US20060091371A1 - CNC impact load deflector sleeve and removable collar for cable and post protection - Google Patents
CNC impact load deflector sleeve and removable collar for cable and post protection Download PDFInfo
- Publication number
- US20060091371A1 US20060091371A1 US10/976,201 US97620104A US2006091371A1 US 20060091371 A1 US20060091371 A1 US 20060091371A1 US 97620104 A US97620104 A US 97620104A US 2006091371 A1 US2006091371 A1 US 2006091371A1
- Authority
- US
- United States
- Prior art keywords
- cnc
- sleeve
- ilds
- cable
- fence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
Definitions
- This invention provides the protection for cables and posts (or columns) against the dynamic loads from rolling stones, vehicular impact, ice impact or other forms of transient loads.
- a rock fall mitigation fence RFMF
- CNC/ILDS CNC IMPACT LOAD DEFLECTOR SLEEVES
- RC ROMOVABLE COLLAR
- the CNC/ILDS sleeves and RC collar can be installed on the cable holding the fence post, which, in turn, stretches rock fall drape net.
- the drape net, fence post, and cable constitute the rock fall mitigation fence system (RFMFS).
- a rock fall mitigation fence is frequently used to protect the traveling vehicles against potential hazards of falling rocks.
- the fence system is composed of the fence cable, fence posts, and rock fall drape net resting on the cable, which, in turn, is stretched and supported on the fence posts and cable anchors.
- the fence posts are embedded in rock and the cable is connected to the ground anchor embedded in rock.
- the RFMFS functions as a flexible fence system for retaining falling rocks by dissipating their dynamic energy during the back and forth swing upon rock impact.
- the mass of falling rocks varies a great deal. It can range from a few hundred pounds to many tons.
- CNC/ILDS CNC IMPACT LOAD DEFLECTOR SLEEVE
- RC Removable Collars
- FIGS. 1 . a and b show the plan and side views of a CNC/ILDS and a RC.
- FIG. 2 shows a CNC/ILDS and a RC installed on a cable.
- the CNC/ILDS sleeve is a cylinder made of an appropriate material (usually steel) and has an appropriate diameter, length, and thickness for embracing a cable or post with a clearance for near frictionless rotation. The thickness and material type should be selected to provide sufficient strength to prevent the puncture by the rolling rocks.
- the CNC/ILDS Upon contacting any high-speed rolling rock, the CNC/ILDS rotates nearly frictionless about the cable and, thereby, avoid cable cut.
- the sleeve and collar can be made of any materials deemed corrosion resistant, and sufficiently strong against the destructive force of rolling stones, wind, vehicular impact, or any other forms of impact force.
- FIG. 1 . a and b show the plain and side views of a CNC/ILDS and a collar.
- FIG. 2 CNC/ILDS sleeve and removable collars installed to protect the cable in an event of rolling stone impact.
- FIG. 1 . a illustrates the plan and side views of a CNC/ILDS sleeve. It is a cylindrical tube of any appropriate material made to loosely embrace a cable or a post to allow its near frictionless rotation about the cable or post. This mechanism allows a CNC/ILDS sleeve to deflect a rolling rock upon contact and, thereby, reduce the failure potential of the fence cable.
- FIG. 1 . b illustrates the RC collar that can be easily installed and removed from a cable for easy construction and repair. The collar is positioned between two different-size CNC/ILDS sleeves to prevent a smaller sleeve from slipping into a larger one.
- FIG. 2 shows a cable with CNC/ILDS sleeves and a RC collar between two sleeves.
- CNC/ILDS sleeves can be installed along the whole length of the cable and/or the post.
- the functionality of the CNC/ILDS is explained as follows:
- RC collars are installed between two CNC/ILDS sleeves at the lowest pint of the cable, a larger sleeve for protecting the connection just above the ground anchor and the smaller one for protecting the cable right above the cable connection the larger sleeve to prevent the smaller sleeve from slipping into the larger one.
- the fence system has to be structurally designed. Many instances of fence failures showed that the falling rocks severed the cables, and uprooted or severely bent the fence post. The failure of a RFMFS imposes a safety risk of traveling motorists from falling rocks as demonstrated in the recent rock fall event along Interstate Highway I70 near Georgetown, Colo. on Apr. 8, 2004.
- the fence cable needs to be protected from the cut by the large falling rock and the CNC/ILDS sleeve in this invention provides such protection.
- the RC collar enhances the constructability because it can be easily opened and removed, the large sleeve slips over the small sleeve and cable unbolted to allow sleeve removal and repair.
Abstract
This patent application is submitted for a CNC/ILDS sleeve and RC removable collar designed to provide a means of protecting fence cables and posts. Without such protection a conventional rock fall protection fence frequently fails upon impact from large falling rocks spinning at a high angular velocity and with an immense momentum, as demonstrated in many rock fall-induced fence failures. CNC/ILDS sleeves embrace a cable or post to deflect falling rocks spinning at a high angular velocity and associated impact forces and, thereby, protect them by avoiding detrimental blows from the falling rocks. The RC (removable collar) is used when two different-size CNC/ILDS sleeves are used. This is to avoid a smaller sleeve from slipping into a larger one and to assure the protection that CNC/ILDS sleeve is designed for. Additionally, the RC collar also enhances the constructability and eases the maintenance of a rock fall mitigation fence system. In summary, the CNC/ILDS sleeve together with the RC removable collar embraces the fence cable and post, provides a means of their protection, and enhances the safety of traveling motorists.
Description
- 1. Field of the Invention
- This invention provides the protection for cables and posts (or columns) against the dynamic loads from rolling stones, vehicular impact, ice impact or other forms of transient loads. For instance, a rock fall mitigation fence (RFMF) is an ideal situation for the installation of CNC IMPACT LOAD DEFLECTOR SLEEVES (CNC/ILDS) and ROMOVABLE COLLAR (RC). The CNC/ILDS sleeves and RC collar can be installed on the cable holding the fence post, which, in turn, stretches rock fall drape net. The drape net, fence post, and cable constitute the rock fall mitigation fence system (RFMFS).
- 2. Description of Prior Art
- A rock fall mitigation fence (RFMF) is frequently used to protect the traveling vehicles against potential hazards of falling rocks. The fence system is composed of the fence cable, fence posts, and rock fall drape net resting on the cable, which, in turn, is stretched and supported on the fence posts and cable anchors. The fence posts are embedded in rock and the cable is connected to the ground anchor embedded in rock. The RFMFS functions as a flexible fence system for retaining falling rocks by dissipating their dynamic energy during the back and forth swing upon rock impact. The mass of falling rocks varies a great deal. It can range from a few hundred pounds to many tons.
- When falling from the hill/mountain top or slope, a falling rock gains momentum as it rolls down the slope. When it comes in contact with a RFMFS, the rock rotates at an extremely high angular velocity, can sever fence-supporting cables, and knocks out or severely bends fence posts, cuts anything it touches. The failure of the RFMFS allows the falling rocks to land on the highway or, in some cases, on top of a moving vehicle, as demonstrated in the rock fall in Georgetown, Colo. on Apr. 8, 2004.
- To date the only mechanism for the failure prevention of the RFMFS is to use stronger nets, cables and posts. The literature search including the search on the US Patent and Trademark web site and the communication with fence installers did not reveal any other fence cable or post protection apparatuses as the CNC Impact Load Deflector Sleeve (CNC//ILDS) and Removable Collar (RC) submitted in this invention that deflect the moving rocks and impact force, and, thereby, reduce the chance of cable and post failures.
- Accordingly there exists a need for a mechanism for deflecting falling rocks and impact force, reducing the chance of fence failure and enhancing the safety of the traveling public.
- The present invention, CNC IMPACT LOAD DEFLECTOR SLEEVE (CNC/ILDS), and Removable Collars (RC), reduces the impact load effect on both cables and fence posts by deflecting the falling rocks upon contact.
FIGS. 1 .a and b show the plan and side views of a CNC/ILDS and a RC.FIG. 2 shows a CNC/ILDS and a RC installed on a cable. The CNC/ILDS sleeve is a cylinder made of an appropriate material (usually steel) and has an appropriate diameter, length, and thickness for embracing a cable or post with a clearance for near frictionless rotation. The thickness and material type should be selected to provide sufficient strength to prevent the puncture by the rolling rocks. Upon contacting any high-speed rolling rock, the CNC/ILDS rotates nearly frictionless about the cable and, thereby, avoid cable cut. The sleeve and collar can be made of any materials deemed corrosion resistant, and sufficiently strong against the destructive force of rolling stones, wind, vehicular impact, or any other forms of impact force. -
FIG. 1 .a and b show the plain and side views of a CNC/ILDS and a collar. -
FIG. 2 CNC/ILDS sleeve and removable collars installed to protect the cable in an event of rolling stone impact. -
FIG. 1 .a illustrates the plan and side views of a CNC/ILDS sleeve. It is a cylindrical tube of any appropriate material made to loosely embrace a cable or a post to allow its near frictionless rotation about the cable or post. This mechanism allows a CNC/ILDS sleeve to deflect a rolling rock upon contact and, thereby, reduce the failure potential of the fence cable.FIG. 1 .b illustrates the RC collar that can be easily installed and removed from a cable for easy construction and repair. The collar is positioned between two different-size CNC/ILDS sleeves to prevent a smaller sleeve from slipping into a larger one.FIG. 2 shows a cable with CNC/ILDS sleeves and a RC collar between two sleeves. - Installation of CNC/ILDS
- To mitigate the failure potential of a RFMFS, CNC/ILDS sleeves can be installed along the whole length of the cable and/or the post. The functionality of the CNC/ILDS is explained as follows:
-
- A CNC/ILDS can rotate nearly freely around the cable and post that they are protecting.
- Upon contacting a sleeve, the impact force from a rolling rock or any other impact sources, causes the sleeve to rotate.
- The action of sleeve rotation deflects the impact force and rock.
- The deflection of the impact force reduces the damage potential of the cable and post.
- RC collars are installed between two CNC/ILDS sleeves at the lowest pint of the cable, a larger sleeve for protecting the connection just above the ground anchor and the smaller one for protecting the cable right above the cable connection the larger sleeve to prevent the smaller sleeve from slipping into the larger one. The fence system has to be structurally designed. Many instances of fence failures showed that the falling rocks severed the cables, and uprooted or severely bent the fence post. The failure of a RFMFS imposes a safety risk of traveling motorists from falling rocks as demonstrated in the recent rock fall event along Interstate Highway I70 near Georgetown, Colo. on Apr. 8, 2004. To reduce the risk of failure of a RFMFS, the fence cable needs to be protected from the cut by the large falling rock and the CNC/ILDS sleeve in this invention provides such protection. In an event of need for sleeve replacement, the RC collar enhances the constructability because it can be easily opened and removed, the large sleeve slips over the small sleeve and cable unbolted to allow sleeve removal and repair.
Claims (14)
1-5. (canceled)
6. A guard device for protecting an object from damage by falling rocks or the like, the guard device comprising:
at least one impact load deflector sleeve rotatably positionable about the object.
7. The guard device of claim 6 and further comprising:
a plurality of impact load deflector sleeves; and
a removable collar positioned between each of the impact load deflector sleeves.
8. The guard device of claim 6 wherein at least two of the impact load deflector sleeves have a different diameter.
9. The guard device of claim 7 wherein the removable collar has a first collar portion and a second collar portion, the first collar portion being hingedly connected to the second collar portion.
10. The guard device of claim 9 wherein each of the first collar portion and the second collar portion has a hinged side and an opening side, and further comprising:
a locking mechanism for securing the opening side of the first collar portion to the opening side of the second collar portion.
11. The guard device of claim 6 wherein each impact load deflector sleeve is substantially tubular having a diameter greater than the diameter of the object.
12. The guard device of claim 6 wherein the object is selected from the group consisting of a cable and a post.
13. A method for protecting an object from damage by failing rocks or the like, the method comprising:
rotatably positioning at least one impact load deflector sleeve about the object;
impacting the impact load deflector sleeve with a falling rock; and
deflecting the falling rock by rotating the load deflector sleeve.
14. The method of claim 13 and further comprising:
providing a plurality of impact load deflector sleeves; and
positioning a removable collar positioned each of the impact load deflector sleeves.
15. The method of claim 14 wherein the removable collar has a first collar portion and a second collar portion, and further comprising:
hingedly connecting the first collar portion to the second collar portion.
16. The method of claim 15 wherein each of the first collar portion and the second collar portion has a hinged side and an opening side, and further comprising:
securing the opening side of the first collar portion to the opening side of the second collar portion with a locking mechanism.
17. The method of claim 13 wherein each impact load deflector sleeve is substantially tubular having a diameter greater than the diameter of the object.
18. The method of claim 13 wherein the object is selected from the group consisting of a cable and a post.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/976,201 US20060091371A1 (en) | 2004-10-28 | 2004-10-28 | CNC impact load deflector sleeve and removable collar for cable and post protection |
PCT/US2005/037672 WO2006049882A2 (en) | 2004-10-28 | 2005-10-18 | Cnc impact load deflector sleeve and removable collar for cable and post protection |
US11/261,175 US20060091370A1 (en) | 2004-10-28 | 2005-10-28 | Impact load deflector sleeve and removable collar assembly for cable and post protection |
US12/583,903 US8132790B2 (en) | 2004-10-28 | 2009-08-27 | Impact load deflector sleeve and removable collar assembly for cable and post protection |
US13/199,757 US8336262B1 (en) | 2004-10-28 | 2011-09-08 | Impact load deflector sleeve and removable collar assembly for cable and post protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/976,201 US20060091371A1 (en) | 2004-10-28 | 2004-10-28 | CNC impact load deflector sleeve and removable collar for cable and post protection |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/261,175 Continuation-In-Part US20060091370A1 (en) | 2004-10-28 | 2005-10-28 | Impact load deflector sleeve and removable collar assembly for cable and post protection |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060091371A1 true US20060091371A1 (en) | 2006-05-04 |
Family
ID=36260764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/976,201 Abandoned US20060091371A1 (en) | 2004-10-28 | 2004-10-28 | CNC impact load deflector sleeve and removable collar for cable and post protection |
Country Status (2)
Country | Link |
---|---|
US (1) | US20060091371A1 (en) |
WO (1) | WO2006049882A2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090315007A1 (en) * | 2004-10-28 | 2009-12-24 | Charles Russel Cox | Impact load deflector sleeve and removable collar assembly for cable and post protection |
US8814145B2 (en) | 2012-07-06 | 2014-08-26 | Joel Duane Herman | Railing support post with threaded receivers |
US9145705B2 (en) | 2012-07-06 | 2015-09-29 | Joel Duane Herman | Railing system and tensioned posts used therein |
US9765907B1 (en) | 2016-06-10 | 2017-09-19 | Joel Duane Herman | Anchor |
US10006222B2 (en) | 2012-07-06 | 2018-06-26 | Joel Duane Herman | Railing support post with threaded receivers |
CN108411823A (en) * | 2018-03-01 | 2018-08-17 | 苏州科技大学 | A kind of fabricated flexible protection guardrail |
US10837148B2 (en) * | 2016-07-25 | 2020-11-17 | Robert Gerrard | Surface mount security barrier |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1786585A (en) * | 1927-11-28 | 1930-12-30 | Herbert E Walker | Device for holding looms on cables |
US2871282A (en) * | 1957-06-17 | 1959-01-27 | Bodendieck Tool Company | Hot line guards |
US3060069A (en) * | 1959-10-23 | 1962-10-23 | Fred E Sindars | Insulating jacket for fluid lines and the like |
US3249679A (en) * | 1964-10-02 | 1966-05-03 | Virginia Plastics | Protective cover for electrical connections and the like |
US3251161A (en) * | 1962-11-26 | 1966-05-17 | Preformed Line Products Co | Protective appliance for suspended linear bodies |
US3716733A (en) * | 1972-02-02 | 1973-02-13 | M Keith | Electric motor with corrugated plastic protective covering on the lead wires |
US3825447A (en) * | 1972-07-17 | 1974-07-23 | R Kraals | Battery cover |
US3900698A (en) * | 1974-05-02 | 1975-08-19 | Sanji Yotsugi | Electric wire insulating cover |
US5661263A (en) * | 1995-05-10 | 1997-08-26 | Phaeton, Llc | Surface raceway and method |
US6018874A (en) * | 1997-04-15 | 2000-02-01 | Todd; William M. | Sleeve for power cords |
US6740818B2 (en) * | 2001-11-27 | 2004-05-25 | Kim Marie Clark | Cord cover and deployment member and methods of use |
US6830076B1 (en) * | 2000-08-02 | 2004-12-14 | The Boeing Company | Self-compensating hybrid combination ducts |
US7164083B1 (en) * | 2005-09-29 | 2007-01-16 | Edgar Carroll | Electrical outlet covering apparatus |
US7183502B1 (en) * | 2003-07-18 | 2007-02-27 | David H. Johnston | Extendable channel unit containing a conductor |
Family Cites Families (3)
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US5293721A (en) * | 1991-04-05 | 1994-03-15 | The Omt Group | Horizontal cable animal barrier |
US5143354A (en) * | 1991-08-29 | 1992-09-01 | Nolan Mcedward M | Animal retentive fence attachment |
US6550409B1 (en) * | 2001-11-28 | 2003-04-22 | Damon Eugene Smith | Rat ring |
-
2004
- 2004-10-28 US US10/976,201 patent/US20060091371A1/en not_active Abandoned
-
2005
- 2005-10-18 WO PCT/US2005/037672 patent/WO2006049882A2/en active Application Filing
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1786585A (en) * | 1927-11-28 | 1930-12-30 | Herbert E Walker | Device for holding looms on cables |
US2871282A (en) * | 1957-06-17 | 1959-01-27 | Bodendieck Tool Company | Hot line guards |
US3060069A (en) * | 1959-10-23 | 1962-10-23 | Fred E Sindars | Insulating jacket for fluid lines and the like |
US3251161A (en) * | 1962-11-26 | 1966-05-17 | Preformed Line Products Co | Protective appliance for suspended linear bodies |
US3249679A (en) * | 1964-10-02 | 1966-05-03 | Virginia Plastics | Protective cover for electrical connections and the like |
US3716733A (en) * | 1972-02-02 | 1973-02-13 | M Keith | Electric motor with corrugated plastic protective covering on the lead wires |
US3825447A (en) * | 1972-07-17 | 1974-07-23 | R Kraals | Battery cover |
US3900698A (en) * | 1974-05-02 | 1975-08-19 | Sanji Yotsugi | Electric wire insulating cover |
US5661263A (en) * | 1995-05-10 | 1997-08-26 | Phaeton, Llc | Surface raceway and method |
US6018874A (en) * | 1997-04-15 | 2000-02-01 | Todd; William M. | Sleeve for power cords |
US6830076B1 (en) * | 2000-08-02 | 2004-12-14 | The Boeing Company | Self-compensating hybrid combination ducts |
US6740818B2 (en) * | 2001-11-27 | 2004-05-25 | Kim Marie Clark | Cord cover and deployment member and methods of use |
US7183502B1 (en) * | 2003-07-18 | 2007-02-27 | David H. Johnston | Extendable channel unit containing a conductor |
US7164083B1 (en) * | 2005-09-29 | 2007-01-16 | Edgar Carroll | Electrical outlet covering apparatus |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090315007A1 (en) * | 2004-10-28 | 2009-12-24 | Charles Russel Cox | Impact load deflector sleeve and removable collar assembly for cable and post protection |
US8132790B2 (en) * | 2004-10-28 | 2012-03-13 | Charles Russel Cox | Impact load deflector sleeve and removable collar assembly for cable and post protection |
US8814145B2 (en) | 2012-07-06 | 2014-08-26 | Joel Duane Herman | Railing support post with threaded receivers |
US9145705B2 (en) | 2012-07-06 | 2015-09-29 | Joel Duane Herman | Railing system and tensioned posts used therein |
US10006222B2 (en) | 2012-07-06 | 2018-06-26 | Joel Duane Herman | Railing support post with threaded receivers |
US9765907B1 (en) | 2016-06-10 | 2017-09-19 | Joel Duane Herman | Anchor |
US10364576B2 (en) | 2016-06-10 | 2019-07-30 | Joel Duane Herman | Anchor |
US10604942B2 (en) | 2016-06-10 | 2020-03-31 | Joel Duane Herman | Anchor |
US10837148B2 (en) * | 2016-07-25 | 2020-11-17 | Robert Gerrard | Surface mount security barrier |
CN108411823A (en) * | 2018-03-01 | 2018-08-17 | 苏州科技大学 | A kind of fabricated flexible protection guardrail |
Also Published As
Publication number | Publication date |
---|---|
WO2006049882A3 (en) | 2006-10-12 |
WO2006049882A2 (en) | 2006-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |