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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US495869116 Jun 198925 Sep 1990Fluid operated vibratory jar with rotating bit
US513909318 Apr 199118 Aug 1992Ingersoll-Rand CompanyWrap spring clutch for percussive apparatus
US515622314 May 199120 Oct 1992Fluid operated vibratory jar with rotating bit
US519194614 Jul 19929 Mar 1993Ingersoll-Rand CompanyWrap spring clutch for percussive apparatus
US532595024 Aug 19935 Jul 1994Ingersoll-Rand CompanyLubricant remover for a wrap spring clutch
US701115619 Feb 200314 Mar 2006Ashmin, LCPercussion tool and method
US743462325 May 200514 Oct 2008Ashmin, LCPercussion tool and method