The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2008
Filed:
Oct. 18, 2006
Bobby Collins, Kenner, LA (US);
Bobby Collins, Kenner, LA (US);
Other;
Abstract
A compression gauge for measuring the compression applied to a test bolt. The compression gauge includes a passive hydraulic cylinder and a piston slidably disposed within the cylinder. The piston and the cylinder define an hydraulic chamber. A threaded test bolt passes through the piston and cylinder to engage a female receiver on the opposite side of the compression gauge. Tightening the test bolt will cause the bolt to compress the piston and cylinder which will pressurize the hydraulic chamber. A pressure gauge measures the pressure achieved in the hydraulic chamber. This pressure can be easily converted to compressive force. When a hydraulic wrench is used to tighten the test bolt, the wrench can be set to apply the same amount of torque to a workpiece bolt and thus apply the desired amount of compression to the workpiece bolt.