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:
May. 05, 1992
Filed:
Aug. 27, 1991
James A Garman, Eureka, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Fasteners, such as bolts, are normally utilized to provide an arrangement to secure two members together. When working forces are applied to the assembled members trying to tear them apart, the size of the bolts and the ability to apply the proper torque to the bolts on the job site become limitations. In the subject arrangement, a fastener assembly is provided having a hollow cylindrical pin with an enlarged portion at one end and a plurality of ridges and grooves at the other end. A hollow cylindrical shear ring, having a chevron shaped cross-section taken along its longitudinal axis, is placed, during assembly, in intimate contact with the plurality of ridges and grooves. A hollow cylindrical compression ring is placed, during assembly, in contact with the hollow cylindrical shear ring. Upon application of an external force, the hollow cylindrical compression ring is forced over the hollow cylindrical shear ring causing the material of the hollow cylindrical shear ring to flow around the plurality of ridges and into the plurality of grooves to provide a positive retainer. The subject arrangement can be easily assembled and disassembled at the job site by use of a hydraulic tool assembly.