Jonathan Laird resumes & CV records
Resumes
Jonathan Laird
Jonathan Laird
Location:
United States
Jonathan L Laird DeceasedRomansville, PA
Jonathan Laird Phones & Addresses
Coatesville, PA
Sadsburyville, PA
Parkesburg, PA
Mentions for Jonathan L Laird
Publications & IP owners
Us Patents
Strap Wrench
US Patent:
4145938, Mar 27, 1979
Filed:
Oct 11, 1977
Appl. No.:
5/840619
Inventors:
Jonathan L. Laird - Parkesburg PA
International Classification:
B25B 1352
US Classification:
81 64
Abstract:
A strap wrench has a handle having a strap element pivoted to the handle by a pair of links to permit passage of the free end of the strap portion between the links, whereby the strap may be wrapped in full circumscribing relation to a workpiece. The handle has a camming surface positioned to confront the exposed surface of the strap when it is wrapped around the workpiece and to engage the same and without moving parts to anchor the strap at that point when said handle is actuated to apply torque to the workpiece. The strap has a friction surface on the interior side confronting the workpiece and has a guide surface on the exposed side with lesser friction to permit the strap to slide over said camming surface prior to applying torquing action upon said handle to afford snug engagement of the strap with the workpiece. Preferably, the handle is formed of a one-piece rigid plastic composition having a density which permits the wrench to float near the surface of a body of liquid.
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