Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 1,533,602
Wrench
Patentees:
Earnest E. Lynch - Hilmar, CA
Homer A. Mead - Turlock, CA

USPTO Classifications:
81/99

Tool Categories:
wrenches : wrench components : wrench jaw components
wrenches : wrench adjustment types : self-adjust wrenches
wrenches : nut wrenches

Assignees:
Masterench Corporation - Turlock, CA

Manufacturer:
Masterench Corporation - Turlock, CA
Heller Brothers - Newark, NJ
LYNCHMEAD MFG. CO. - Turlock, CA

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 21, 1921
Granted: Apr. 14, 1925

Patent Pictures:
Homer A. Mead and Earnest E. Lynch patent April 14, 1925
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The patent is a self-adjusting hook jaw nut wrench with a spring holding the movable jaw in the closed position. This is the first of several patents for the MASTERENCH. It was followed by 1,634,908, 1,735,257, 1,885,616, and 2,028,406.

The earliest production versions of MASTERRENCH are marked, "MASTER RENCH LYNCHMEAD MFG. CO. - TURLOCK, CAL. - NOV 21, 1921 - FEB 25, 1921 - PATS. PENDING. "

Copyright © 2002-2017 - DATAMP