Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 2,003,155
Reversible Friction Clutch
Patentee:
Edward M. Pfauser (exact or similar names) - Wauwatosa, WI

USPTO Classifications:
192/114R, 192/44, 292/307R, 81/59.1

Tool Categories:
wrenches : ratchet wrenches

Assignees:
Blackhawk Mfg. Co. - Milwaukee, WI

Manufacturer:
Blackhawk Mfg. Co. - Milwaukee, WI

Witnesses:
none listed

Patent Dates:
Applied: Jul. 01, 1932
Granted: May 28, 1935

Patent Pictures:
Edward M. Pfauser patent May 28, 1935
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
Rollers and tapered surfaces create wedging action between the handle and the socket-driving shank on the head. This patent improves patent no. 1,936,640 with spring-loaded plungers to hold the adjustment for the direction of the ratchet action.

Used along with patent nos. 1,927,844 and 1,936,640 on the BLACKHAWK FREEWHEEL RATCHET.

Copyright © 2002-2024 - DATAMP