Ratcheting wrench

Details Ratcheting wrench Ratcheting wrench

1998-06-04

1999-12-07

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Pivoted side jaw

81 99, B25B 1328

Patent

active

059964456

ABSTRACT:
A ratcheting open-ended wrench has a movable jaw pivotally attached to a fixed jaw. The jaws define an opening capable of receiving the hexagonal head of a fastener such as a nut, bolt, hose fitting or pipe fitting. The fastener may be turned by moving the handle of the wrench back and forth without disengaging the fastener from the opening. A stop prevents the movable jaw from moving in a way which would place excessive stresses on the movable jaw. An arc shaped bearing surface on the movable jaw is received in a mating bearing surface on the fixed jaw. The combination of the stop and the mating bearing surfaces greatly reduces shear forces on the pivot. The point about which the movable jaw pivots is located forwardly relative to the opening. A wrench according to the invention can be both strong and compact. The wrench is reliable simple to manufacture and may be made with only three or four parts.

REFERENCES:
patent: 743019 (1903-11-01), Nelson
patent: 749134 (1904-01-01), Hyman
patent: 770574 (1904-09-01), Halstead et al.
patent: 1015504 (1912-01-01), Meyer
patent: 1050215 (1913-01-01), Hesse
patent: 1068771 (1913-07-01), Holmes
patent: 1072090 (1913-09-01), Cook
patent: 1183371 (1916-05-01), Ginsburg
patent: 1369459 (1921-02-01), Miskimen
patent: 1466136 (1923-08-01), Matthews
patent: 1635930 (1927-07-01), Forsdahl
patent: 2000744 (1935-05-01), Davies
patent: 2277400 (1942-03-01), Hewitt et al.
patent: 2618996 (1952-11-01), Logan
patent: 2655064 (1953-10-01), Simon et al.
patent: 2846912 (1958-08-01), Day
patent: 3309949 (1967-03-01), Neff
patent: 3641847 (1972-02-01), Horton
patent: 3695125 (1972-10-01), Glass et al.
patent: 3741047 (1973-06-01), Kanowsky
patent: 3803954 (1974-04-01), Lenker
patent: 3878741 (1975-04-01), Wilson
patent: 3901106 (1975-08-01), Causey
patent: 3921474 (1975-11-01), Dyck et al.
patent: 4065986 (1978-01-01), Meggs et al.
patent: 4204440 (1980-05-01), Del Prete et al.
patent: 4276790 (1981-07-01), Davis
patent: 4324159 (1982-04-01), Wrobbel
patent: 4485702 (1984-12-01), Swan et al.
patent: 4554847 (1985-11-01), DeSantis
patent: 4584913 (1986-04-01), Logan
patent: 4718315 (1988-01-01), Nitschmann
patent: 4825731 (1989-05-01), Stojanowski
patent: 4848193 (1989-07-01), Wylie, III
patent: 5018412 (1991-05-01), Wylie, III
patent: 5131300 (1992-07-01), Daniel
patent: 5148725 (1992-09-01), Botha
patent: 5381710 (1995-01-01), Baker
patent: 5582082 (1996-12-01), Gajo
Popular Science Magazine, Jun. 1997, p. 24.
Snap-On Incorporated Catalogue, 75th Anniversary Edition, Jan. 1995, p. 122, Snap-On Incorporated, Kenosha, Wisconsin.

Affiliated with

Also associated with

Rating

Ratcheting wrench does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ratcheting wrench, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ratcheting wrench will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-811920