Handling: hand and hoist-line implements – Grapple – Fixed and moveable jaw
Patent
1987-02-24
1989-07-25
Marbert, James B.
Handling: hand and hoist-line implements
Grapple
Fixed and moveable jaw
269249, 269258, B66C 144
Patent
active
048506303
ABSTRACT:
A screw-type clamp for gripping structural members such as steel sheets has the general form of a U-shaped clamp body, a screw threadedly received through a portion of the body and a jaw pivotally mounted to the body opposing the screw such that members may be securely gripped by a gripping surface on the screw and a gripping surface of the jaw. The jaw is mounted with a ball and socket configuration such that the gripping surface on the jaw stays parallel with the surface of the member being gripped. In a second embodiment, a similar jaw is mounted to the screw. The ball in the ball and socket joints contains an annular groove and is held into the socket by a plurality of pins that tangentially engage the annular groove.
REFERENCES:
patent: 880948 (1908-03-01), Wihelm et al.
patent: 895647 (1908-08-01), Zang
patent: 1036386 (1912-01-01), Denburg
patent: 1063332 (1913-06-01), Diehl
patent: 2699190 (1952-03-01), Packer
patent: 2729126 (1953-02-01), Stanton, Jr. et al.
patent: 2845828 (1954-12-01), Thomeczek
patent: 3120046 (1964-02-01), Olsen
patent: 3178219 (1965-04-01), Renfroe
patent: 3269766 (1966-08-01), Gardner
patent: 3403901 (1968-10-01), Servadio
patent: 3947011 (1976-03-01), Tsuyama
patent: 4034971 (1977-07-01), Tsuyama
patent: 4183571 (1980-01-01), Renfroe
J.C. Renfroe & Sons, Inc.
Marbert James B.
LandOfFree
Clamp with movable jaw structure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Clamp with movable jaw structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clamp with movable jaw structure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2352320