Manhole cover lifter

Details Manhole cover lifter Manhole cover lifter

2005-11-15

2005-11-15

Wilson, Lee D. (Department: 3723)

Implements or apparatus for applying pushing or pulling force

Single throw lever

Special engaging feature

Reexamination Certificate

active

06964407

ABSTRACT:
The present invention discloses a lifter for a manhole cover which has an elongated arm having a handle on one end for being grasped and lifted upwardly by a user and on the other end a pair of hooks for placement on or under the edge of the manhole cover. Disposed intermediate the ends of the handle is a slidable downwardly extending hook member which is for placement on the side of the manhole cover opposite to the side of the manhole cover where the hooks are placed. The downwardly extending hook member is slidable along the handle so that the present invention will fit any size of manhole cover. Also disposed on the handle is a clip which locks the downwardly extending hook member in place along the handle for storage.

REFERENCES:
patent: 824041 (1906-06-01), Pilliner
patent: 1933384 (1933-10-01), Moyian
patent: 2655399 (1953-10-01), McMillan
patent: 2832628 (1958-04-01), Turnbull
patent: 3985338 (1976-10-01), Herrmann
patent: 4157810 (1979-06-01), Haller et al.
patent: 4365925 (1982-12-01), Girtz
patent: 4482182 (1984-11-01), Mortensen
patent: 4991893 (1991-02-01), Gordon et al.
patent: 5775674 (1998-07-01), Bigham
patent: 6290211 (2001-09-01), Pheiffer
patent: 6439628 (2002-08-01), Eslambolchi et al.

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