Adjustable fulcrum hammer

Details Adjustable fulcrum hammer Adjustable fulcrum hammer

1982-04-05

1983-12-27

Schmidt, Frederick R.

Implements or apparatus for applying pushing or pulling force

Nail extractor type

Single throw lever

B25C 1100

Patent

active

044226209

ABSTRACT:
An adjustable fulcrum hammer with a handle having a grip at one end, a head fixed about the other end, a fulcrum rod extending into the hollow interior of the handle through a bore in the head, an elastomeric member on the end of the rod remote from the head for contacting a fulcrum surface, a set screw extending the handle between its ends for locking the fulcrum rod in any desired position and a spring mounted within the handle for urging the rod outward. In another embodiment of the present invention, a locking mechanism is integrally provided by cooperating threads which disengage and allow for reciprocable movement when the fulcrum member is rotated a quarter-turn.

REFERENCES:
patent: 145992 (1873-12-01), Dillon
patent: 540967 (1895-06-01), Eveleth
patent: 587242 (1897-07-01), Shepard
patent: 619325 (1899-02-01), Martin
patent: 1226413 (1917-05-01), Thompson
patent: 1508395 (1924-09-01), Isham
patent: 2589046 (1952-03-01), Brown et al.
patent: 2589047 (1952-03-01), Brown et al.

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