Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Patent
1986-01-22
1988-03-29
Meislin, Debra
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
7100, 811776, 811777, B25G 100, B25B 1306
Patent
active
047335831
ABSTRACT:
A lug wrench for loosening and tightening lug nuts on a vehicle wheel having a shaft with a socket at one end and yoke radially extending from the shaft pivotally connected to a moment arm bar such that the shaft can be rotated between a first position at an midpoint of the moment arm bar and the second position substantially at an extremity of the moment arm bar, a remote end of the moment arm bar away from the shaft having a multiplier bar pivotally connected thereto adapted to fold over on to the moment arm bar and attached thereto by means of a retaining clip. When both bars are linearly extended there is mechanical advantage when loosening the lug nut. When the bars are folded upon each other, overtightening is precluded.
REFERENCES:
patent: 1286161 (1918-11-01), Wagner
patent: 1453984 (1923-05-01), Norlund
patent: 1531732 (1925-03-01), Burkholder
patent: 1715902 (1929-06-01), Countryman
patent: 1721756 (1929-07-01), Walker
patent: 1733642 (1929-10-01), Beduorz
patent: 1963564 (1934-06-01), Smith et al.
patent: 2476364 (1949-07-01), Gaines
patent: 2504345 (1950-04-01), Nellis
patent: 3156143 (1964-11-01), Wolf
patent: 4070931 (1978-01-01), Florko, Jr.
patent: 4297916 (1981-11-01), Burroughs
patent: 4596167 (1986-06-01), White, Jr.
Bloom Leonard
Meislin Debra
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