Extension wrench for water meter nut

Details Extension wrench for water meter nut Extension wrench for water meter nut

1996-02-26

1997-09-30

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 574, 81 582, B25B 1346

Patent

active

056716435

ABSTRACT:
An extension wrench is presented which is especially adapted to remove nuts from underground water meters which are located in a confined space. The invention is approximately six feet long having two handles at the top and a ratchet mechanism located at the bottom. One of the two handles is movable and supplies force to the ratchet mechanism some six feet below the pivoting handle. The ratchet mechanism can be placed around a nut in a confined area. The ratchet mechanism has an open-ended but latched portion. As the ratchet mechanism rotates to loosen or tighten a nut, the latch mechanism automatically closes. Loosening or tightening of the nut is accomplished by simply reversing the direction of the device by 180 degrees. Also provided is a mechanism to retain the nut within the ratchet mechanism while the nut is being tightened.

REFERENCES:
patent: 493273 (1893-03-01), Killinger
patent: 2954715 (1960-10-01), Wycech
patent: 3334671 (1967-08-01), Agostini et al.
patent: 3616714 (1971-11-01), Gregory
patent: 4031785 (1977-06-01), Wheeler
patent: 4098151 (1978-07-01), Bliss
patent: 4334443 (1982-06-01), Pearson
patent: 4339969 (1982-07-01), Hage
patent: 4492133 (1985-01-01), Schosek
patent: 4562757 (1986-01-01), Furey
patent: 4630511 (1986-12-01), Shirley
patent: 5277087 (1994-01-01), Wilson, Jr. et al.
patent: 5309796 (1994-05-01), Jones
patent: 5320003 (1994-06-01), Ely et al.

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