Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Patent
1996-03-22
1999-07-20
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
81 61, B25B 1346
Patent
active
059243414
ABSTRACT:
Disclosed is a novel means for connecting and disconnecting fluid line couplings usually encountered in the automotive, refrigeration, and plumbing industries. The present invention comprises a common ratcheting handle adapted to receive a plurality of standard sized cogwheels. Independently, a cogwheel, having peripheral radially extending gear teeth and a central polygonal aperture intersected by a free opening is slidably positioned along a tubular conduit and onto a nut. The handle, having a cradle, is mated to the cogwheel and worked ratchet fashion to achieve a desired task. Said cradle has a set of oppositely situated spring biased pawls which simultaneously work the flats of the cogwheel teeth and intermittently collapse into a chamber thereby assuring that at least one pawl is in contact with the cogwheel to apply rotational force and to prevent accidental separation of the cogwheel from the handle. To reverse the direction of the rotational force the handle is turned around and refitted to said cogwheel.
REFERENCES:
patent: 1422121 (1922-07-01), Milen
patent: 2527033 (1950-10-01), Rodgers et al.
patent: 2536172 (1951-01-01), Halperin
patent: 2551669 (1951-05-01), Hale
patent: 2757564 (1956-08-01), Reaves
patent: 3504579 (1970-04-01), Harlan
patent: 4604919 (1986-08-01), Rollo
patent: 5454283 (1995-10-01), Stefano
Imperial-Eastman Ratchet Wrenches and Adapters, circa 1973.
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