Locking handle

Details Locking handle Locking handle

1995-05-16

1996-12-24

Boucher, Darnell M.

Locks

Special application

For control and machine elements

70210, 70216, 70DIG39, G05G 500

Patent

active

055864597

ABSTRACT:
A locking handle includes a base and a handle rotatably mounted to the base. A well is formed in the handle, and this well communicates with a key opening in a front portion of the handle and a loading opening in a rear portion of the handle. A shaft is mounted in the well via the loading opening to rotate with the handle, and this shaft forms a recess adjacent the key opening. A lock cylinder including a key receiving slot and a locking element is positioned in the recess to rotate in unison with the handle, with the key slot aligned with the key opening. The lock is dimensioned to pass through the loading opening, and the locking element passes outside of the shaft to releasably engage the base and thereby selectably lock the handle against rotation with respect to the base.

REFERENCES:
patent: 1424686 (1922-08-01), Somers
patent: 1845732 (1932-02-01), Tournier et al.
patent: 1920848 (1933-08-01), Diehl
patent: 3234765 (1966-02-01), Kerr
patent: 3455126 (1969-07-01), Spon et al.
patent: 4689976 (1987-09-01), Larsen
patent: 4835998 (1989-06-01), Steinbach
patent: 4911489 (1990-03-01), Hansen et al.
patent: 5038588 (1991-08-01), Hall
patent: 5247817 (1993-09-01), Caldwell
patent: 5467618 (1995-11-01), Shieh
"Activating Handles," Eberhard Manufacturing Co., Section 3, p. 32 (1988).
"Commercial Vehicle and Industrial Hardware," A. L. Hansen Mfg., pp. 88-97 (1995).
Prior art T-Handle (sketch) (1995).

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