Lockout device

Details Lockout device Lockout device

1998-04-24

2000-06-06

Barrett, Suzanne Dino

Locks

Special application

For control and machine elements

70178, 70221, 70432, F16K 3500

Patent

active

06070442&

ABSTRACT:
A locking device for use in connection with an energy controlling apparatus, such as a valve, or regulator, to prevent unauthorized persons from changing the position of a rotatable shaft of the apparatus that controls the amount of energy that flows through the apparatus. The locking device includes a handle used to manually set the position of the shaft. It also includes a gear that is rotatably mounted in the handle and is fixed to the shaft of the apparatus. A first locking mechanism carried by the handle mechanically and selectively couples the handle and the gear through a key access to the lock. A spring-biased ratchet mechanism may be provided to permit rotation of the shaft in one direction only. A personal locking mechanism with only a single key is selectively lockable to the handle so that in the locked position it prevents access to the first locking mechanism.

REFERENCES:
patent: 173853 (1876-02-01), Gardiner
patent: 440714 (1890-11-01), Lamb et al.
patent: 441357 (1890-11-01), Crowell
patent: 485899 (1892-11-01), Tannenberg
patent: 617648 (1899-01-01), Fergusson et al.
patent: 1026039 (1912-05-01), Humphrey
patent: 1154389 (1915-09-01), Fogalsang
patent: 1248204 (1917-11-01), Thomsen
patent: 1250127 (1917-12-01), Beers
patent: 1297038 (1919-03-01), Timmerhoff
patent: 1302933 (1919-05-01), Langton
patent: 1329913 (1920-02-01), McGuire
patent: 1366114 (1921-01-01), Boggs
patent: 1380675 (1921-06-01), Myers
patent: 1464854 (1923-08-01), Rose
patent: 1511351 (1924-10-01), Michaud
patent: 1516418 (1924-11-01), Woodward et al.
patent: 1526047 (1925-02-01), Butterworth
patent: 1596230 (1926-08-01), Benford
patent: 1640763 (1927-08-01), Geyer et al.
patent: 1672137 (1928-06-01), Seng
patent: 1843072 (1932-01-01), Stone
patent: 2064769 (1936-12-01), Thompson
patent: 2316956 (1943-04-01), Heath
patent: 2795129 (1957-06-01), Schoepe
patent: 2838270 (1958-06-01), Danielson
patent: 3134291 (1964-05-01), Barry
patent: 3340709 (1967-09-01), Callahan
patent: 4073165 (1978-02-01), Grundstrom et al.
patent: 4235258 (1980-11-01), Uno et al.
patent: 4450697 (1984-05-01), Ellis
patent: 4723569 (1988-02-01), Ellis
patent: 4899564 (1990-02-01), Gilbert
patent: 5085063 (1992-02-01), Van Dyke
patent: 5092359 (1992-03-01), Wirth et al.
patent: 5203187 (1993-04-01), Kane
patent: 5214982 (1993-06-01), Shieh
patent: 5415017 (1995-05-01), Benda et al.
patent: 5425256 (1995-06-01), Crosby
patent: 5664447 (1997-09-01), Neeley

Affiliated with

Also associated with

Rating

Lockout device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lockout device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lockout device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2204891