Retractable key carrier

Details Retractable key carrier Retractable key carrier

1983-03-09

1985-06-25

Smith, Gary L.

Locks

Parts, attachments, accessories and adjuncts

For key-operated mechanism

70459, A44B 1500, A45C 1132, A47G 2910

Patent

active

045245940

ABSTRACT:
A key carrier includes an electromagnetic wave transmitter and a key. The key is pivotally mounted within a drum rotatably mounted in the key case. When the drum is rotated so that an opening of the drum is in alignment with an opening of the case, a spring mounted between the key and the drum biases the key out of the case. When the drum is rotated so that the openings are out of alignment, a stop surface of the case retains the key within the drum. A second spring is provided for biasing the drum such that the openings are out of alignment. A manual control wheel is provided for rotating the drum so that the openings are in alignment, so that the key can be extracted from case.

REFERENCES:
patent: 2248436 (1941-07-01), Rivers
patent: 2300979 (1942-11-01), Simpkins
patent: 2411168 (1946-11-01), Seely
patent: 2560595 (1951-07-01), Poncar
patent: 2822684 (1958-02-01), Ray
patent: 2863312 (1958-12-01), Groulx
patent: 3355917 (1967-12-01), Albert
patent: 4141461 (1979-02-01), La Chance

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