US 3,980,844 A · Combination lock and switch device

Abstract

A combination lock and switch device includes, a housing, a bolt slidably mounted for movement in one side of said housing, a locking dog in the housing connected to the portion of the bolt disposed therein for sliding the same between the locked and unlocked positions, a dial on the exterior of said housing fixedly connected to a shaft disposed for rotatable movement by said dial in a clockwise and counter clockwise direction, and tumblers on said shaft each having a peripheral notch therein so that on rotation of said shaft the peripheral notches will align and coact with said locking dog to move the locking dog and bolt connected thereto to and from the locked and unlocked positions. The first of said tumblers having, a second peripheral notch a predetermined distance from the first peripheral notch to provide an alternate combination of aligned peripheral notches for coaction with the locking dog, and electrical switch means including a commutator bushing on said first tumbler, and contact means on said commutator bushing extending into the second peripheral notch for operative contact by the locking dog when the alternate combination of peripheral notches are aligned with each other.

Claims5

Dependent claims

A combination lock and switch device including,

a. a housing,
b. a plurality of tumblers in said housing adapted to be rotated in accordance with a given combination,
c. each of said plurality of tumblers having at least one notch in the peripheral edge thereof,
d. means to rotate said tumblers relative to each other according to a given first combination to bring the respective peripheral notches into alignment with each other,
e. a locking dog disposed to coact with said aligned peripheral notches according to said first combination,
f. one of said tumblers having a second notch in the periphery spaced an angular distance from the first notch therein,
g. each of said plurality of tumblers adapted to be aligned according to a second combination so as to bring the peripheral notches of the tumblers into alignment with the second notch on said one tumbler and to permit coaction with said locking dog in the aligned position for the second combination and,
h. switch means operatively associated with said second notch in said one tumbler and with the locking dog when said plurality of tumblers are aligned in the second combination position whereby said switch means can actuate an associated electrical system.

5 more elements

Dependencies are inferred from the claim text.

Combination lock and switch device

Life of this patent

Combination lock and switch device

Life of this patent

Abstract

Claims5