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US 4,400,685 AGranted
Control system
AssigneeEmhart Industries, Inc.
InventorBenjamin F. Chestnut
Life of this patent
Estimating the term…
Abstract
An electrical contact arm is spring biased against electrical paths by a coil spring which is carried on a hub of a rotating member which also carries the electrical arm. An electrically conductive path is also carried by the rotating member to provide switching functions.
Claims6
A combination of a switch and variable resistor comprising:
- (a) a housing,
- (b) at least four electrical terminals carried by said housing,
- (c) a resistance path and a collector path carried by said housing and individually electrically connected to two of said four electrical terminals,
- (d) a rotating member rotatably carried in said housing,
- (e) an electrical contact arm carried by said rotating member,
- (f) spring means carried by said rotating member and engaging said electrical contact arm to bias same against said resistance and collector paths, and
- (g) an electrically conductive path carried by said rotating member selectively engaging another two terminals of said four terminals to provide said switch.
4 more elements
Dependencies are inferred from the claim text.