Motorized sequencing switch assembly
First Claim
Patent Images
1. A sequencing switch assembly comprising:
- (a) housing structure including motor means mounted thereon;
(b) a cam rotatably mounted on said housing means, said cam having a plurality of first cam tracks thereon and at least one second cam track thereon;
(c) drive means operatively connected to said motor means for effecting rotary movement of said cam in a forward direction and a reverse direction;
(d) a plurality of switches each including cam follower means and disposed for actuation by contacting one of said plurality of first cam tracks upon rotation of said cam in said forward direction; and
,(e) lift means operative upon rotation of said cam in said reverse direction, for lifting certain ones of said switches from contacting said cam tracks.
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Accused Products
Abstract
A rotary cam actuated sequence switch assembly having a reversible electric drive for forward and reverse movement to selectively position the cam for actuating a plurality of switches in a desired sequence under electronic control of the motor. Reverse rotation of the cam causes a flip-over follower to lift the blade contacts of the switch controlling line power to the remaining switches thereby preventing the reverse rotation from causing damage to the device being controlled by the switches.
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Citations
14 Claims
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1. A sequencing switch assembly comprising:
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(a) housing structure including motor means mounted thereon; (b) a cam rotatably mounted on said housing means, said cam having a plurality of first cam tracks thereon and at least one second cam track thereon; (c) drive means operatively connected to said motor means for effecting rotary movement of said cam in a forward direction and a reverse direction; (d) a plurality of switches each including cam follower means and disposed for actuation by contacting one of said plurality of first cam tracks upon rotation of said cam in said forward direction; and
,(e) lift means operative upon rotation of said cam in said reverse direction, for lifting certain ones of said switches from contacting said cam tracks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A switch sequencing assembly comprising:
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(a) housing structure; (b) a cam mounted for rotary movement on said housing structure; (c) motorized drive means disposed on said housing structure and operable in response to an electrical control signal to effect said rotary movement selectively in a forward and reverse direction; (d) a plurality of function control switches disposed on said housing structure; (e) cam follower means operative in response to said forward rotary movement of said cam for actuating and de-actuating said switches individually in sequence; and
,(f) lift means operative in response to said reverse rotary movement to disable certain ones of switch means. - View Dependent Claims (13, 14)
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Specification