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US 4,309,683 AGranted
Electric control device
AssigneeWestinghouse Electric Corp.
InventorsKurt A. Grunert, John J. Dauer, Jr., Birch L. DeVault
Life of this patent
Estimating the term…
Abstract
This invention provides a novel and unique electric control device which utilizes a new auxiliary contact device. This new auxiliary contact device has a contact-carrying structure that is directly engaged with the operating mechanism of the electric control device whereby the operating mechanism directly moves the auxiliary contact device to all operating positions eliminating any requirement for biasing the auxiliary contacts into any normal position.
Claims2
An electric control device, comprising:
- (a) a base;
- (b) a first insulating housing mounted on the base;
- (c) a control mechanism supported on the housing;
- (d) the control mechanism comprising a first stationary and movable contact combination;
- (e) the first stationary and movable contact combination being disposed to open and close an electric circuit;
- (f) operating means disposed to open and close the first stationary and movable contact combination between the opened and closed operating positions;
- (g) the operating means comprising a coil and armature combination;
- (h) the operating means further comprising a first insulating contact-carrying structure mounted generally upon the armature;
- (i) the first stationary contact is generally mounted upon the first insulating housing;
- (j) the first movable contact is generally mounted upon the first insulating contact-carrying structure whereby upon energization of the coil, the armature is disposed to move the first insulating contact-carrying structure to carry the first movable contact into engagement with the first stationary contact to open and close an electric circuit;
- and
- (h) an auxiliary contact device comprising a second insulating housing mounted generally upon the first insulating housing;
- a second stationary contact and movable contact combination being disposed generally within the second insulating housing;
- a second insulating contact-carrying structure whereby the second movable contact is generally mounted thereon;
- the second insulating contact-carrying structure is disposed to carry the second movable contact into engagement with the second stationary contact to open and close an electric circuit;
- and connecting means for connecting the first insulating contact-carrying structure to the second insulating contact-carrying structure whereby operating motion of the first insulating contact-carrying structure causes operating motion of the second insulating contact-carrying structure.
13 more elements
Dependencies are inferred from the claim text.