US3715545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Momentary push button switch with improved non-conductive cam for normally retaining movable leaf spring contacts in a non-operative position
Assignee: Cherry Corp
•
Filing: 1971-06-18
•
Granted: 1973-02-06
•
Expires: 1991-06-18
Abstract
Abstract An electrical switch of the push-button type including an actuator movable through a switch housing, with the actuator providing a cam head which when in its original or unactuated position, physically separates the contact ends of the switch blades within the housing, thereby preventing undesirable closing of the switch resulting from shock, vibration, or teasing, while permitting a full actuating movement and harmless overtravel of the actuator so as to positively assure proper and complete switch blade closure.
Inventors
- 👤 E Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:37
CPC Classifications
H; H01; H01H; H01H15/00; H01H15/02; H01H15/06; H01H15/10; H01H15/102
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
208 words
An electric push-button switch comprising a. a hollow housing including an actuator reciprocally movable therethrough, b. means within said hollow housing for yieldably resisting movement of the actuator in one direction therethrough, c. a stationary contact plate carried in a fixed position within said housing and extending in a plane parallel to the movement of the actuator therethrough, d. a switch blade within said housing and having one end normally biased into closed contact position with said stationary contact plate, e. mans provided by said actuator in contact with said switch blade and movable between it and said stationary contact plate and restraining said switch blade against movement into contact with said stationary contact plate when said actuator is in its yieldably held position by said first-mentioned means, f. guide means carried by said actuator and cooperating with elongated slots provided in certain sides of the housing and extending longitudinally of said stationary contact and said switch blade for directing the reciprocal movement of said actuator through said housing, g. and means on said switch blade in the path of movement of said actuator and cooperating therewith to restrain said switch blade from contact with said stationary contact plate when said actuator is in its yieldably held position.
Claim 2
Dependent Claim
208 words
An electric push-button switch comprising a. a hollow housing including an actuator reciprocally movable therethrough, b. means within said hollow housing for yieldably resisting movement of the actuator in one direction therethrough, c. a stationary contact plate carried in a fixed position within said housing and extending in a plane parallel to the movement of the actuator therethrough, d. a switch blade within said housing and having one end normally biased into closed contact position with said stationary contact plate, e. mans provided by said actuator in contact with said switch blade and movable between it and said stationary contact plate and restraining said switch blade against movement into contact with said stationary contact plate when said actuator is in its yieldably held position by said first-mentioned means, f. guide means carried by said actuator and cooperating with elongated slots provided in certain sides of the housing and extending longitudinally of said stationary contact and said switch blade for directing the reciprocal movement of said actuator through said housing, g. and means on said switch blade in the path of movement of said actuator and cooperating therewith to restrain said switch blade from contact with said stationary contact plate when said actuator is in its yieldably held position.
Claim 3
Dependent Claim
208 words
An electric push-button switch comprising a. a hollow housing including an actuator reciprocally movable therethrough, b. means within said hollow housing for yieldably resisting movement of the actuator in one direction therethrough, c. a stationary contact plate carried in a fixed position within said housing and extending in a plane parallel to the movement of the actuator therethrough, d. a switch blade within said housing and having one end normally biased into closed contact position with said stationary contact plate, e. mans provided by said actuator in contact with said switch blade and movable between it and said stationary contact plate and restraining said switch blade against movement into contact with said stationary contact plate when said actuator is in its yieldably held position by said first-mentioned means, f. guide means carried by said actuator and cooperating with elongated slots provided in certain sides of the housing and extending longitudinally of said stationary contact and said switch blade for directing the reciprocal movement of said actuator through said housing, g. and means on said switch blade in the path of movement of said actuator and cooperating therewith to restrain said switch blade from contact with said stationary contact plate when said actuator is in its yieldably held position.
Claim 4
Dependent Claim
208 words
An electric push-button switch comprising a. a hollow housing including an actuator reciprocally movable therethrough, b. means within said hollow housing for yieldably resisting movement of the actuator in one direction therethrough, c. a stationary contact plate carried in a fixed position within said housing and extending in a plane parallel to the movement of the actuator therethrough, d. a switch blade within said housing and having one end normally biased into closed contact position with said stationary contact plate, e. mans provided by said actuator in contact with said switch blade and movable between it and said stationary contact plate and restraining said switch blade against movement into contact with said stationary contact plate when said actuator is in its yieldably held position by said first-mentioned means, f. guide means carried by said actuator and cooperating with elongated slots provided in certain sides of the housing and extending longitudinally of said stationary contact and said switch blade for directing the reciprocal movement of said actuator through said housing, g. and means on said switch blade in the path of movement of said actuator and cooperating therewith to restrain said switch blade from contact with said stationary contact plate when said actuator is in its yieldably held position.
Claim 5
Dependent Claim
64 words
An electrical push-button switch as defined by claim 1 wherein said means carried by the base plate within the hollow housing for yieldably resisting movement of the actuator in one direction comprises a coil spring, and further defined by having means on said base plate and on the actuator for maintaining said coil spring in axial alignment with the longitudinal axis of the actuator.
Claim 6
Dependent Claim
63 words
An electrical push-button switch as defined by claim 1 wherein said means on the actuator in contact with said one end of said switch blade and restraining it against movement in contact with said stationary contact plate, comprises cam surfaces which extend transversely to the longitudinal plane of the actuator and to either side of the longitudinal edges of said stationary contact plate.
Claim 7
Dependent Claim
45 words
An electrical push-button switch as defined by claim 1 wherein said means provided by said switch blade in the path of movement of said restraining means provided by the actuator comprises formed distal end members extending laterally from opposite longitudinal edges of said switch blade.
Claim 8
Dependent Claim
59 words
An electrical push-button switch as defined by claim 3 wherein said means provided by said switch blade in the path of movement of said cam surfaces provided by the actuator comprises formed distal end members extending laterally from the longitudinal edges of said switch blade and inTo the path of movement of said cam surfaces provided by the actuator.
Claim 9
Dependent Claim
36 words
An electrical push-button switch as defined by claim 1 further defined by the inclusion of guide means between the hollow housing and the actuator for guiding the actuator during its reciprocal movement into the hollow housing.
Claim 10
Dependent Claim
32 words
An electrical push-button switch as defined by claim 5 further including guide means between the hollow housing and the actuator for guiding the actuator during its reciprocal movement into the hollow housing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |