US3703620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pull switch with housing portions of different diameters and switch contact mode at the interface of said portions
Assignee: Stanley Electric Co Ltd
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Filing: 1971-05-17
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Granted: 1972-11-21
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Expires: 1991-05-17
Abstract
Abstract A switching device comprising an electrically insulating movable element included in an insulating housing together with a spring member, an insulating stationary element inserted in an opening of the housing so that it normally contacts the movable element, a pair of contact terminals provided on the stationary element to be brought into contact with a contact on the movable element, and an outer cable incorporated with an inner cable, running through the movable element and the stationary element, for acting on the movable element from the stationary-element side. The insulating stationary element is located in a large diameter portion of the housing but abuts a shoulder forming the interface between the large diameter portion and a smaller diameter portion.
Inventors
- 👤 Kazue Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:21
CPC Classifications
H; H01; H01H; H01H17/00; B; B62; B62J; B62J6/00; B62J6/16; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20408; Y10T74/2042; Y10T74/20426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
217 words
A switching device comprising: an insulating housing having a cylindrical chamber therein, said chamber having a first portion of predetermined diameter and predetermined length and a second portion of a second predetermined diameter greater than said first predetermined diameter so as to define a step shoulder at the juncture of said first and second portion of said chamber; a cylindrical insulating stationary element positioned in said second portion of said chamber against said stepped shoulder, one end of said stationary element which is adjacent to said first portion of said chamber carrying a pair of spaced apart contact element; a cylindrical insulating movable element having a length less than said predetermined length of said first portion of said chamber, said movable element slidably positioned within said first portion of said chamber between a first position in which a contact carried thereby is in engagement with said pair of spaced apart contacts and a second position in which said contact is out of engagement with said pair of spaced apart contacts; biasing means positioned within said housing for urging said movable element toward its first position; and cable means passing through said housing, said movable element and said stationary element for selectively moving said movable element toward its said second position against the bias of said biasing means.
Claim 2
Dependent Claim
217 words
A switching device comprising: an insulating housing having a cylindrical chamber therein, said chamber having a first portion of predetermined diameter and predetermined length and a second portion of a second predetermined diameter greater than said first predetermined diameter so as to define a step shoulder at the juncture of said first and second portion of said chamber; a cylindrical insulating stationary element positioned in said second portion of said chamber against said stepped shoulder, one end of said stationary element which is adjacent to said first portion of said chamber carrying a pair of spaced apart contact element; a cylindrical insulating movable element having a length less than said predetermined length of said first portion of said chamber, said movable element slidably positioned within said first portion of said chamber between a first position in which a contact carried thereby is in engagement with said pair of spaced apart contacts and a second position in which said contact is out of engagement with said pair of spaced apart contacts; biasing means positioned within said housing for urging said movable element toward its first position; and cable means passing through said housing, said movable element and said stationary element for selectively moving said movable element toward its said second position against the bias of said biasing means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |