US3745352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation sensitive solid state switch
Assignee: Individual
•
Filing: 1970-10-21
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Granted: 1973-07-10
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Expires: 1990-10-21
Abstract
Abstract A mechanically operable solid state switch particularly suited for use in achieving a variable circuit-switching function in an environment wherein ''''bounce'''' and ''''arcing'''' between switch contacts are to be avoided, characterized by an annular array of photo-responsive switching devices, disposed in communication with an included source of radiation, and a plurality of interchangeable, mechanically operable interrupter disks, each having a predetermined pattern of transparent and opaque portions and adapted to be interposed in a masking relationship between the source of radiation and the array of photo-responsive devices, whereby an operative displacement of each disk serves to MAKE and BREAK selected electrical circuits through the photoresponsive devices of said array in sequences dictated by said pattern of the opaque and transparent portions of the interrupter.
Inventors
- 👤 G Low
- 👤 R Hutto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:45
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/968
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
193 words
A manually operable, solid-state switch comprising: A. an elongated body of synthetic resin including a recess of a cylindrical configuration formed within one end thereof; B. a plurality of photo-conductive elements seated in said body adjacent to said recess circumferentially spaced at equidistances in a substantially uniform annular array circumscribing a concentrically related longitudinal axis of symmetry for said body; C. a source of light common to said plurality of devices disposed adjacent to said recess for simultaneously propagating a beam of light toward each device of said plurality of photoconductive elements; D. a masking disk supported between said source of light and said array including an opaque portion defining a mask of preselected dimensions; E. a rotatable shaft extended concentrically through said body supporting said disk at one end thereof in a manner such that the opaque portion is rotatably displaced simultaneously with said shaft into a selected masking relationship relative to selected photo-conductive elements, the number thereof being determined by the dimensions of said mask; and F. a manually rotatabLe knob affixed to said shaft at the end thereof opposite said disk through which rotation is manually imparted to said shaft.
Claim 2
Dependent Claim
193 words
A manually operable, solid-state switch comprising: A. an elongated body of synthetic resin including a recess of a cylindrical configuration formed within one end thereof; B. a plurality of photo-conductive elements seated in said body adjacent to said recess circumferentially spaced at equidistances in a substantially uniform annular array circumscribing a concentrically related longitudinal axis of symmetry for said body; C. a source of light common to said plurality of devices disposed adjacent to said recess for simultaneously propagating a beam of light toward each device of said plurality of photoconductive elements; D. a masking disk supported between said source of light and said array including an opaque portion defining a mask of preselected dimensions; E. a rotatable shaft extended concentrically through said body supporting said disk at one end thereof in a manner such that the opaque portion is rotatably displaced simultaneously with said shaft into a selected masking relationship relative to selected photo-conductive elements, the number thereof being determined by the dimensions of said mask; and F. a manually rotatabLe knob affixed to said shaft at the end thereof opposite said disk through which rotation is manually imparted to said shaft.
Claim 3
Dependent Claim
21 words
The switch of claim 1 wherein each of said photo-sensitive devices comprises a photo-conductive element operatively coupled within an electrical circuit.
Claim 4
Dependent Claim
35 words
The switch of claim 2 wherein the opaque portion of the disk is so dimensioned as to mask a single photo-conductive element prior to unmasking an adjacent photo-conductive element as said disk operatively is rotated.
Claim 5
Dependent Claim
34 words
The switch of claim 2 wherein the opaque portion of said disk is so dimensioned as to unmask one of said photo-conductive elements before masking an adjacent photo-conductive element as said disk is rotated.
Claim 6
Dependent Claim
22 words
The switch of claim 2 wherein said opaque portion is so dimensioned as to simultaneously mask all but a single photo-conductive element.
Claim 7
Dependent Claim
22 words
The switch of claim 2 wherein said opaque portion is so dimensioned as to simultaneously mask all but two adjacent photo-conductive elements.
Claim 8
Dependent Claim
20 words
The switch of claim 2 wherein said opaque portion is so dimensioned as to simultaneously mask a single photo-conductive element.
Claim 9
Dependent Claim
20 words
The switch of claim 2 wherein said opaque portion is so dimensioned as to simultaneously mask two adjacent photo-conductive elements.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |