Patent US4924172A successfully refreshed from Google Patents.
Patent US3767880A successfully refreshed from Google Patents.
US3767880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary switch with selectively limited positioning
Assignee: GTE Sylvania Inc
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Filing: 1972-08-14
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Granted: 1973-10-23
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Expires: 1992-08-14
Abstract
Abstract Rotary indexing switch which can be selectively limited for switching through one, two, three, or four positions. A disk is positioned between the base member and the knob of the switch mechanism. One of four spaced apart indentations in the disk is selected to engage a pin affixed to either the knob or the base member. A slot in the disk engages another pin affixed to whichever of the knob or base member does not have the first pin.
Inventors
- 👤 C Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:54
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/02; H01H19/03; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20732; Y10T74/20834; Y10T74/2084
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
189 words
A rotatable shaft mechanism having selectively limited angular positions including a base member; a shaft extending from said base member and mounted for rotary movement with respect thereto; a knob member fixed to said shaft; a plate disposed between the base member and the knob member and lying generally normal to said shaft, said plate having a central opening through which said shaft extends and having an arcuate opening therein; one of said members having a pin affixed thereto and extending into said arcuate opening; and locking means for selectively fixing the plate to the other of said members in different angular ralationships about the shaft whereby the possible angular positions of the knob member with respect to the base member are selectively limited; said locking means including a second pin fixed to the other of said members; and a plurality of pin receiving openings in said plate, each of which is adapted to receive said second pin, rotary movement between the plate and the other of said members being prevented by the pin abutting the walls of the pin receiving opening when the pin is in an opening.
Claim 2
Dependent Claim
189 words
A rotatable shaft mechanism having selectively limited angular positions including a base member; a shaft extending from said base member and mounted for rotary movement with respect thereto; a knob member fixed to said shaft; a plate disposed between the base member and the knob member and lying generally normal to said shaft, said plate having a central opening through which said shaft extends and having an arcuate opening therein; one of said members having a pin affixed thereto and extending into said arcuate opening; and locking means for selectively fixing the plate to the other of said members in different angular ralationships about the shaft whereby the possible angular positions of the knob member with respect to the base member are selectively limited; said locking means including a second pin fixed to the other of said members; and a plurality of pin receiving openings in said plate, each of which is adapted to receive said second pin, rotary movement between the plate and the other of said members being prevented by the pin abutting the walls of the pin receiving opening when the pin is in an opening.
Claim 3
Dependent Claim
72 words
A rotatable shaft mechanism in accordance with claim 1 wherein said plate is a circular disk; said pin receiving openings are a plurality of equally spaced indentations along the periphery of the disk, the plurality of indentations subtending a central angle of a particular value; and said arcuate opening lies along a circular arc having its center at the center of the shaft and subtends a central angle of said particular value.
Claim 4
Dependent Claim
29 words
A rotatable shaft mechanism in accordance with claim 2 wherein said first-mentioned pin is affixed to said base member; and said second pin is affixed to said knob member.
Claim 5
Dependent Claim
29 words
A rotatable shaft member in accordance with claim 2 wherein said first-mentioned pin is affixed to said knob member; and said second pin is affixed to said base member.
Claim 6
Dependent Claim
49 words
A rotatable shaft mechanism in accordance with claim 2 including a stop means for limiting rotation of said shaft in one direction whereby the amount of rotation of the shaft is selectively varied by selectively changing the fixed angular relationship between the plate and the other of said members.
Claim 7
Dependent Claim
52 words
A rotatable shaft mechanism in accordance with claim 5 including detent means for causing the shaft to index in a predetermined number of positions whereby the number of possible positions of the shaft is selectively varied by selectively changing the fixed angular relationship between the plate and the other of said members.
References Cited (Backward Citations)
US3430515A
Cited
US3561287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |