US3582579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stepping assembly and circuit
Assignee: Oak Electro Netics Corp
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Filing: 1969-05-22
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Granted: 1971-06-01
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Expires: 1989-05-22
Abstract
Abstract An intervalometer uses a rotary switch mounted to a base through shafts which maintain concentricity. An offset stepping mechanism drives the switch under control of a drive energizing circuit having interrupter contacts on the switch. A load energizing circuit includes additional contacts on the switch for sequentially energizing a plurality of independent loads, while shunting all nonenergized loads. Separate switch sections separate the drive energizing circuit from the load energizing circuit. When the switch is in a home position, it must be manually rotated to another position before automatic sequential stepping can occur.
Inventors
- 👤 Frederick M Ford
- 👤 Raymond J Silhavy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:29
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/26; H01H3/32; H01H3/34; H01H51/00; H01H51/02; H01H51/04; H01H51/06; H01H51/08; H01H51/082; H01H51/086
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
216 words
A rotary stepping assembly, comprising: a drive assembly for reciprocating a member along a path for each actuation of the drive assembly; a stationary assembly having a base including at least one elongated shaft permanently fixed to said base and extending outward therefrom, said shaft having guide means along at least its extended outer portion; means mounting said drive assembly to said base; a rotary assembly including stator means having stator contact means thereon, rotor means mounted for rotation with respect to said stator means and including rotor contact means aligned for contact with said stator contact means at different rotary positions of said rotor means, means for converting reciprocating movement into stepwise rotary movement of said rotor means with respect to said stator means, said stator means further including first surface means abutting said stationary assembly, second surface means adjacent the extended outer portion of said shaft, and channel means defining an opening between said first and second surface means and through which said shaft extends; fastening means connected to said guide means and abutting said second surface means for clamping said stator means to said stationary assembly; and link means connected between said drive assembly member and said rotary assembly converting means for causing stepwise rotary movement for each actuation of said drive assembly.
Claim 2
Dependent Claim
216 words
A rotary stepping assembly, comprising: a drive assembly for reciprocating a member along a path for each actuation of the drive assembly; a stationary assembly having a base including at least one elongated shaft permanently fixed to said base and extending outward therefrom, said shaft having guide means along at least its extended outer portion; means mounting said drive assembly to said base; a rotary assembly including stator means having stator contact means thereon, rotor means mounted for rotation with respect to said stator means and including rotor contact means aligned for contact with said stator contact means at different rotary positions of said rotor means, means for converting reciprocating movement into stepwise rotary movement of said rotor means with respect to said stator means, said stator means further including first surface means abutting said stationary assembly, second surface means adjacent the extended outer portion of said shaft, and channel means defining an opening between said first and second surface means and through which said shaft extends; fastening means connected to said guide means and abutting said second surface means for clamping said stator means to said stationary assembly; and link means connected between said drive assembly member and said rotary assembly converting means for causing stepwise rotary movement for each actuation of said drive assembly.
Claim 3
Dependent Claim
94 words
The rotary stepping assembly of claim 1 wherein said base comprises a plate having a lower surface defining a flat plane and an upper surface with a boss raised upward therefrom, said rotor means includes a rotor shaft and means mounting said rotor contact means for movement with said rotor shaft, said boss includes a circular aperture of greater diameter than the diameter of said rotor shaft, and means mounting said rotor shafT for rotatable movement within said circular aperture but with said rotor shaft being raised above said flat plane of said plate.
Claim 4
Dependent Claim
55 words
The rotary stepping assembly of claim 2 wherein said rotor shaft has an end portion extending upward from the upper surface of said plate, said rotary assembly includes indicator means mounted to said end portion and manually actuable for stepwise rotating said rotor shaft independent of stepwise movement produced by actuation of said drive assembly.
Claim 5
Dependent Claim
91 words
The rotary stepping assembly of claim 1 wherein said converting means includes a ratchet plate fixed with respect to said rotor means, said link means including a pawl engageable with said ratchet plate for converting reciprocating movement of the link means into rotary movement of the ratchet plate, and spring means connected between said link means and said stator means and compressible upon movement of said link means caused by actuation of said reciprocal drive assembly so that expansion of said spring means returns said link means to a rest position.
Claim 6
Dependent Claim
39 words
The rotary stepping assembly of claim 1 wherein the guide means on said elongated shaft comprises a screw, said fastening means comprising a nut member threaded onto said screw so as to clamp said stator means against said base.
Claim 7
Dependent Claim
90 words
The rotary stepping assembly of claim 5 wherein said elongated shaft includes a portion adjacent said base and a portion of reduced diameter extending upward from said first portion, the surface of said elongated shaft between said first portion and said reduced portion forming a shoulder lying in a plane normal to the axis of said elongated screw, said first surface means abutting said shoulder and said nut member abutting said second surface means for clamping said stator means to said stationary assembly in a position elevated above the base.
References Cited (Backward Citations)
US3405376A
Cited
US3384728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |