US3846838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selection device
Assignee: Mitsubishi Electric Corp
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Filing: 1969-07-22
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Granted: 1974-11-05
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Expires: 1989-07-22
Abstract
Abstract An astable multivibrator provides a drive signal for reciprocating an electrically operated plunger to which rotates a controlled member. One stationary contact is provided for each of the positions where the controlled member is to be selectively stopped, and when a movable contact rotating along with the controlled member reaches a selected one of the stationary contacts the multivibrator is deenergized to stop rotation of the controlled member at its particular position corresponding to the selected contact.
Inventors
- 👤 H Okamoto
- 👤 M Sato
- 👤 S Kusaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:52
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/34; G11B5/00; G11B5/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
A selection device comprising, in combination, a controlled member for being selectively set to any one of a plurality of predetermined positions, an astable multivibrator having an output terminal for producing an alternating output signal, a plurality of selection switch contacts one for each of the predetermined positions of said controlled member, means connecting said selection contacts to said multivibrator, contact means for selective engagement with any one of said selection contacts to cause energization of said multivibrator, electrically actuated rotatable driving means coupled to said multivibrator output terminal for advancing said controlled member sequentially from one position to the next in response to each alternation of the output signal, a rotatable switch contact, means mounting said rotatable switch contact for sequentially sweeping said selection switch contacts, and means coupling said rotatable switch contact to said multivibrator for deenergizing said multivibrator when said rotatable switch contact closes against one of said selection contacts engaged by said contact means.
Claim 2
Dependent Claim
158 words
A selection device comprising, in combination, a controlled member for being selectively set to any one of a plurality of predetermined positions, an astable multivibrator having an output terminal for producing an alternating output signal, a plurality of selection switch contacts one for each of the predetermined positions of said controlled member, means connecting said selection contacts to said multivibrator, contact means for selective engagement with any one of said selection contacts to cause energization of said multivibrator, electrically actuated rotatable driving means coupled to said multivibrator output terminal for advancing said controlled member sequentially from one position to the next in response to each alternation of the output signal, a rotatable switch contact, means mounting said rotatable switch contact for sequentially sweeping said selection switch contacts, and means coupling said rotatable switch contact to said multivibrator for deenergizing said multivibrator when said rotatable switch contact closes against one of said selection contacts engaged by said contact means.
Claim 3
Dependent Claim
58 words
A selection device as set forth in claim 1, in whiCh said electrically actuated rotatable driving means comprises a solenoid having a reciprocating plunger, a ratchet and shaft combination for stepped rotation by said plunger, and a cam mounted on said shaft, and in which said controlled member comprises a channel head having advancement means engaging said cam.
Claim 4
Dependent Claim
32 words
A selection device as set forth in claim 1, in which said contact means is connected to a reference potential and said rotatable switch contact is connected to said multivibrator output terminal.
Claim 5
Dependent Claim
199 words
A selection device comprising, in combination, a rotatable controlled member for being selectively set to any one of a plurality of predetermined rotative positions, a plurality of selection switch contacts one for each of the predetermined positions of said controlled member, means for selectively connecting any one of said contacts to a reference potential, an astable multivibrator having an output terminal for producing an alternating output signal, means for connecting said multivibrator to said selection contacts for energization of said multivibrator in response to selective connection of one of said contacts to the reference potential, electrically actuated rotatable driving means coupled to said multivibrator output terminal for advancing said controlled member sequentially from one said predetermined position to the next in response to each alternation of said output signal, a plurality of fixed switch contacts connected respectively to said selection switch contacts, a rotatable switch contact, means mounting said rotatable switch contact for sequential sweeping of said fixed contacts upon advancement of said controlled member, and means connecting said rotatable switch contact to said multivibrator for deenergizing said multivibrator when said rotatable contact engages one of said fixed contacts connected to the reference potential through its respective selection contact.
Claim 6
Dependent Claim
199 words
A selection device comprising, in combination, a rotatable controlled member for being selectively set to any one of a plurality of predetermined rotative positions, a plurality of selection switch contacts one for each of the predetermined positions of said controlled member, means for selectively connecting any one of said contacts to a reference potential, an astable multivibrator having an output terminal for producing an alternating output signal, means for connecting said multivibrator to said selection contacts for energization of said multivibrator in response to selective connection of one of said contacts to the reference potential, electrically actuated rotatable driving means coupled to said multivibrator output terminal for advancing said controlled member sequentially from one said predetermined position to the next in response to each alternation of said output signal, a plurality of fixed switch contacts connected respectively to said selection switch contacts, a rotatable switch contact, means mounting said rotatable switch contact for sequential sweeping of said fixed contacts upon advancement of said controlled member, and means connecting said rotatable switch contact to said multivibrator for deenergizing said multivibrator when said rotatable contact engages one of said fixed contacts connected to the reference potential through its respective selection contact.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |