US3854080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical detenting apparatus
Assignee: Maurer Commercial Products Inc
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Filing: 1973-07-17
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Granted: 1974-12-10
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Expires: 1993-07-17
Abstract
Abstract Apparatus for electrically detenting an electrical motor in which actuation of an operator switch means is effective to activate a bistable switching device to a first state and thereby cause energizing potentials to be supplied to motor windings. In order to electrically detent the motor, the operator switch means is released to activate the bistable switching device to a second state which removes the energizing potentials supplied to motor windings and permits, through a detent circuit means, the energization of a single, predetermined winding. A translatable motor member, such as a rotor, is thus translated to a position in alignment with, and is detented at, the location of said predetermined winding.
Inventors
- 👤 J Bambara
- 👤 G Pellegrino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:05
CPC Classifications
H; H02; H02P; H02P6/00; H02P6/12; G; G03; G03B; G03B19/00; G03B19/18; G03B21/00; G03B21/14; G03B21/32
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
138 words
Apparatus for electrically detenting a translatable member of an electric motor having a plurality of windings at a position defined by the location of a predetermined one of said windings, comprising: bistable switching means having an output admitting of a first or second electrical state; commutating means responsive to the output of said bistable switching means admitting of aaid first electrical state for providing commutated output signals; drive means responsive to said commutated output signals for supplying energizing potentials to said windings; and detenting means coupled to the output of said bistable switching means for conditioning said drive means to supply an energizing potential to said predetermined winding when the output of said bistable switching means admits of said second electrical state to detent said translatable member at the position defined by the location of said predetermined winding.
Claim 2
Dependent Claim
138 words
Apparatus for electrically detenting a translatable member of an electric motor having a plurality of windings at a position defined by the location of a predetermined one of said windings, comprising: bistable switching means having an output admitting of a first or second electrical state; commutating means responsive to the output of said bistable switching means admitting of aaid first electrical state for providing commutated output signals; drive means responsive to said commutated output signals for supplying energizing potentials to said windings; and detenting means coupled to the output of said bistable switching means for conditioning said drive means to supply an energizing potential to said predetermined winding when the output of said bistable switching means admits of said second electrical state to detent said translatable member at the position defined by the location of said predetermined winding.
Claim 3
Dependent Claim
31 words
Apparatus as defined in claim 1 wherein said detenting means comprises capacitor means coupled to the output of said bistable switching means and to a means for supplying an electrical potential.
Claim 4
Dependent Claim
55 words
Apparatus as defined in claim 2 wherein said capacitor means is charged by said means for supplying said electrical potential when the output of said bistable switching means admits of said second electrical state and wherein said capacitor remains substantially uncharged when the output of said bistaBle switching means admits of said first electrical state.
Claim 5
Dependent Claim
36 words
Apparatus as defined in claim 3 wherein said drive means is additionally coupled to said capacitor means and is responsive to the charging of said capacitor means to supply said energizing potential to said predetermined winding.
Claim 6
Dependent Claim
38 words
Apparatus as defined in claim 1 further comprising mode control means coupled to said bistable switching means for selectively causing energizing potentials to be supplied to said fixed windings for a single cycle or for continuous motor operation.
Claim 7
Dependent Claim
49 words
Apparatus as defined in claim 5 further comprised of operator switch means admitting of first or second electrical states coupled to said bistable switching means, such that upon said operator switch means admitting of a first electrical state, said bistable switching means is activated to said first electrical state.
Claim 8
Dependent Claim
31 words
Apparatus as claimed in claim 6 further comprising detecting means responsive to translation of said translatable member for producing a stop control signal during each cycle of operation of said motor.
Claim 9
Dependent Claim
54 words
Apparatus as defined in claim 7 wherein said mode control means comprises switch means admitting of first or second electrical states and logic means responsive to said stop control signal and to said first electrical state of said switch means to detent translation of said translatable member within an initial cycle of motor operation.
Claim 10
Dependent Claim
63 words
Apparatus as defined in claim 8 wherein said logic means is coupled to said operator switch means and upon said mode control switch means admitting of said second electrical state and said operator switch means admitting of said first electrical state, said bistable switching means is activated to said first electrical state and said motor is placed in a continuous mode of operation.
Claim 11
Dependent Claim
66 words
Apparatus as defined in claim 9 wherein said logic means produce an output effective to activate said bistable switching means to said second electrical state upon said operator switch means admitting of said second electrical state and upon the application of said next succeeding stop control signal to said logic means whereby translation of said translatable member is detented within a single cycle of motor operation.
Claim 12
Dependent Claim
31 words
Apparatus as defined in claim 5 further comprising detecting means responsive to translation of said translatable member for producing a stop control signal during each cycle of operation of said motor.
Claim 13
Dependent Claim
55 words
Apparatus as defined in claim 11 wherein said detecting means comprises an optical disc adapted to be rotated by said motor interposed between means for producing radiation and radiation responsive means, said disc having an aperture therein for intermittently enabling the establishment of communication between said means for producing radiation and said radiation responsive means.
Claim 14
Dependent Claim
42 words
Apparatus as defined in claim 12 wherein said detecting means further comprises means coupled to said radiation responsive means for supplying a stop control signal to said mode control means in response to the incidence of radiation upon said radiation responsive means.
Claim 15
Dependent Claim
67 words
Apparatus as defined in claim 1 wherein said motor comprises a DC. brushless motor including commutation means having a plurality of outputs; and wherein said drive means comprises a plurality of switching means with the output of each switching means coupled to a corresponding one of said windings with the input of each switching means coupled to a corresponding one of the outputs of said commutation means.
Claim 16
Dependent Claim
24 words
Apparatus as defined in claim 14 wherein said commutation means includes a single input means coupled to the output of said bistable switch 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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |