US3798504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for shutting off drive motors of rotating machine parts in case of overload and/or destruction of a machine part
Assignee: Uranit GmbH
•
Filing: 1972-03-27
•
Granted: 1974-03-19
•
Expires: 1992-03-27
Abstract
Abstract An installation for shutting off the drive motors of rotating machine parts in case of overload or short-circuit by extending the power supply wires between the stator winding of the motor and a connector plug, loop-shaped in a boss protruding into the space accommodating the rotating machine part so that the power supply wires are broken when the boss is sheared off upon mechanical failure of the machine part; in case of short-circuit, fuses connected into the power supply circuit ahead of the connector plug will also open the power supply circuit.
Inventors
- 👤 O Kreissl
- 👤 E Pritsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:25
CPC Classifications
H; H02; H02H; H02H5/00; H02H5/10; F; F16; F16P; F16P7/00; F16P7/02; H02K; H02K11/00; H02K11/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A device for automatically stopping a drive motor of a rotating member in the event of a least one of an overload and rotational destruction of the rotating member comprising a rotating member, an electric drive motor for rotating said member about an axis of rotation, power supply wires connecting a stator winding of said motor to a connector plug, a pin-like boss means disposed adjacent to a rotating portion of said member and a loop-like arrangement of said power supply wires disposed in said boss means wherein in the event of rotational destruction of the rotating member the boss means is sheared off whereby said powersupply wires are broken.
Claim 2
Independent Claim
110 words
A device for automatically stopping a drive motor of a rotating member in the event of a least one of an overload and rotational destruction of the rotating member comprising a rotating member, an electric drive motor for rotating said member about an axis of rotation, power supply wires connecting a stator winding of said motor to a connector plug, a pin-like boss means disposed adjacent to a rotating portion of said member and a loop-like arrangement of said power supply wires disposed in said boss means wherein in the event of rotational destruction of the rotating member the boss means is sheared off whereby said powersupply wires are broken.
Claim 3
Dependent Claim
22 words
An installation according to claim 1 characterized in that the boss means forms part of a winding sealing for the stator winding.
Claim 4
Dependent Claim
28 words
A device according to claim 1, further comprising fuse means operatively connected to the power supply wires whereby in the event of an overload said motor is stopped.
Claim 5
Dependent Claim
20 words
A device according to claim 1, wherein said boss means is disposed laterally adjacent said rotating portion of said member.
Claim 6
Dependent Claim
25 words
A device according to claim 3, wherein said fuse means are disposed in said power supply wires between said connector plug and a power source.
Claim 7
Dependent Claim
27 words
A device according to claim 1, wherein said boss means is disposed in a chamber formed between said rotating portion of said member and an outer housing.
References Cited (Backward Citations)
US1492022A
Cited
US2436042A
Cited
US2623962A
Cited
DE922130C
Cited
US3175124A
Cited
US3293463A
Cited
US3308316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |