US5313129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve bearing ground lead for motors
Assignee: Ametek Inc
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Filing: 1993-08-05
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Granted: 1994-05-17
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Expires: 2013-08-05
Abstract
Abstract A ground lead connection is provided to electrically ground a motor armature shaft. In one embodiment the device has a motor housing in which is mounted a bearing. An armature shaft is journaled in the bearing and a ground lead is attached to the bearing. The bearing is provided with a counter bore socket which receives a terminal from the ground lead. The terminal includes a ferrule and a plug which has flared fingers. When connected, the plug engages the bore of the socket and the fingers engage the counter bore to permanently prevent removal of the terminal from the socket. The shaft is thereby grounded via the bearing without the need for numerous parts.
Inventors
- 👤 Timothy J. Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:39
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/22; H02K5/225; H02K11/00; H02K11/40; H02K5/16; H02K5/167; H02K5/1672
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
71 words
In a ground lead connection for a motor, the improvement, comprising: a motor housing; a sleeve bearing mounted in said housing, said sleeve bearing having a socket comprising a bore and a counter bore concentric with said bore, said counter bore forming a seat relative to said bore; an armature shaft journaled in said bearing; and grounding means for said armature shaft received within said socket and connected to said bearing.
Claim 2
Dependent Claim
71 words
In a ground lead connection for a motor, the improvement, comprising: a motor housing; a sleeve bearing mounted in said housing, said sleeve bearing having a socket comprising a bore and a counter bore concentric with said bore, said counter bore forming a seat relative to said bore; an armature shaft journaled in said bearing; and grounding means for said armature shaft received within said socket and connected to said bearing.
Claim 3
Dependent Claim
23 words
The improvement in a ground lead connection as recited in claim 1, wherein said grounding means comprises an insulated wire and a terminal.
Claim 4
Dependent Claim
40 words
The improvement in a ground lead connection as recited in claim 2, wherein said terminal comprises a ferrule and a plug, said plug having a plurality of flared fingers projecting therefrom and said ferrule has at least one flared stop.
Claim 5
Dependent Claim
34 words
The improvement in a ground lead connection as recited in claim 3, wherein said terminal is inserted in said socket, said plug engages said bore, and said fingers engage said seat, permanently preventing removal.
Claim 6
Dependent Claim
124 words
In a ground lead connection for a motor, the improvement, comprises: a motor housing; a sleeve bearing mounted in said motor housing, said sleeve bearing having a socket comprising a bore and a counter bore concentric with said bore, said counter bore forming a seat relative to said bore; an armature shaft journaled in said sleeve bearing; and grounding means comprising an insulated electric wire and a terminal, said terminal engaging said socket to ground said shaft, said terminal comprising a ferrule and a plug, said plug having a plurality of flared fingers, and said ferrule having at least one flared stop, said plug engaging said bore and said fingers of said seat whereby removal of said terminal from said socket is permanently prevented.
Claim 7
Dependent Claim
124 words
In a ground lead connection for a motor, the improvement, comprises: a motor housing; a sleeve bearing mounted in said motor housing, said sleeve bearing having a socket comprising a bore and a counter bore concentric with said bore, said counter bore forming a seat relative to said bore; an armature shaft journaled in said sleeve bearing; and grounding means comprising an insulated electric wire and a terminal, said terminal engaging said socket to ground said shaft, said terminal comprising a ferrule and a plug, said plug having a plurality of flared fingers, and said ferrule having at least one flared stop, said plug engaging said bore and said fingers of said seat whereby removal of said terminal from said socket is permanently prevented.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-16 | 1997-11-15 | 1998-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-16 | 2001-11-15 | 2002-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-16 | 2005-11-15 | 2006-05-17 | $7700.00 | Window Closed / Lapsed |