Patent US4679875A successfully refreshed from Google Patents.
US4679875A
Expired / Lapsed
US
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Attachment of electric cable to submergible pump motor heads
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1985-12-09
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Granted: 1987-07-14
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Expires: 2005-12-09
Abstract
Abstract The end of an electric cable for energizing the motor of a submergible pump is attached to a motor head by a device comprising a rigid shell having a body of elastomeric material filling an end portion of the shell and projecting therefrom to form an insert. Conductors of the cable extend through the elastomeric material and have terminals that engage corresponding terminals within the motor housing. The body of elastomeric material is sealed in the shell, and the conductors are sealed in the body. The remainder of the shell is filled with strain relief material. The insert is tapered and has circumferential flexible ridges that engage and seal upon the cylindrical wall of a bore leading into the motor head. An integral circumferential bead on the body seals against the end of the shell and against a portion of the motor head surrounding an end of the bore.
Inventors
- 👤 Wayne H. Ramsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:08
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/523; H01R13/58
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
153 words
A device for attaching an end of an electric cable to the head of a motor or the like having an opening for receiving the device, said device comprisng a rigid shell with a body of elastomeric material filling an end portion of the shell and projecting therefrom to form an insert to be received in said opening, said cable having conductor means extending through said body and provided with terminal means at an end of said conductor means, said body being sealed within said shell and said conductor means being sealed within said body, said insert having an integral external peripheral bead abutting an end of said shell and having external peripheral ridge means for sealing said insert in said opening with said bead against a portion of said motor head surrounding said opening and with said terminal means positioned to engage cooperable terminal means of the motor head via said opening.
Claim 2
Independent Claim
153 words
A device for attaching an end of an electric cable to the head of a motor or the like having an opening for receiving the device, said device comprisng a rigid shell with a body of elastomeric material filling an end portion of the shell and projecting therefrom to form an insert to be received in said opening, said cable having conductor means extending through said body and provided with terminal means at an end of said conductor means, said body being sealed within said shell and said conductor means being sealed within said body, said insert having an integral external peripheral bead abutting an end of said shell and having external peripheral ridge means for sealing said insert in said opening with said bead against a portion of said motor head surrounding said opening and with said terminal means positioned to engage cooperable terminal means of the motor head via said opening.
Claim 3
Dependent Claim
25 words
A device in accordance with claim 1, wherein said body has an integral external peripheral ridge received in an internal peripheral groove of said shell.
Claim 4
Dependent Claim
38 words
A device in accordance with claim 1, wherein said conductor means comprises conductors extending through bores in said body of elastomeric material, the cross dimensions of said bores becoming smaller as said bores extend inwardly of said shell.
Claim 5
Dependent Claim
19 words
A device in accordance with claim 1, wherein said body of elastomeric material is molded onto said conductor means.
Claim 6
Dependent Claim
30 words
A device in accordance with claim 1, further comprising strain relief means filling a portion of said shell adjacent to said body of elastomeric material and surrounding said conductor means.
Claim 7
Dependent Claim
29 words
A device in accordance with claim 5, wherein said strain relief means comprises a material molded into said shell and engaging an end of said body of elastomeric material.
Claim 8
Dependent Claim
27 words
A device in accordance with claim 1, wherein said insert is tapered and has cross dimensions that become smaller as the insert projects away from said shell.
Claim 9
Dependent Claim
17 words
A device in accordance with claim 7, wherein said ridge means comprises a series of flexible ridges.
Claim 10
Dependent Claim
197 words
Apparatus comprising a motor head having an entry bore with an opening to the exterior of the motor head and having motor head terminal means, and a device for attaching an end of an electric cable to the motor head, said device comprising a rigid shell having a body of elastomeric material filling an end portion of the shell and projecting therefrom to form an insert, said body being sealed within said shell, said cable having electric conductor means extending through said body and sealed therein and provided with terminal means at an end of said conductor means, said insert having an integral external peripheral bead engaging an end of said shell and having integral external peripheral flexible ridge means, said insert being tapered, with smaller cross dimensions away from said shell, said bore in said motor head being straight-walled, said insert extending into said bore with the ridge means compressed by the bore and with the bead engaging a portion of said motor head extending about said opening, whereby said body of elastomeric material is sealed to said motor head, said motor head terminal means being engaged with the terminal means of said electric conductor means.
Claim 11
Dependent Claim
197 words
Apparatus comprising a motor head having an entry bore with an opening to the exterior of the motor head and having motor head terminal means, and a device for attaching an end of an electric cable to the motor head, said device comprising a rigid shell having a body of elastomeric material filling an end portion of the shell and projecting therefrom to form an insert, said body being sealed within said shell, said cable having electric conductor means extending through said body and sealed therein and provided with terminal means at an end of said conductor means, said insert having an integral external peripheral bead engaging an end of said shell and having integral external peripheral flexible ridge means, said insert being tapered, with smaller cross dimensions away from said shell, said bore in said motor head being straight-walled, said insert extending into said bore with the ridge means compressed by the bore and with the bead engaging a portion of said motor head extending about said opening, whereby said body of elastomeric material is sealed to said motor head, said motor head terminal means being engaged with the terminal means of said electric conductor means.
Claim 12
Dependent Claim
24 words
Apparatus in accordance with claim 9, wherein said body has an integral external peripheral ridge received in an internal peripheral groove of said shell.
Claim 13
Dependent Claim
15 words
Apparatus in accordance with claim 9, hwerein said ridge means comprises a series of ridges.
Claim 14
Dependent Claim
37 words
Apparatus in accordance with claim 9, wherein said conductor means comprises conductors extending through bores in said body of elastromeric material, the cross dimensions of said bores becoming smaller as said bores extend inwardly of said shell.
Claim 15
Dependent Claim
18 words
Apparatus in accordance with claim 9, wherein said body of elastomeric material is molded onto said conductor means.
Claim 16
Dependent Claim
29 words
Apparatus in accordance with claim 9, further comprising strain relief means filling a portion of said shell adjacent to said body of elastomeric material and surrounding said conductor means.
Claim 17
Dependent Claim
28 words
Apparatus in accordance with claim 14, wherein said strain relief means comprises a material molded into said shell and engaging an end of said body of elastomeric material.
References Cited (Backward Citations)
US2283117A
Cited
US2944297A
Cited
US3043903A
Cited
US3248582A
Cited
US3293463A
Cited
US3308316A
Cited
US3457866A
Cited
US3716309A
Cited
US3830955A
Cited
US4029382A
Cited
US4053196A
Cited
US4128735A
Cited
US4312553A
Cited
US4500151A
Cited
US4626721A
Cited
US4583804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-13 | 1991-01-12 | 1991-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-13 | 1995-01-12 | 1995-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-13 | 1999-01-12 | 1999-07-14 | $7700.00 | Window Closed / Lapsed |