US4101139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing bracket assembly for a submersible motor driven pump
Assignee: ITT Inc
•
Filing: 1977-04-04
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Granted: 1978-07-18
•
Expires: 1997-04-04
Abstract
Abstract An improved bearing bracket is provided for a submersible close-coupled motor and pump wherein the bearing bracket supports an outer non-rotating ring of a ball bearing that rotatably supports the motor shaft at a location between the motor and pump. The bearing bracket sealingly supports two concentric non-rotating seal elements that engage a radially extending flange mounted on the end of the motor shaft to provide a seal between the pump and the motor housings. The space between the seal elements is connected to a reservoir for supplying a lubricating and cooling medium for the seal elements.
Inventors
- 👤 Dag Nordin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:23
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16C; F16C33/00; F16C33/72; F16C33/76; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2360/00; F16C2360/44; Y; Y10; Y10S; Y10S277/00; Y10S277/93
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
119 words
A bearing and seal assembly, comprising: a non-rotating bearing bracket; a ball bearing having an outer non-rotating ring mounted in the bearing bracket; a shaft; a socket fixedly attached to the shaft, said socket and shaft being rotatably supported by the inner rotating ring of the ball bearing; a pair of radially spaced concentric seal means on said socket; a pair of radially spaced concentric seal means on said bearing bracket for sealingly engaging the pair of spaced concentric seal means on said socket; a reservoir; and conduit means connecting said reservoir to the space between said seal means whereby lubricating and cooling medium may be provided from the reservoir to the space for lubricating and cooling the seals.
Claim 2
Dependent Claim
119 words
A bearing and seal assembly, comprising: a non-rotating bearing bracket; a ball bearing having an outer non-rotating ring mounted in the bearing bracket; a shaft; a socket fixedly attached to the shaft, said socket and shaft being rotatably supported by the inner rotating ring of the ball bearing; a pair of radially spaced concentric seal means on said socket; a pair of radially spaced concentric seal means on said bearing bracket for sealingly engaging the pair of spaced concentric seal means on said socket; a reservoir; and conduit means connecting said reservoir to the space between said seal means whereby lubricating and cooling medium may be provided from the reservoir to the space for lubricating and cooling the seals.
Claim 3
Dependent Claim
15 words
An assembly as described in claim 1 in which the seal means comprise mechanical seals.
Claim 4
Dependent Claim
16 words
An assembly as described in claim 1, wherein the seal means comprise non-rigid type seal members.
Claim 5
Dependent Claim
18 words
An assembly as described in claim 1, wherein the outer bearing ring is rigidly attached to the bracket.
Claim 6
Dependent Claim
30 words
An assembly as described in claim 1, wherein the socket is part of an electric motor and the assembly additionally comprises a pump including an impeller connected to the shaft.
Claim 7
Dependent Claim
17 words
An assembly as described in claim 5, wherein the reservoir is connected to the non-rotating bearing bracket.
Claim 8
Dependent Claim
26 words
An assembly as described in claim 5, wherein the reservoir is located remote from the bearing bracket to facilitate inspection of the lubricating and cooling medium.
Claim 9
Dependent Claim
33 words
An assembly as described in claim 1, wherein said socket encompasses the outermost end of the shaft and includes a radially extending flange upon which are formed the radially spaced concentric seal means.
References Cited (Backward Citations)
US2032817A
Cited
US2245281A
Cited
US2267994A
Cited
FR880243A
Cited
US2641515A
Cited
US2721747A
Cited
US3037458A
Cited
US3122373A
Cited
US3162451A
Cited
US3395645A
Cited
US3591188A
Cited
US3934311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |