US4427308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrokinetic spindle assembly
Assignee: Individual
•
Filing: 1982-02-01
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Granted: 1984-01-24
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Expires: 2002-02-01
Abstract
Abstract A hydrokinetic spindle including a housing having a bearing in which the journal portion of a shaft is mounted. The shaft has a helical groove having a progressively decreasing cross-section formed on the journal surface thereof and extending from one end of the journal portion to the other which picks up a predetermined amount of fluid lubricant from fluid pickup posts leading from at least one fluid reservoir formed in the housing and directs the lubricant to and upon the shaft under pressure thereby maintaining a film of fluid lubricant under pressure between the shaft and the bearing of the housing. The housing and shaft are sealed in an artificial atmosphere.
Inventors
- 👤 John R. Sandberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:05
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/106; F16C33/1065; F16C17/00; F16C17/02; F16C17/026
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
177 words
A hydrokinetic spindle comprising: (a) a housing, (b) a shaft having a first end and a second end, (c) means mounting said shaft in said housing for relative rotative motion between said housing and said shaft, (d) said housing including reservoir means for a lubricating fluid spaced radially outwardly of said shaft, (e) said shaft having a helical groove formed in the surface thereof and extending thereon and having a first end and a second end with the cross-section of the groove progressively decreasing from the first end of the groove to the second end of the groove, (f) means for conducting the lubricating fluid from said reservoir means to said first end of said helical groove and upon said shaft, (g) means for conducting the lubricating fluid from said second end of said helical groove and from upon said shaft to said reservoir means for creating hydraulic pressure in conducted lubricating fluid upon the shaft as relative rotation between said shaft and said housing occurs, and (h) means for sealing the lubricating fluid within the housing.
Claim 2
Dependent Claim
177 words
A hydrokinetic spindle comprising: (a) a housing, (b) a shaft having a first end and a second end, (c) means mounting said shaft in said housing for relative rotative motion between said housing and said shaft, (d) said housing including reservoir means for a lubricating fluid spaced radially outwardly of said shaft, (e) said shaft having a helical groove formed in the surface thereof and extending thereon and having a first end and a second end with the cross-section of the groove progressively decreasing from the first end of the groove to the second end of the groove, (f) means for conducting the lubricating fluid from said reservoir means to said first end of said helical groove and upon said shaft, (g) means for conducting the lubricating fluid from said second end of said helical groove and from upon said shaft to said reservoir means for creating hydraulic pressure in conducted lubricating fluid upon the shaft as relative rotation between said shaft and said housing occurs, and (h) means for sealing the lubricating fluid within the housing.
Claim 3
Dependent Claim
34 words
The device of claim 1, in which said means mounting said shaft in said housing includes a tubular formation connected to said housing and forming a bearing and in which said shaft is mounted.
Claim 4
Dependent Claim
41 words
The device of claim 2, in which said means for conducting a fluid from said reservoir means to said first end of said helical groove includes at least one outlet post from said reservoir means and communicating with said helical groove.
Claim 5
Dependent Claim
37 words
The device of claim 1, in which said means for conducting a lubricating fluid from said reservoir means to said first end of said helical groove includes at least one outlet post communicating with said helical groove.
Claim 6
Dependent Claim
42 words
The device of claim 4, in which said means for conducting a lubricating fluid from said second end of said helical groove to said reservoir means includes conduit means carried by said shaft communicating with said helical groove and said reservoir means.
Claim 7
Dependent Claim
42 words
The device of claim 1, in which said means for conducting a lubricating fluid from said second end of said helical groove to said reservoir means includes conduit means carried by said shaft communicating with said helical groove and said reservoir means.
Claim 8
Dependent Claim
195 words
A hydrokinetic spindle comprising: (a) a housing, (b) a shaft, (c) means mounting said shaft in said housing for relative rotative motion between said housing and said shaft, (d) said housing including reservoir means for a lubricating fluid spaced radially outwardly of said shaft, (e) said shaft having a helical groove formed in the surface thereof and extending thereon and having a first and second end for picking up a predetermined amount of lubricating fluid at a first portion of the shaft and directing the lubricating fluid to and upon the shaft under pressure to a second portion of the shaft, (f) means for conducting the lubricating fluid from said reservoir means to said first portion of said shaft and upon said shaft, (g) a thrust washer carried by said shaft with a spiral groove formed on a face of said washer for conducting the lubricating fluid from said second portion of said shaft and from upon said shaft to said reservoir means for creating hydraulic pressure in conducted lubricating fluid upon the shaft as relative rotation between said shaft and said housing occurs, and (h) means for sealing the lubricating fluid within the housing.
Claim 9
Dependent Claim
195 words
A hydrokinetic spindle comprising: (a) a housing, (b) a shaft, (c) means mounting said shaft in said housing for relative rotative motion between said housing and said shaft, (d) said housing including reservoir means for a lubricating fluid spaced radially outwardly of said shaft, (e) said shaft having a helical groove formed in the surface thereof and extending thereon and having a first and second end for picking up a predetermined amount of lubricating fluid at a first portion of the shaft and directing the lubricating fluid to and upon the shaft under pressure to a second portion of the shaft, (f) means for conducting the lubricating fluid from said reservoir means to said first portion of said shaft and upon said shaft, (g) a thrust washer carried by said shaft with a spiral groove formed on a face of said washer for conducting the lubricating fluid from said second portion of said shaft and from upon said shaft to said reservoir means for creating hydraulic pressure in conducted lubricating fluid upon the shaft as relative rotation between said shaft and said housing occurs, and (h) means for sealing the lubricating fluid within the housing.
Claim 10
Dependent Claim
40 words
The device of claim 1 wherein the first end of the helical groove is adjacent to the first end of the shaft and wherein the second end of the helical groove is adjacent to the second end of the shaft.
Claim 11
Dependent Claim
42 words
The device of claim 7 wherein the thrust washer is carried by said shaft by a notch formed in the inner edge of the thrust washer and a lug extending from the shaft and engaging in the notch of the thrust washer.
Claim 12
Dependent Claim
33 words
The device of claim 1 wherein the helical groove tapers from the first end to a point in a direction opposite from the second end of the groove to allow ease of manufacture.
References Cited (Backward Citations)
US218094A
Cited
US486061A
Cited
US808197A
Cited
US2066281A
Cited
US2510549A
Cited
US2430752A
Cited
US3368799A
Cited
US3669517A
Cited
US4003562A
Cited
US3981547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |