US3592233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Common bearing means for load shaft and rotary valve in fluid pressure device
Assignee: Individual
•
Filing: 1969-11-28
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Granted: 1971-07-13
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Expires: 1989-11-28
Abstract
Abstract Common bearing means are provided for a load shaft and a rotary valve in a fluid pressure device. The load shaft and rotary valve are mounted in two separate compartments of a housing. A hollow drive shaft extension is carried by the load shaft in one compartment and extends into the other compartment upon which the rotary valve is mounted. The common bearing means directly supports the load shaft and indirectly supports the rotary valve through the hollow drive shaft extension. The common bearing means preferably comprises a pair of tapered roller bearings which provide both radial and axial thrust. The rotary valve is radially spaced from the housing in which it is mounted and makes an axially slidable connection with the hollow drive shaft extension and thus is not affected by radial and axial movements of the load shaft.
Inventors
- 👤 George V Woodling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:53
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/04; F16K3/06; F16K3/08; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
Common bearing means in a fluid pressure device comprising, housing means including generally first compartment means and second compartment means, load shaft means in said first compartment means rotary valve means in said second compartment means, extension drive means carried by said load shaft means for rotating said rotary valve means by said load shaft means, said extension drive means axially extending from said load shaft means and having terminal portion means projecting into said second compartment means, said rotary valve means and said terminal portion means having an axially slidable connection therebetween to accommodate for axial movement of said load shaft means, said rotary valve means and said second compartment means having a radial clearance therebetween to accommodate for radial movement of said load shaft means, said common bearing means directly supporting said load shaft means in said first compartment means and indirectly supporting said rotary valve means in said second compartment means.
Claim 2
Dependent Claim
154 words
Common bearing means in a fluid pressure device comprising, housing means including generally first compartment means and second compartment means, load shaft means in said first compartment means rotary valve means in said second compartment means, extension drive means carried by said load shaft means for rotating said rotary valve means by said load shaft means, said extension drive means axially extending from said load shaft means and having terminal portion means projecting into said second compartment means, said rotary valve means and said terminal portion means having an axially slidable connection therebetween to accommodate for axial movement of said load shaft means, said rotary valve means and said second compartment means having a radial clearance therebetween to accommodate for radial movement of said load shaft means, said common bearing means directly supporting said load shaft means in said first compartment means and indirectly supporting said rotary valve means in said second compartment means.
Claim 3
Dependent Claim
14 words
The structure of claim 1, wherein said extension drive means comprises hollow shaft means.
Claim 4
Dependent Claim
25 words
The structure of claim 2, wherein said hollow shaft means constitutes sole radial support means for said rotary valve means in said second compartment means.
Claim 5
Dependent Claim
19 words
The structure of claim 1, wherein said common bearing means comprises at least a pair of tapered roller bearings.
Claim 6
Dependent Claim
60 words
The structure of claim 2, including stationary valve means enclosing said rotary valve means in said second compartment means, wall means disposed between said first and second compartment means, said rotary valve means being confined between said wall means and said stationary valve means in an axial direction and being supported solely by said hollow shaft in a radial direction.
Claim 7
Dependent Claim
46 words
The structure of claim 2, wherein said rotary valve means has female socket means and wherein said hollow shaft in said second compartment means has terminal male shank means, said socket means and said shank means comprising axially slidable interfitting parts and constituting a nonrotative connection.
Claim 8
Dependent Claim
24 words
The structure of claim 6, wherein said wall means has a central opening and wherein said hollow shaft means extends through said central opening.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |