US3639093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for fluid translating device
Assignee: Case LLC
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Filing: 1970-04-13
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Granted: 1972-02-01
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Expires: 1990-04-13
Abstract
Abstract A fluid translating device having a fixed stator and a rotor cooperating to define at least one fluid chamber. The device incorporates fluid conducting means for supplying and exhausting fluid from an external source to the working chamber. The fluid conducting means is remotely controlled and is normally maintained in a first position by automatic means. The fluid conducting means is in the form of a movable valve member and the remotely controlled means includes additional fluid conducting means cooperating with the valve member to move the valve member from the first position and vary the output of the fluid translating device.
Inventors
- 👤 Birger F Jansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:25
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/30; F01C1/34; F01C1/356
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
213 words
In a fluid translating device having a rotating element and a fixed element cooperating to define at least one fluid chamber, one of said elements having a bore and a plurality of passageways communicating at one end with said bore and an opposite end with said at least one chamber; fluid inlet and exhaust ports communicating with said bore, said inlet port adapted to have a source of fluid under pressure connected thereto; valve means in said bore defining first and second flow paths between said ports and said plurality of passageways; means for moving said valve means in said bore to vary the number of passageways in communication with the respective flow paths, said last means including a portion of said one of said elements and a portion of said valve means cooperating to define a cavity at one end of said bore; fluid conducting means selectively connectable to said cavity to vary the size of said cavity and change the position of said valve means within said bore; conduit means extending through said valve means and communicating with the opposite end of said bore and a conduit extending through said cavity and telescopingly received in said conduit means to channel away any fluid received in said opposite end of said bore.
Claim 2
Dependent Claim
213 words
In a fluid translating device having a rotating element and a fixed element cooperating to define at least one fluid chamber, one of said elements having a bore and a plurality of passageways communicating at one end with said bore and an opposite end with said at least one chamber; fluid inlet and exhaust ports communicating with said bore, said inlet port adapted to have a source of fluid under pressure connected thereto; valve means in said bore defining first and second flow paths between said ports and said plurality of passageways; means for moving said valve means in said bore to vary the number of passageways in communication with the respective flow paths, said last means including a portion of said one of said elements and a portion of said valve means cooperating to define a cavity at one end of said bore; fluid conducting means selectively connectable to said cavity to vary the size of said cavity and change the position of said valve means within said bore; conduit means extending through said valve means and communicating with the opposite end of said bore and a conduit extending through said cavity and telescopingly received in said conduit means to channel away any fluid received in said opposite end of said bore.
Claim 3
Dependent Claim
54 words
A fluid translating device as defined in claim 1, in which said means for moving said valve means further includes mechanism normally maintaining said valve means in a first position and said fluid conducting means includes a pressured fluid source selectively connected to said cavity to move said valve means from said first position.
Claim 4
Dependent Claim
86 words
A fluid translating device as defined in claim 1, in which said means for moving said valve means includes biasing means normally maintaining said valve means in a first position, and stop means disposed in the path of movement of said valve means and defining a second position for said valve means; and in which said fluid conducting means includes a pressured fluid source selectively in communication with said cavity to overcome said biasing means and move said valve means into engagement with said sTop means.
Claim 5
Dependent Claim
112 words
A fluid translating device as defined in claim 1, in which said portion on said valve means is one end of said valve means and said bore has a closed end defining said portion of said one of said elements, the further improvement of said means for moving said valve means including a spring engaging an opposite end of said valve means and normally maintaining said valve means in a first position, and stop means adjacent said opposite end defining a second position for said valve means; and in which said fluid conducting means supplies pressured fluid to said cavity to move said valve means from said first to said second position.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |