US3602246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-operated logic elements
Assignee: BURKERT ELEKT CHRISTIAN
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Filing: 1969-10-02
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Granted: 1971-08-31
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Expires: 1989-10-02
Abstract
Abstract A fluid logic element which has a base block provided with a plurality of channels and valving means disposed within said block and response to fluid pressure for establishing or interrupting direct communication between channels, a plurality of routing elements each adapted to be secured to one face of said base block in a plurality of angular positions, to connected to selected ones of said channels, thus permitting the conversion of the internal fluid circuit of said logic element to perform any of a plurality of possible fluid logic functions.
Inventors
- 👤 Gerhard Hettinger
- 👤 Albert Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:37
CPC Classifications
F; F15; F15C; F15C3/00; F15C3/04; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5196; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686; Y10T137/877; Y10T137/87885
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
87 words
A fluid logic element of the static type including valve means operable by fluid pressure and means for attaching external fluid conduits, comprising, A. a base block provided with a plurality of channels adapted to form selected ones of a plurality of possible fluid logic circuits, and B. at least one routing element adapted to be secured to said base block in any one of a plurality of positions, said routing element, dependent upon its position, establishing communication between at least two selected ones of said channels.
Claim 2
Dependent Claim
87 words
A fluid logic element of the static type including valve means operable by fluid pressure and means for attaching external fluid conduits, comprising, A. a base block provided with a plurality of channels adapted to form selected ones of a plurality of possible fluid logic circuits, and B. at least one routing element adapted to be secured to said base block in any one of a plurality of positions, said routing element, dependent upon its position, establishing communication between at least two selected ones of said channels.
Claim 3
Dependent Claim
45 words
A fluid logic element as defined in claim 1, wherein said routing elements are at least two in number and are arranged in juxtaposition on said base block, means associated with said routing elements to permit only a limited number of combinations of said positions.
Claim 4
Dependent Claim
28 words
A fluid logic element as defined in claim 2, wherein said means associated with said routing elements include complemental notch and lug means provided on said routing elements.
Claim 5
Dependent Claim
27 words
A fluid logic element as defined in claim 1, wherein said routing element includes indicating means to outwardly reveal its position with respect to said base block.
Claim 6
Dependent Claim
22 words
A fluid logic element as defined in claim 4, wherein said indicating means is formed of at least one outwardly visible lug.
Claim 7
Dependent Claim
25 words
A fluid logic element as defined in claim 1, wherein said routing element includes ribs facing said base block and serving to establish said communication.
Claim 8
Dependent Claim
32 words
A fluid logic element as defined in claim 1, wherein said routing element has a polygonal contour permitting attachment to said base block in any one of a plurality of angular positions.
Claim 9
Dependent Claim
39 words
A fluid logic element as defined in claim 1, including a routing gasket insertable in said base block and provided with slots of predetermined course and configuration to selectively block or maintain open at least two of said channels.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |