US3098595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dithering servo valve and web guide system
Assignee: KB MEZZANINE FUND LP
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Filing: 1962-02-26
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Granted: 1963-07-23
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Expires: 1982-02-26
Abstract
No abstract record available.
Inventors
- 👤 John J Shelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:38
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/12; B; B21; B21C; B21C47/00; B21C47/34; B21C47/3408; B21C47/3416; B21C47/3425; B65; B65H; B65H23/00; B65H23/02; B65H23/0204; B65H23/0212; B65H23/032; B65H23/038; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322; Y10T137/6198; Y10T137/8593; Y10T137/87169; Y10T137/87193; Y10T137/87201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
360 words
A WEB GUIDING SYSTEM FOR GUIDING A TRAVELING WEB COMPRISING: A VALVE HOUSING FORMING A VALVE CAVITY HAVING A POWER FLUID INLET PORT AND A PAIR OF POWER FLUID OUTLET PORTS IN FLUID COMMUNICATION WITH THE VALVE CAVITY; A SPOOL MEMBER RECIPROCALLY DISPOSED IN THE VALVE CAVITY FOR ALTERNATELY PLACING EACH OF THE POWER FLUID OUTLET PORTS IN FLUID COMMUNICATION WITH THE POWER FLUID INLET PORT; A SOURCE OF HIGH PRESSURE POWER FLUID CONNECTED TO SUPPLY HIGH PRESSURE POWER FLUID TO THE POWER FLUID INLET PORT; A GUIDE MEANS FOR GUIDING THE RELATIVE PATH OF TRAVEL OF A WEB, THE GUIDE MEANS HAVING A FLUID SERVO MOTOR FOR ACTUATING MEANS, THE POWER FLUID OUTLET PORTS BEING CONNECTED TO THE FLUID SERVO MOTOR FOR ACTUATING THE SERVO MOTOR IN RESPONSE TO THE POSITION OF THE SPOOL MEMBER A FIRST WORKING SURFACE CONNECTED TO THE SPOOL MEMBER FOR APPLYING A FORCE TO THE SPOOL MEMBER AS A RESULT OF FLUID PRESSURE APPLIED TO THE WORKING SURFACE; A FIRST FLUID CHAMBER FOR APPLYING A FLUID PRESSURE TO THE FIRST FLUID WORKING SURFACE; A SECOND FLUID WORKING SURFACE CONNECTED TO THE SPOOL MEMBER FOR APPLYING A FORCE TO AND MOVING THE SPOOL MEMBER IN CORRESPONDENCE TO THE PRESSURE OF A CONTROL SIGNAL FLUID; A SECOND FLUID CHAMBER FOR APPLYING A FLUID PRESSURE TO THE SECOND FLUID WORKING SURFACE; COUNTERBALANCING MEANS FOR APPLING A COUNTER-BALANCING FORCE TO THE SPOOL MEMBER WHICH IS EQUAL AND OPPOSITE TO THE AVERAGE VECTOR SUM OF THE FORCES APPLIED TO THE SPOOL MEMBER; A SOURCE OF PULSATING, CONSTANT AVERAGE PRESSURE FLUID; MEANS PLACING THE SOURCE OF PULSATING, CONSTANT AVERAGE PRESSURE FLUID IN FLUID COMMUNICATION WITH THE FIRST FLUID CHAMBER; FLUID OPERATED SENSING MEANS FOR PRODUCING A CONTROL SIGNAL FLUID PRESSURE WHICH VARIES IN ACCORDANCE WITH THE POSITION OF THE EDGE OF A WEB, THE SENSING MEANS HAVING A FLUID INPUT PORT AND A FLUID OUTPUT PORT FOR TRANSMITTING THE CONTROL SIGNAL FLUID PRESSURE; MEANS PLACING THE SOURCE OF PULSATING, CONSTANT AVERAGE PRESSURE FLUID IN FLUID COMMUNICATION WITH THE INPUT PORT; AND, MEANS FOR APPLYING A FLUID PRESSURE TO THE SECOND FLUID CHAMBER PROPORTIONAL TO THE PRESSURE IN THE OUTPUT PORT.
Claim 2
Dependent Claim
360 words
A WEB GUIDING SYSTEM FOR GUIDING A TRAVELING WEB COMPRISING: A VALVE HOUSING FORMING A VALVE CAVITY HAVING A POWER FLUID INLET PORT AND A PAIR OF POWER FLUID OUTLET PORTS IN FLUID COMMUNICATION WITH THE VALVE CAVITY; A SPOOL MEMBER RECIPROCALLY DISPOSED IN THE VALVE CAVITY FOR ALTERNATELY PLACING EACH OF THE POWER FLUID OUTLET PORTS IN FLUID COMMUNICATION WITH THE POWER FLUID INLET PORT; A SOURCE OF HIGH PRESSURE POWER FLUID CONNECTED TO SUPPLY HIGH PRESSURE POWER FLUID TO THE POWER FLUID INLET PORT; A GUIDE MEANS FOR GUIDING THE RELATIVE PATH OF TRAVEL OF A WEB, THE GUIDE MEANS HAVING A FLUID SERVO MOTOR FOR ACTUATING MEANS, THE POWER FLUID OUTLET PORTS BEING CONNECTED TO THE FLUID SERVO MOTOR FOR ACTUATING THE SERVO MOTOR IN RESPONSE TO THE POSITION OF THE SPOOL MEMBER A FIRST WORKING SURFACE CONNECTED TO THE SPOOL MEMBER FOR APPLYING A FORCE TO THE SPOOL MEMBER AS A RESULT OF FLUID PRESSURE APPLIED TO THE WORKING SURFACE; A FIRST FLUID CHAMBER FOR APPLYING A FLUID PRESSURE TO THE FIRST FLUID WORKING SURFACE; A SECOND FLUID WORKING SURFACE CONNECTED TO THE SPOOL MEMBER FOR APPLYING A FORCE TO AND MOVING THE SPOOL MEMBER IN CORRESPONDENCE TO THE PRESSURE OF A CONTROL SIGNAL FLUID; A SECOND FLUID CHAMBER FOR APPLYING A FLUID PRESSURE TO THE SECOND FLUID WORKING SURFACE; COUNTERBALANCING MEANS FOR APPLING A COUNTER-BALANCING FORCE TO THE SPOOL MEMBER WHICH IS EQUAL AND OPPOSITE TO THE AVERAGE VECTOR SUM OF THE FORCES APPLIED TO THE SPOOL MEMBER; A SOURCE OF PULSATING, CONSTANT AVERAGE PRESSURE FLUID; MEANS PLACING THE SOURCE OF PULSATING, CONSTANT AVERAGE PRESSURE FLUID IN FLUID COMMUNICATION WITH THE FIRST FLUID CHAMBER; FLUID OPERATED SENSING MEANS FOR PRODUCING A CONTROL SIGNAL FLUID PRESSURE WHICH VARIES IN ACCORDANCE WITH THE POSITION OF THE EDGE OF A WEB, THE SENSING MEANS HAVING A FLUID INPUT PORT AND A FLUID OUTPUT PORT FOR TRANSMITTING THE CONTROL SIGNAL FLUID PRESSURE; MEANS PLACING THE SOURCE OF PULSATING, CONSTANT AVERAGE PRESSURE FLUID IN FLUID COMMUNICATION WITH THE INPUT PORT; AND, MEANS FOR APPLYING A FLUID PRESSURE TO THE SECOND FLUID CHAMBER PROPORTIONAL TO THE PRESSURE IN THE OUTPUT PORT.
References Cited (Backward Citations)
US3009664A
Cited
US3039483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |