US3270619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Mimik Ltd
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Filing: 1965-06-02
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Granted: 1966-09-06
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Expires: 1985-06-02
Abstract
No abstract record available.
Inventors
- 👤 Lincoln S Magor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:17
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/24; B23Q35/26; B23K; B23K7/00; B23K7/002; B23K7/004; B23Q35/36; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/30168; Y10T409/302072; Y10T409/302128; Y10T409/302408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
330 words
IN A CONTROL FOR HYDRAULICALLY OPERATED MACHINES WHEREIN THE RELATIVE MOVEMENTS BETWEEN A TOOL AND A WORKPIECE CORRESPOND TO RELATIVE MOVEMENT BETWEEN A TRACER AND A PATTERN TO BE REPRODUCED, COMPRISING: MEANS FOR CONTROLLING SUCH RELATIVE MOVEMENTS; A STYLUS MOUNTED TO FORM THE OPERATIVE PART OF SAID TRACER AND ARRANGED TO CONTACT AND BE DEFLECTED BY SAID PATTERN; SAID STYLUS BEING CONNECTED TO SAID MEANS FOR CONTROLLING RELATIVE MOVEMENTS SO THAT WHEN DEFLECTED, SAID RELATIVE MOVEMENTS ARE CONTROLLED SO THAT THE RESULTANT RELATIVE MOVEMENT BETWEEN SAID TRACER AND THE PATTERN IS SUBSTANTIALLY IN THE DIRECTION OF SAID DEFLECTION; MEANS ROTATABLY MOUNTED ON SAID TRACER HEAD FOR BIASING SAID STYLUS IN A PREDETERMINED DIRECTION, RELATIVE TO SAID MEANS; ORIENTATION CONTROL FOR SAID BIASING MEANS; MEANS RESPONSIVE TO THE AMOUNT OF DEFLECTION OF SUCH STYLUS FROM A NEUTRAL POSITION OPERABLE: IN RESPONSE TO SAID DEFLECTION EXCEEDING A PREDETERMINED AMOUNT FOR CAUSING SAID ORIENTATION CONTROL TO ROTATE SAID BIASING MEANS IN ONE DIRECTION; AND IN RESPONSE TO SAID DEFLECTION BEING LESS THAN A PREDETERMINED AMOUNT FOR CAUSING SAID ORIENTATION CONTROL TO ROTATE SAID BIASING MEANS IN THE OTHER DIRECTION; WHEREIN A SPOOL VALVE IS MOUNTED ADJACENT SAID STYLUS; SAID SPOOL VALVE HAVING A SPOOL RELATIVELY SLIDABLE IN A SLEEVE IN A RANGE OF MOVEMENT ON EACH SIDE OF A MEDIAN LOCATION THEREIN; MEANS ARE PROVIDED RESPONSIVE TO MOVEMENT OF SAID SPOOL ON ONE SIDE OF SAID MEDIAN LOCATION, FOR MOVING SAID ORIENTATION CONTROL IN ONE DIRECTION, AND RESPONSIVE TO MOVEMENT OF SAID SPOOL ON THE OTHER SIDE OF SAID MEDIAN LOCATION FOR MOVING SAID ORIENTATION CONTROL IN THE OTHER DIRECTION; AND MEANS ARE PROVIDED MECHANICALLY COUPLING SAID STYLUS TO SAID VALVE DESIGNED AND CONSTRUCTED SO THAT: MOVEMENT OF SAID STYLUS TO GREATER THAN A PREDETERMINED DEFLECTION CAUSES SAID SPOOL TO MOVE TO SAID ONE SIDE OF SAID MEDIAN LOCATION, AND MOVEMENT OF SAID STYLUS TO LESS THAN A PREDETERMINED DEFLECTION CAUSES SAID SPOOL TO MOVE TO SAID OTHER SIDE OF SAID MEDIAN LOCATION.
Claim 2
Dependent Claim
330 words
IN A CONTROL FOR HYDRAULICALLY OPERATED MACHINES WHEREIN THE RELATIVE MOVEMENTS BETWEEN A TOOL AND A WORKPIECE CORRESPOND TO RELATIVE MOVEMENT BETWEEN A TRACER AND A PATTERN TO BE REPRODUCED, COMPRISING: MEANS FOR CONTROLLING SUCH RELATIVE MOVEMENTS; A STYLUS MOUNTED TO FORM THE OPERATIVE PART OF SAID TRACER AND ARRANGED TO CONTACT AND BE DEFLECTED BY SAID PATTERN; SAID STYLUS BEING CONNECTED TO SAID MEANS FOR CONTROLLING RELATIVE MOVEMENTS SO THAT WHEN DEFLECTED, SAID RELATIVE MOVEMENTS ARE CONTROLLED SO THAT THE RESULTANT RELATIVE MOVEMENT BETWEEN SAID TRACER AND THE PATTERN IS SUBSTANTIALLY IN THE DIRECTION OF SAID DEFLECTION; MEANS ROTATABLY MOUNTED ON SAID TRACER HEAD FOR BIASING SAID STYLUS IN A PREDETERMINED DIRECTION, RELATIVE TO SAID MEANS; ORIENTATION CONTROL FOR SAID BIASING MEANS; MEANS RESPONSIVE TO THE AMOUNT OF DEFLECTION OF SUCH STYLUS FROM A NEUTRAL POSITION OPERABLE: IN RESPONSE TO SAID DEFLECTION EXCEEDING A PREDETERMINED AMOUNT FOR CAUSING SAID ORIENTATION CONTROL TO ROTATE SAID BIASING MEANS IN ONE DIRECTION; AND IN RESPONSE TO SAID DEFLECTION BEING LESS THAN A PREDETERMINED AMOUNT FOR CAUSING SAID ORIENTATION CONTROL TO ROTATE SAID BIASING MEANS IN THE OTHER DIRECTION; WHEREIN A SPOOL VALVE IS MOUNTED ADJACENT SAID STYLUS; SAID SPOOL VALVE HAVING A SPOOL RELATIVELY SLIDABLE IN A SLEEVE IN A RANGE OF MOVEMENT ON EACH SIDE OF A MEDIAN LOCATION THEREIN; MEANS ARE PROVIDED RESPONSIVE TO MOVEMENT OF SAID SPOOL ON ONE SIDE OF SAID MEDIAN LOCATION, FOR MOVING SAID ORIENTATION CONTROL IN ONE DIRECTION, AND RESPONSIVE TO MOVEMENT OF SAID SPOOL ON THE OTHER SIDE OF SAID MEDIAN LOCATION FOR MOVING SAID ORIENTATION CONTROL IN THE OTHER DIRECTION; AND MEANS ARE PROVIDED MECHANICALLY COUPLING SAID STYLUS TO SAID VALVE DESIGNED AND CONSTRUCTED SO THAT: MOVEMENT OF SAID STYLUS TO GREATER THAN A PREDETERMINED DEFLECTION CAUSES SAID SPOOL TO MOVE TO SAID ONE SIDE OF SAID MEDIAN LOCATION, AND MOVEMENT OF SAID STYLUS TO LESS THAN A PREDETERMINED DEFLECTION CAUSES SAID SPOOL TO MOVE TO SAID OTHER SIDE OF SAID MEDIAN LOCATION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |