Patent US4067262A successfully refreshed from Google Patents.
Patent US3097724A successfully refreshed from Google Patents.
US3097724A
Expired / Lapsed
US
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Rotary latch mechanism for machine tools
Assignee: Cross Co
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Filing: 1961-11-02
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Granted: 1963-07-16
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Expires: 1981-11-02
Abstract
No abstract record available.
Inventors
- 👤 Ii John A Bryant
- 👤 Pierce Guy Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:48
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/20; B23Q16/00; B23Q16/02; B23Q16/04; B23Q16/06; B23Q16/065; F; F15; F15B; F15B21/00; F16; F16D; F16D71/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A ROTARY LATCH MECHANISM FOR MACHINE SPINDLE ASSEMBLIES AND THE LIKE, COMPRISING A LATCH PLATE ROTATABLE WITH THE SPINDLE ASSEMBLY AND HAVING A LOCKING PORTION, A LATCH NORMALLY DISENGAGED FROM SAID LATCH PLATE MOVABLE AGAINST THE LOCKING PORTION THEREOF TO HOLD THE SAME IN A ROTATABLY LOCKED POSITION, AND A FLUID SYSTEM INCLUDING MEANS FOR MAINTAINING FLUID PRESSURE IN THE SYSTEM, A FLUID MOTOR CONNECTED TO SAID LATCH AND OPERATIVE BY FLUID PRESSURE IN THE SYSTEM TO MOVE THE LATCH INTO AND OUT OF ENGAGEMENT WITH THE LOCKING PORTION OF SAID LATCH PLATE, AND A PRESSURE RELIEF DEVICE COMMUNICATING WITH SAID FLUID MOTOR AND OPERATIVE WHEN SAID LOCKING PORTION ENGAGES SAID LATCH TO RELIEVE PRESSURE IN THE SYSTEM SUFFICIENTLY TO PERMIT SAID LATCH PLATE TO OVERRIDE SAID LOCKED POSITION AGAINST THE ACTION OF SAID LATCH AND SAID FLUID MOTOR SO AS TO REDUCE THE IMPACT SHOCK OF SAID ENGAGEMENT BUT NOT SUFFICIENTLY TO PERMIT THE LOCKING PORTION OF SAID LATCH PLATE TO OVERRIDE AND DISENGAGE SAID LATCH COMPLETELY OR TO PREVENT THE LATCH AND SAID MOTOR FROM PULLING THE OVERRIDING LATCH PLATE BACK TO THE LOCKED POSITION.
Claim 2
Dependent Claim
187 words
A ROTARY LATCH MECHANISM FOR MACHINE SPINDLE ASSEMBLIES AND THE LIKE, COMPRISING A LATCH PLATE ROTATABLE WITH THE SPINDLE ASSEMBLY AND HAVING A LOCKING PORTION, A LATCH NORMALLY DISENGAGED FROM SAID LATCH PLATE MOVABLE AGAINST THE LOCKING PORTION THEREOF TO HOLD THE SAME IN A ROTATABLY LOCKED POSITION, AND A FLUID SYSTEM INCLUDING MEANS FOR MAINTAINING FLUID PRESSURE IN THE SYSTEM, A FLUID MOTOR CONNECTED TO SAID LATCH AND OPERATIVE BY FLUID PRESSURE IN THE SYSTEM TO MOVE THE LATCH INTO AND OUT OF ENGAGEMENT WITH THE LOCKING PORTION OF SAID LATCH PLATE, AND A PRESSURE RELIEF DEVICE COMMUNICATING WITH SAID FLUID MOTOR AND OPERATIVE WHEN SAID LOCKING PORTION ENGAGES SAID LATCH TO RELIEVE PRESSURE IN THE SYSTEM SUFFICIENTLY TO PERMIT SAID LATCH PLATE TO OVERRIDE SAID LOCKED POSITION AGAINST THE ACTION OF SAID LATCH AND SAID FLUID MOTOR SO AS TO REDUCE THE IMPACT SHOCK OF SAID ENGAGEMENT BUT NOT SUFFICIENTLY TO PERMIT THE LOCKING PORTION OF SAID LATCH PLATE TO OVERRIDE AND DISENGAGE SAID LATCH COMPLETELY OR TO PREVENT THE LATCH AND SAID MOTOR FROM PULLING THE OVERRIDING LATCH PLATE BACK TO THE LOCKED POSITION.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |