US3289715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic shut-off tool
Assignee: Aro Corp
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Filing: 1964-03-19
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Granted: 1966-12-06
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Expires: 1984-03-19
Abstract
No abstract record available.
Inventors
- 👤 Groff Morton S De
- 👤 Richard E Plouck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:41
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
IN AN AUTOMATIC SHUT-OFF TOOL OF THE CHARACTER DISCLOSED, A DRIVE SPINDLE, A MOTOR FOR ROTATING SAID DRIVE SPINDLE, A ROTATABLE TOOL HOLDER HAVING A CAMMING CLUTCH, JAW, AN OPERATIVE CONNECTION BETWEEN SAID DRIVE SPINDLE AND SAID TOOL HOLDER COMPRISING A DRIVE CLUTCH JAW MEMBER CONTINUOUSLY MESHING WITH SAID CAMMING CLUTCH JAW, A TORQUE SPRING NORMALLY BIASING SAID JAWS TO FULL MESH WITH EACH OTHER, A DRIVE ELEMENT BETWEEN SAID DRIVE SPINDLE AND SAID DRIVE CLUTCH JAW MEMBER AXIALLY MOVABLE BY ENGAGEMENT OF A TOOL ELEMENT IN SAID TOOL HOLDER WITH THE WORK, A NORMALLY INOPERATIVE CONTROL MEANS FOR SAID MOTOR, AN OPERATIVE CONNECTION BETWEEN SAID DRIVE ELEMENT AND SAID CONTROL MEANS TO RENDER THE LATTER OPERABLE WHEN SAID DRIVE ELEMENT IS MOVED AXIALLY BY ENGAGEMENT OF THE TOOL ELEMENT WITH THE WORK, AND MEANS FOR RELEASING SAID CONTROL MEANS TO RETURN TO NORMALLY INOPERATIVE POSITION UPON SAID JAWS CAMMING TO A PARTIALLY UNMESHED POSITION RESPONSIVE TO PREDETERMINED TORQUE OF THE WORK, SAID LAST MEANS BEING MECHANICALLY ACTUATED BY THE RELATIVE MOVEMENT OF SAID JAWS DURING THE CAMMING ACTION AND AT A POINT IN SUCH ACTION SHORT OF UNMESHING OF SAID JAWS.
Claim 2
Dependent Claim
192 words
IN AN AUTOMATIC SHUT-OFF TOOL OF THE CHARACTER DISCLOSED, A DRIVE SPINDLE, A MOTOR FOR ROTATING SAID DRIVE SPINDLE, A ROTATABLE TOOL HOLDER HAVING A CAMMING CLUTCH, JAW, AN OPERATIVE CONNECTION BETWEEN SAID DRIVE SPINDLE AND SAID TOOL HOLDER COMPRISING A DRIVE CLUTCH JAW MEMBER CONTINUOUSLY MESHING WITH SAID CAMMING CLUTCH JAW, A TORQUE SPRING NORMALLY BIASING SAID JAWS TO FULL MESH WITH EACH OTHER, A DRIVE ELEMENT BETWEEN SAID DRIVE SPINDLE AND SAID DRIVE CLUTCH JAW MEMBER AXIALLY MOVABLE BY ENGAGEMENT OF A TOOL ELEMENT IN SAID TOOL HOLDER WITH THE WORK, A NORMALLY INOPERATIVE CONTROL MEANS FOR SAID MOTOR, AN OPERATIVE CONNECTION BETWEEN SAID DRIVE ELEMENT AND SAID CONTROL MEANS TO RENDER THE LATTER OPERABLE WHEN SAID DRIVE ELEMENT IS MOVED AXIALLY BY ENGAGEMENT OF THE TOOL ELEMENT WITH THE WORK, AND MEANS FOR RELEASING SAID CONTROL MEANS TO RETURN TO NORMALLY INOPERATIVE POSITION UPON SAID JAWS CAMMING TO A PARTIALLY UNMESHED POSITION RESPONSIVE TO PREDETERMINED TORQUE OF THE WORK, SAID LAST MEANS BEING MECHANICALLY ACTUATED BY THE RELATIVE MOVEMENT OF SAID JAWS DURING THE CAMMING ACTION AND AT A POINT IN SUCH ACTION SHORT OF UNMESHING OF SAID JAWS.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |