US3174597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact clutch
Assignee: Chicago Pneumatic Tool Co LLC
•
Filing: 1961-12-19
•
Granted: 1965-03-23
•
Expires: 1981-12-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Schaedler
- 👤 Roger C Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:56
CPC Classifications
B; B25; B25B; B25B21/00; B25B21/02; B25B21/026; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN AN IMPACT WRENCH, A HAMMER ASSEMBLY COMPRISING A HAMMER ELEMENT HAVING A CENTRAL BORE OF CYLINDRICAL SHAPE AND ROTATABLE ABOUT THE AXIS OF THE BORE, A LONGITUDINAL RECESS IN THE WALL OF THE HAMMER ELEMENT COMMUNICATING WITH THE BORE, A DOG RECEIVED IN THE RECESS FOR SLIDABLE MOVEMENT THEREALONG, THE DOG BEING RECEIVED PARTLY WITHIN THE RECESS AND PARTLY WITHIN THE CENTRAL BORE, THE FRONT EXTREMITY OF THE HAMMER ELEMENT LYING FORWARD OF THE FRONT EXTREMITY OF THE DOG AT ALL TIMES, SAID RECESS HAVING A UNIFORM CROSS-SECTION THROUGHOUT ITS LENGTH, THE OUTER WALL SAID RECESS BEING CLOSED, THE MOUTH OF SAID RECESS BEING FORMED TO INTERSECT THE CENTRAL BORE ALONG TWO PARALLEL EDGES, THE DISTANCE BETWEEN SAID EDGES BEING AT LEAST EQUAL TO THE WIDTH OF THE DOG, SAID DOG BEING INSERTABLE INTO AND REMOVABLE FROM THE RECESS UPON MOTION OF TRANSLATION OF THE DOG IN A DIRECTION RADIALLY OF THE CENTRAL RECESS.
Claim 2
Dependent Claim
155 words
IN AN IMPACT WRENCH, A HAMMER ASSEMBLY COMPRISING A HAMMER ELEMENT HAVING A CENTRAL BORE OF CYLINDRICAL SHAPE AND ROTATABLE ABOUT THE AXIS OF THE BORE, A LONGITUDINAL RECESS IN THE WALL OF THE HAMMER ELEMENT COMMUNICATING WITH THE BORE, A DOG RECEIVED IN THE RECESS FOR SLIDABLE MOVEMENT THEREALONG, THE DOG BEING RECEIVED PARTLY WITHIN THE RECESS AND PARTLY WITHIN THE CENTRAL BORE, THE FRONT EXTREMITY OF THE HAMMER ELEMENT LYING FORWARD OF THE FRONT EXTREMITY OF THE DOG AT ALL TIMES, SAID RECESS HAVING A UNIFORM CROSS-SECTION THROUGHOUT ITS LENGTH, THE OUTER WALL SAID RECESS BEING CLOSED, THE MOUTH OF SAID RECESS BEING FORMED TO INTERSECT THE CENTRAL BORE ALONG TWO PARALLEL EDGES, THE DISTANCE BETWEEN SAID EDGES BEING AT LEAST EQUAL TO THE WIDTH OF THE DOG, SAID DOG BEING INSERTABLE INTO AND REMOVABLE FROM THE RECESS UPON MOTION OF TRANSLATION OF THE DOG IN A DIRECTION RADIALLY OF THE CENTRAL RECESS.
References Cited (Backward Citations)
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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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |