US3178740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead screw feed means with means to clutch rotating spindle to feed means
Assignee: KAUFMAN Manufacturing CO
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Filing: 1961-08-30
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Granted: 1965-04-20
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Expires: 1981-08-30
Abstract
No abstract record available.
Inventors
- 👤 Marvin H Dorak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:03
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/16; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/172; Y10T408/65; Y10T408/675; Y10T408/6771; Y10T408/6776
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN A METAL WORKING MACHINE, A SPINDLE, A REVERSIBLE ELECTRIC MOTOR, MEANS FOR ROTATING THE SPINDLE FROM THE MOTOR, A TOOL CARRIED BY THE SPINDLE, MEANS FOR RECIPROCATING THE SPINDLE BACK AND FORTH TO BRING THE TOOL FORWARD AND AWAY FROM THE WORK, A NORMALY FIXED FEED NUT, A LEAD SCREW CARRIED BY THE FEED NUT, AND SAID SPINDLE ROTATABLY EXTENDING THROUGH THE LEAD SCREW, AND MEANS FOR OPERATIVELY CONNECTING THE SPINDLE WITH THE LEAD SCREW FOR ROTATING THE LEAD SCREW AND FOR FEEDING THE TOOL INTO THE WORK WHEN THE TOOL REACHES THE WORK AND FOR CONTINUING THE TOOL TO THE PROPER DEPTH, AND THEN REVERSING THE TOOL OUT OF THE WORK TO A POINT WHERE THE TOOL HAS LEFT THE WORK AND FOR THEN DISCONNECTING THE SPINDLE FROM THE LEAD SCREW FOR RETURNING THE TOOL AND SPINDLE TO THEIR ORIGINAL POSITIONS INCLUDING A CLUTCH FACE FORMED ON THE LEAD SCREW AND A CLUTCH MEMBER RIGIDLY CARRIED BY THE SPINDLE MOVABLE WITH THE SPINDLE INTO AND OUT OF THE CLUTCHING ENGAGEMENT WITH SAID FACE.
Claim 2
Dependent Claim
175 words
IN A METAL WORKING MACHINE, A SPINDLE, A REVERSIBLE ELECTRIC MOTOR, MEANS FOR ROTATING THE SPINDLE FROM THE MOTOR, A TOOL CARRIED BY THE SPINDLE, MEANS FOR RECIPROCATING THE SPINDLE BACK AND FORTH TO BRING THE TOOL FORWARD AND AWAY FROM THE WORK, A NORMALY FIXED FEED NUT, A LEAD SCREW CARRIED BY THE FEED NUT, AND SAID SPINDLE ROTATABLY EXTENDING THROUGH THE LEAD SCREW, AND MEANS FOR OPERATIVELY CONNECTING THE SPINDLE WITH THE LEAD SCREW FOR ROTATING THE LEAD SCREW AND FOR FEEDING THE TOOL INTO THE WORK WHEN THE TOOL REACHES THE WORK AND FOR CONTINUING THE TOOL TO THE PROPER DEPTH, AND THEN REVERSING THE TOOL OUT OF THE WORK TO A POINT WHERE THE TOOL HAS LEFT THE WORK AND FOR THEN DISCONNECTING THE SPINDLE FROM THE LEAD SCREW FOR RETURNING THE TOOL AND SPINDLE TO THEIR ORIGINAL POSITIONS INCLUDING A CLUTCH FACE FORMED ON THE LEAD SCREW AND A CLUTCH MEMBER RIGIDLY CARRIED BY THE SPINDLE MOVABLE WITH THE SPINDLE INTO AND OUT OF THE CLUTCHING ENGAGEMENT WITH SAID FACE.
References Cited (Backward Citations)
US1370859A
Cited
US3013285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |