Patent US3173302A successfully refreshed from Google Patents.
US3173302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gearing
Assignee: Individual
•
Filing: 1962-10-31
•
Granted: 1965-03-16
•
Expires: 1982-10-31
Abstract
No abstract record available.
Inventors
- 👤 Robinson Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:48
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/12; B23Q5/14; B23Q5/142; F; F16; F16H; F16H37/00; B23Q2705/00; B23Q2705/02; B23Q2705/06; B23Q2705/062; B23Q2705/064; F16H2700/00; F16H2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084; Y10T74/19219; Y10T74/19293; Y10T74/19298; Y10T74/19307
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
A LATHE HEADSTOCK GEARING FOR DRIVING A LATHE SPINDLE AND A FEED DRIVE SHAFT, COMPRISING: AN INPUT SHAFT; AN INTERMEDIATE SHAFT; A VARIABLE RATIO GEARING COUPLING THE INPUT SHAFT TO THE INTERMEDIATE SHAFT; A SPINDLE GEAR FAST WITH THE SPINDLE A DRIVEN PULLEY FAST WITH THE SPINDLE; A PULLEY SHAFT; A DRIVING PULLEY AND THE PULLEY GEAR FAST WITH THE PULLEY SHAFT; A BELT DRIVE BETWEEN THE DRIVING AND DRIVEN PULLEYS; A SHIFTABLE GEAR SLIDABLY KEYED TO THE INTERMEDIATE SHAFT; MEANS FOR MOVING THE SHIFTABLE GEAR INTO ENGAGEMENT WITH THE SAID SPINDLE GEAR, TO PROVIDE ONE RANGE OF SPINDLE SPEEDS, OR ALTERNATIVELY INTO ENGAGEMENT WITH THE SAID PULLEY GEAR, TO PROVIDE A SECOND RANGE OF SPINDLE SPEEDS HIGHER THAN SAID ONE RANGE; A FIXED GEAR FAST WITH THE INTERMEDIATE SHAFT; AN IDLER GEAR MESHING WITH THE SAID FIXED GEAR; A FEED DRIVE SPINDLE GEAR FAST WITH THE SPINDLE; A FEED GEAR SLIDABLY KEYED ON THE FEED DRIVE SHAFT; AND MEANS FOR MOVING THE FEED GEAR INTO ENGAGEMENT WITH THE SAID FEED DRIVE SPINDLE GEAR, OR ALTERNATIVELY INTO ENGAGEMENT WITH THE SAID IDLER GEAR TO PROVIDE HIGHER AND LOWER SPEED RATIOS, RESPECTIVELY OF THE FEED DRIVE SHAFT RELATIVE TO THE SPINDLE.
Claim 2
Dependent Claim
200 words
A LATHE HEADSTOCK GEARING FOR DRIVING A LATHE SPINDLE AND A FEED DRIVE SHAFT, COMPRISING: AN INPUT SHAFT; AN INTERMEDIATE SHAFT; A VARIABLE RATIO GEARING COUPLING THE INPUT SHAFT TO THE INTERMEDIATE SHAFT; A SPINDLE GEAR FAST WITH THE SPINDLE A DRIVEN PULLEY FAST WITH THE SPINDLE; A PULLEY SHAFT; A DRIVING PULLEY AND THE PULLEY GEAR FAST WITH THE PULLEY SHAFT; A BELT DRIVE BETWEEN THE DRIVING AND DRIVEN PULLEYS; A SHIFTABLE GEAR SLIDABLY KEYED TO THE INTERMEDIATE SHAFT; MEANS FOR MOVING THE SHIFTABLE GEAR INTO ENGAGEMENT WITH THE SAID SPINDLE GEAR, TO PROVIDE ONE RANGE OF SPINDLE SPEEDS, OR ALTERNATIVELY INTO ENGAGEMENT WITH THE SAID PULLEY GEAR, TO PROVIDE A SECOND RANGE OF SPINDLE SPEEDS HIGHER THAN SAID ONE RANGE; A FIXED GEAR FAST WITH THE INTERMEDIATE SHAFT; AN IDLER GEAR MESHING WITH THE SAID FIXED GEAR; A FEED DRIVE SPINDLE GEAR FAST WITH THE SPINDLE; A FEED GEAR SLIDABLY KEYED ON THE FEED DRIVE SHAFT; AND MEANS FOR MOVING THE FEED GEAR INTO ENGAGEMENT WITH THE SAID FEED DRIVE SPINDLE GEAR, OR ALTERNATIVELY INTO ENGAGEMENT WITH THE SAID IDLER GEAR TO PROVIDE HIGHER AND LOWER SPEED RATIOS, RESPECTIVELY OF THE FEED DRIVE SHAFT RELATIVE TO THE SPINDLE.
References Cited (Backward Citations)
US2464619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |