Patent US3217564A successfully refreshed from Google Patents.
US3217564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible drive for power tools
Assignee: Individual
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Filing: 1963-02-28
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Granted: 1965-11-16
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Charles L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:22
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/043; B23Q5/048; F; F16; F16H; F16H3/00; F16H3/44; F16H3/46; F16H3/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
A REVERSING DRIVE UNIT COMPRISING (A) A HOUSING HAVING FORWARD AND REAR PORTIONS, (B) AN INPUT SHAFT JOURNALED IN SAID REAR HOUSING PORTION, SAID INPUT SHAFT SHAPED TO BE ENGAGED BY A CHUCK OF A SMALL DRILL MOTOR (NOT SHOWN), (C) A DRIVING GEAR WITHIN THE HOUSING INTEGRAL WITH THE INPUT SHAFT, (D) A PLANETARY GEAR CARRIED BY THE REAR HOUSING AND MESHING WITH THE DRIVING GEAR, (E) AN OUTPUT SHAFT ALIGNED WITH THE INPUT SHAFT AND JOURNALED IN THE FORWARD HOUSING, SAID OUTPUT SHAFT HAVING MEANS FOR DRIVING ENGAGEMENT OF THE SHANK OF A SMALL HAND TOOL OR THE LIKE, (F) A FACE PLATE WITHIN THE HOUSING CARRIED BY THE OUTPUT SHAFT, (G) A RING GEAR CARRIED BY THE FORWARD HOUSING PORTION, (H) MEANS, INCLUDING AT LEAST ONE PLANETARY GEAR CARRIED BY SAID FACE PLATE AND SAID PLANETARY GEAR CARRIED BY THE REAR HOUSING PORTION, CAUSING SAID OUTPUT SHAFT TO BE ROTATED IN ONE DIRECTION WHEN THE FORWARD HOUSING PORTION IS HELD STATIONARY, AND IN A REVERSE DIRECTION WHEN THE REAR HOUSING PORTION IS HELD STATIONARY, AND (I) RETAINING MEANS SECURED TO THE FORWARD HOUSING PORTION PROVIDING SUPPORT AND BEARING MEANS FOR THE REAR HOUSING PORTION.
Claim 2
Dependent Claim
197 words
A REVERSING DRIVE UNIT COMPRISING (A) A HOUSING HAVING FORWARD AND REAR PORTIONS, (B) AN INPUT SHAFT JOURNALED IN SAID REAR HOUSING PORTION, SAID INPUT SHAFT SHAPED TO BE ENGAGED BY A CHUCK OF A SMALL DRILL MOTOR (NOT SHOWN), (C) A DRIVING GEAR WITHIN THE HOUSING INTEGRAL WITH THE INPUT SHAFT, (D) A PLANETARY GEAR CARRIED BY THE REAR HOUSING AND MESHING WITH THE DRIVING GEAR, (E) AN OUTPUT SHAFT ALIGNED WITH THE INPUT SHAFT AND JOURNALED IN THE FORWARD HOUSING, SAID OUTPUT SHAFT HAVING MEANS FOR DRIVING ENGAGEMENT OF THE SHANK OF A SMALL HAND TOOL OR THE LIKE, (F) A FACE PLATE WITHIN THE HOUSING CARRIED BY THE OUTPUT SHAFT, (G) A RING GEAR CARRIED BY THE FORWARD HOUSING PORTION, (H) MEANS, INCLUDING AT LEAST ONE PLANETARY GEAR CARRIED BY SAID FACE PLATE AND SAID PLANETARY GEAR CARRIED BY THE REAR HOUSING PORTION, CAUSING SAID OUTPUT SHAFT TO BE ROTATED IN ONE DIRECTION WHEN THE FORWARD HOUSING PORTION IS HELD STATIONARY, AND IN A REVERSE DIRECTION WHEN THE REAR HOUSING PORTION IS HELD STATIONARY, AND (I) RETAINING MEANS SECURED TO THE FORWARD HOUSING PORTION PROVIDING SUPPORT AND BEARING MEANS FOR THE REAR HOUSING PORTION.
References Cited (Backward Citations)
US2941420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |