Patent US3173682A successfully refreshed from Google Patents.
US3173682A
Expired / Lapsed
US
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Counterbalancing sheet feeding mechanism
Assignee: Individual
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Filing: 1963-01-07
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Granted: 1965-03-16
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Expires: 1983-01-07
Abstract
No abstract record available.
Inventors
- 👤 Albert F Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:26
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/24; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/423; B65H2301/4232; B65H2301/42322; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156; Y10T74/2157
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A DEVICE AT THE CLASS DESCRIBED COMPRISING A DRIVING SHAFT ROTATABLE AT CONSTANT ANGULAR SPEED, A ROCK DRIVING SHAFT, FIRST MEANS KEYED TO SAID ROCK SHAFT AND OPERATIVELY CONNECTED TO SAID DRIVING SHAFT IN A MANNER SUCH THAT SAID ROCK DRIVING SHAFT IS CAUSED TO PIVOT BACK AND FORTH ABOUT ITS LONGITUDINAL AXIS AT A SPEED WHICH VARIES WITHIN A COMPLETE REVOLUTION OF SAID DRIVING SHAFT WITH THE FORWARD PIVOTING ANGULAR VELOCITY EXCEEDING THE BACKWARD PIVOTING ANGULAR VELOCITY, SECOND MEANS INCLUDING A COUNTERBALANCING ARM FREELY MOUNTED TO SAID ROCK SHAFT FOR
Claim 2
Independent Claim
91 words
A DEVICE AT THE CLASS DESCRIBED COMPRISING A DRIVING SHAFT ROTATABLE AT CONSTANT ANGULAR SPEED, A ROCK DRIVING SHAFT, FIRST MEANS KEYED TO SAID ROCK SHAFT AND OPERATIVELY CONNECTED TO SAID DRIVING SHAFT IN A MANNER SUCH THAT SAID ROCK DRIVING SHAFT IS CAUSED TO PIVOT BACK AND FORTH ABOUT ITS LONGITUDINAL AXIS AT A SPEED WHICH VARIES WITHIN A COMPLETE REVOLUTION OF SAID DRIVING SHAFT WITH THE FORWARD PIVOTING ANGULAR VELOCITY EXCEEDING THE BACKWARD PIVOTING ANGULAR VELOCITY, SECOND MEANS INCLUDING A COUNTERBALANCING ARM FREELY MOUNTED TO SAID ROCK SHAFT FOR
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) | 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 |