US3096556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete pipe forming apparatus
Assignee: Individual
•
Filing: 1961-06-23
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Granted: 1963-07-09
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Expires: 1981-06-23
Abstract
No abstract record available.
Inventors
- 👤 Randell C Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:30
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/02; B28B21/10; B28B21/22; B28B21/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A CONCRETE PIPE FORMING APPARATUS COMPRISING A GENERALLY CYLINDRICAL STATIONARY OUTER FORM, A ROTARY SHAFT MOUNTED AXIALLY IN SAID OUTER FORM, A FIRST FORMING DRUM SECURED ON THE LOWER END PORTION OF SAID SHAFT, A SLEEVE MEMBER COAXIALLY JOURNALED ON SAID SHAFT ABOVE SAID FIRST FORMING DRUM, A SECOND FORMING DRUM MOUNTED ON SAID SLEEVE MEMBER AND BEING SMALLER IN DIAMETER THAN SAID FIRST-FORMING DRUM, MEANS DRIVINGLY CONNECTED TO AND ROTATING SAID ROTARY SHAFT IN ONE DIRECTION, MEANS DRIVINGLY CONNECTED TO AND ROTATING SAID SLEEVE MEMBER SIMULTANOUSLY IN THE OPPOSITE DIRECTION, AND AN ADDITIONAL FORMING DRUM JOURNALED ECCENTRICALLY ON SAID SHAFT BETWEEN SAID FIRST FORMING DRUM AND SAID SECOND FORMING DRUM.
Claim 2
Dependent Claim
111 words
A CONCRETE PIPE FORMING APPARATUS COMPRISING A GENERALLY CYLINDRICAL STATIONARY OUTER FORM, A ROTARY SHAFT MOUNTED AXIALLY IN SAID OUTER FORM, A FIRST FORMING DRUM SECURED ON THE LOWER END PORTION OF SAID SHAFT, A SLEEVE MEMBER COAXIALLY JOURNALED ON SAID SHAFT ABOVE SAID FIRST FORMING DRUM, A SECOND FORMING DRUM MOUNTED ON SAID SLEEVE MEMBER AND BEING SMALLER IN DIAMETER THAN SAID FIRST-FORMING DRUM, MEANS DRIVINGLY CONNECTED TO AND ROTATING SAID ROTARY SHAFT IN ONE DIRECTION, MEANS DRIVINGLY CONNECTED TO AND ROTATING SAID SLEEVE MEMBER SIMULTANOUSLY IN THE OPPOSITE DIRECTION, AND AN ADDITIONAL FORMING DRUM JOURNALED ECCENTRICALLY ON SAID SHAFT BETWEEN SAID FIRST FORMING DRUM AND SAID SECOND FORMING DRUM.
References Cited (Backward Citations)
FR717670A
Cited
US1895740A
Cited
US1977257A
Cited
US1988329A
Cited
US2751657A
Cited
US2892218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |