US3083391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocative mechanism for feeding sewer cleaner drive rod
Assignee: Flexible Sewer Tool Corp
•
Filing: 1961-03-08
•
Granted: 1963-04-02
•
Expires: 1981-03-08
Abstract
No abstract record available.
Inventors
- 👤 Charles J Prange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:49
CPC Classifications
E; E03; E03F; E03F9/00; E03F9/002; E03F9/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
SEWER DRIVE ROD FEEDING APPARATUS COMPRISING: A PLURALITY OF FEED HEADS ARRANGED IN AXIALLY SPACED RELATION FOR RECIPROCATION ON A COMMON FEED AXIS, EACH OF SAID HEADS HAVING UNIDIRECTIONAL DRIVE MEANS FOR CLUTCHING AND FEEDING A DRIVE ROD ALONG SAID FEED AXIS IN THE SAME DIRECTION; MEANS FOR RECIPROCATING SAID FEED HEADS IN UNISON IN OPPOSITE DIRECTIONS SO AS TO EFFECT RESPECTIVE FEED STROKES OF SAID HEADS IN ALTERNATING SUCCESSION IN RESPECTIVE PARTIAL
Claim 2
Dependent Claim
73 words
SEWER DRIVE ROD FEEDING APPARATUS COMPRISING: A PLURALITY OF FEED HEADS ARRANGED IN AXIALLY SPACED RELATION FOR RECIPROCATION ON A COMMON FEED AXIS, EACH OF SAID HEADS HAVING UNIDIRECTIONAL DRIVE MEANS FOR CLUTCHING AND FEEDING A DRIVE ROD ALONG SAID FEED AXIS IN THE SAME DIRECTION; MEANS FOR RECIPROCATING SAID FEED HEADS IN UNISON IN OPPOSITE DIRECTIONS SO AS TO EFFECT RESPECTIVE FEED STROKES OF SAID HEADS IN ALTERNATING SUCCESSION IN RESPECTIVE PARTIAL
References Cited (Backward Citations)
US1350994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |