Patent US3071794A successfully refreshed from Google Patents.
US3071794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel feed mechanism for feeding and rotating sewer cleaning tool drive rod
Assignee: Flexible Sewer Tool Corp
•
Filing: 1960-08-30
•
Granted: 1963-01-08
•
Expires: 1980-08-30
Abstract
No abstract record available.
Inventors
- 👤 Charles J Prange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:13
CPC Classifications
E; E03; E03F; E03F9/00; E03F9/002; E03F9/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A SEWER TOOL DRIVE ROD FEEDING AND ROTATING APPARATUS: A FRAME; A REEL UNIT AND A FEED UNIT MOUNTED IN SAID FRAME FOR INDEPENDENT ROTATION ON A COMMON AXIS; SAID REEL UNIT INCLUDING A REEL SADDLE ON WHICH COILS OF SAID DRIVE ROD MAY BE WOUND; SAID FEED UNIT INCLUDING A BACK PORTION DISPOSED FORWARDLY OF AND ADJACENT TO SAID REEL SADDLE AND INCLUDING MEANS FOR GUIDING SAID DRIVE ROD FROM THE PERIPHERY OF SAID REEL SADDLE PAST THE PERIPHERY OF SAID BACK PORTION, THENCE INWARDLY TO A POINT ADJACENT THE COMMON AXIS OF ROTATION OF SAID REEL AND FEED UNITS, AND THENCE AXIALLY FORWARDLY FROM THE FORWARD ENDS OF SAID REEL AND FEED UNITS; AND MEANS FOR INDEPENDENTLY DRIVING SAID REEL UNIT AND FEED UNIT DIFFERENTIALLY IN A COMMON ROTATIONAL DIRECTION, WHEREBY TO PROJECT SAID DRIVE ROD WHILE ROTATING IT IN A SINGLE DIRECTION OF ROTATION.
Claim 2
Dependent Claim
148 words
IN A SEWER TOOL DRIVE ROD FEEDING AND ROTATING APPARATUS: A FRAME; A REEL UNIT AND A FEED UNIT MOUNTED IN SAID FRAME FOR INDEPENDENT ROTATION ON A COMMON AXIS; SAID REEL UNIT INCLUDING A REEL SADDLE ON WHICH COILS OF SAID DRIVE ROD MAY BE WOUND; SAID FEED UNIT INCLUDING A BACK PORTION DISPOSED FORWARDLY OF AND ADJACENT TO SAID REEL SADDLE AND INCLUDING MEANS FOR GUIDING SAID DRIVE ROD FROM THE PERIPHERY OF SAID REEL SADDLE PAST THE PERIPHERY OF SAID BACK PORTION, THENCE INWARDLY TO A POINT ADJACENT THE COMMON AXIS OF ROTATION OF SAID REEL AND FEED UNITS, AND THENCE AXIALLY FORWARDLY FROM THE FORWARD ENDS OF SAID REEL AND FEED UNITS; AND MEANS FOR INDEPENDENTLY DRIVING SAID REEL UNIT AND FEED UNIT DIFFERENTIALLY IN A COMMON ROTATIONAL DIRECTION, WHEREBY TO PROJECT SAID DRIVE ROD WHILE ROTATING IT IN A SINGLE DIRECTION OF ROTATION.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |