US3155330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting device for manure pumps
Assignee: Individual
•
Filing: 1963-02-11
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Granted: 1964-11-03
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 Holz Otto
- 👤 Holz Franz
- 👤 Zoller Hans
- 👤 Streicher Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:41
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/04; F04D7/045; B; B02; B02C; B02C18/00; B02C18/0084; B02C18/0092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN COMBINATION, A MANURE PUMP HAVING A CASING AND A ROTARY DRIVE SHAFT EXTENDING THERETHROUGH, SAID CASING HAVING A SUCTION OPENING POSITIONED CONCENTRICALLY ABOUT SAID SHAFT ADJACENT THE INLET SIDE OF THE PUMP, A CUTTER BLADE MOUNTED ON SAID SHAFT AT THE INLET TO THE PUMP AND ROTATABLE BY THE SHAFT WITH SAID CUTTER BLADE HAVING SHEARING EDGES IN THE DIRECTION OF ROTATION OF THE BLADE, RIBS RIGIDLY MOUNTED WITH RESPECT TO SAID CASING ADJACENT TO THE CUTTER BLADE AND EXTENDING ACROSS SAID OPENING IN A PLANE AT RIGHT ANGLES TO SAID SHAFT, SAID RIBS DEFINING ELONGATED TRIANGULAR OPENINGS ARRANGED ABOUT SAID SHAFT IN THE DIRECTION OF ROTATION THEREOF, THE RIB FORMING THE SHORT SIDE OF EACH OF SAID ELOGATED TRIANGULAR OPENINGS FACING THE SHEARING EDGE OF SAID ROTATABLE BLADE AND HAVING A SHEARING EDGE COOPERATING WITH THE SHEARING EDGE OF THE BLADE, AND ONE OF SAID SHEARING EDGES HAVING ALTERNATELY ARRANGED PROJECTIONS AND RECESSES
Claim 2
Dependent Claim
155 words
IN COMBINATION, A MANURE PUMP HAVING A CASING AND A ROTARY DRIVE SHAFT EXTENDING THERETHROUGH, SAID CASING HAVING A SUCTION OPENING POSITIONED CONCENTRICALLY ABOUT SAID SHAFT ADJACENT THE INLET SIDE OF THE PUMP, A CUTTER BLADE MOUNTED ON SAID SHAFT AT THE INLET TO THE PUMP AND ROTATABLE BY THE SHAFT WITH SAID CUTTER BLADE HAVING SHEARING EDGES IN THE DIRECTION OF ROTATION OF THE BLADE, RIBS RIGIDLY MOUNTED WITH RESPECT TO SAID CASING ADJACENT TO THE CUTTER BLADE AND EXTENDING ACROSS SAID OPENING IN A PLANE AT RIGHT ANGLES TO SAID SHAFT, SAID RIBS DEFINING ELONGATED TRIANGULAR OPENINGS ARRANGED ABOUT SAID SHAFT IN THE DIRECTION OF ROTATION THEREOF, THE RIB FORMING THE SHORT SIDE OF EACH OF SAID ELOGATED TRIANGULAR OPENINGS FACING THE SHEARING EDGE OF SAID ROTATABLE BLADE AND HAVING A SHEARING EDGE COOPERATING WITH THE SHEARING EDGE OF THE BLADE, AND ONE OF SAID SHEARING EDGES HAVING ALTERNATELY ARRANGED PROJECTIONS AND RECESSES
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |