US3146879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pushing apparatus
Assignee: Midland Ross Corp
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Filing: 1962-10-17
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Granted: 1964-09-01
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Expires: 1982-10-17
Abstract
No abstract record available.
Inventors
- 👤 Montagino Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:40
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
PUSHING APPARATUS COMPRISING, IN COMBINATION: A LONG SCREW; BEARING MEANS FOR MOUNTING THE SCREW; DRIVE MEANS COMPRISING A PNEUMATIC MOTOR FOR ROTATING THE SCREW IN ONE DIRECTION AND THEN IN THE OTHER; A NUT THREADED ONTO THE SCREW AND ADAPTED TO MOVE LINEARLY TO AND FRO AS THE SCREW IS ROTATED IN ONE DIRECTION AND THEN IN THE OTHER; CASING MEANS CIRCUMPOSING AT LEAST A PORTION OF THE SCREW AND FORMING A SLOT WHOSE AXIS EXTENDS PARALLEL TO THE AXIS OF THE SCREW; A CROSSHEAD ATTACHED TO THE NUT AND ADAPTED TO MOVE LINEARLY THEREWITH AND COMPRISING A PORTION EXTENDING OUTWARDLY FROM THE NUT THROUGH THE SLOT; A SLEEVE ATTACHED TO THE PORTION OF THE CROSSHEAD EXTENDING THROUGH THE SLOT, SAID SLEEVE CIRCUMPOSING THE CASING MEANS AND FORMING A CLOSE MOVING FIT THEREWITH; PUSHER HEAD MEANS; A FIRST LONG ROD HAVING ONE END OPERATIVELY AFFIXED TO THE SLEEVE AND THE OTHER END ATTACHED TO THE PUSHER HEAD MEANS; AND A SECOND LONG ROD SPACED APART FROM THE FIRST LONG ROD, EXTENDING GENERALLY PARALLEL THERETO, HAVING ONE END OPERATIVELY FIXED TO THE SLEEVE, AND HAVING THE OTHER END ATTACHED TO THE PUSHER HEAD MEANS.
Claim 2
Dependent Claim
193 words
PUSHING APPARATUS COMPRISING, IN COMBINATION: A LONG SCREW; BEARING MEANS FOR MOUNTING THE SCREW; DRIVE MEANS COMPRISING A PNEUMATIC MOTOR FOR ROTATING THE SCREW IN ONE DIRECTION AND THEN IN THE OTHER; A NUT THREADED ONTO THE SCREW AND ADAPTED TO MOVE LINEARLY TO AND FRO AS THE SCREW IS ROTATED IN ONE DIRECTION AND THEN IN THE OTHER; CASING MEANS CIRCUMPOSING AT LEAST A PORTION OF THE SCREW AND FORMING A SLOT WHOSE AXIS EXTENDS PARALLEL TO THE AXIS OF THE SCREW; A CROSSHEAD ATTACHED TO THE NUT AND ADAPTED TO MOVE LINEARLY THEREWITH AND COMPRISING A PORTION EXTENDING OUTWARDLY FROM THE NUT THROUGH THE SLOT; A SLEEVE ATTACHED TO THE PORTION OF THE CROSSHEAD EXTENDING THROUGH THE SLOT, SAID SLEEVE CIRCUMPOSING THE CASING MEANS AND FORMING A CLOSE MOVING FIT THEREWITH; PUSHER HEAD MEANS; A FIRST LONG ROD HAVING ONE END OPERATIVELY AFFIXED TO THE SLEEVE AND THE OTHER END ATTACHED TO THE PUSHER HEAD MEANS; AND A SECOND LONG ROD SPACED APART FROM THE FIRST LONG ROD, EXTENDING GENERALLY PARALLEL THERETO, HAVING ONE END OPERATIVELY FIXED TO THE SLEEVE, AND HAVING THE OTHER END ATTACHED TO THE PUSHER HEAD MEANS.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |