US3233554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air compressor
Assignee: Aero Spray Inc
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Filing: 1963-06-21
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Granted: 1966-02-08
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Expires: 1983-06-21
Abstract
No abstract record available.
Inventors
- 👤 Huber Vincent John
- 👤 James S Mccartney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:22
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/02; F04B25/00; F04B25/005; F04B39/00; F04B39/0005; F04B39/0016; F04B39/04; F04B39/041; F04B39/10; F04B39/1073; Y; Y10; Y10S; Y10S417/00; Y10S417/01; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN A PUMP UNIT, A HOUSING HAVING AN ALIGNED CYLINDER CHAMBER AT EACH AXIAL END, A PISTON ASSEMBLY IN SAID HOUSING INCLUDING A PISTON IN EACH CHAMBER AND A CONNECTION ROD OF A SMALLER TRANSVERSE DIMENSION THAN THE DIAMETER OF THE PISTONS CONNECTING SAID PISTONS, SAID PISTONS HAVING SPACED, AXIALLY ADJACENT ANNULAR SURFACE PORTIONS RADIALLY OUTWARDLY OF SAID ROD, DRIVE MEANS FOR BOTH ROTATING AND AXIALLY RECIPROCATING SAID PISTONS IN SAID CYLINDER CHAMBERS, SAID DRIVE MEANS INCLUDING A MOTOR HAVING A MOTOR SHAFT AND MEANS MOUNTED ON SAID MOTOR SHAFT FOR BEARING AGAINST SAID ANNULAR SURFACE PORTIONS AND COOPERATING THEREWITH TO ROTATE AND RECIPROCATE SAID PISTONS AS THE MOTOR SHAFT IS ROTATED, THE LAST MENTIONED MEANS AND MOTOR SHAFT BEING LOCATED RADIALLY OUTWARDLY OF SAID ROD, AND MEANS AT OPPOSITE AXIAL ENDS OF THE HOUSING FOR VALVING SAID CHAMBERS TO DRAW FLUID INTO ONE
Claim 2
Dependent Claim
144 words
IN A PUMP UNIT, A HOUSING HAVING AN ALIGNED CYLINDER CHAMBER AT EACH AXIAL END, A PISTON ASSEMBLY IN SAID HOUSING INCLUDING A PISTON IN EACH CHAMBER AND A CONNECTION ROD OF A SMALLER TRANSVERSE DIMENSION THAN THE DIAMETER OF THE PISTONS CONNECTING SAID PISTONS, SAID PISTONS HAVING SPACED, AXIALLY ADJACENT ANNULAR SURFACE PORTIONS RADIALLY OUTWARDLY OF SAID ROD, DRIVE MEANS FOR BOTH ROTATING AND AXIALLY RECIPROCATING SAID PISTONS IN SAID CYLINDER CHAMBERS, SAID DRIVE MEANS INCLUDING A MOTOR HAVING A MOTOR SHAFT AND MEANS MOUNTED ON SAID MOTOR SHAFT FOR BEARING AGAINST SAID ANNULAR SURFACE PORTIONS AND COOPERATING THEREWITH TO ROTATE AND RECIPROCATE SAID PISTONS AS THE MOTOR SHAFT IS ROTATED, THE LAST MENTIONED MEANS AND MOTOR SHAFT BEING LOCATED RADIALLY OUTWARDLY OF SAID ROD, AND MEANS AT OPPOSITE AXIAL ENDS OF THE HOUSING FOR VALVING SAID CHAMBERS TO DRAW FLUID INTO ONE
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |