US3229900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverse leakage seal for reciprocating parts
Assignee: Battelle Development Corp
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Filing: 1963-07-31
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Granted: 1966-01-18
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Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Rollin J Mccrory
- 👤 Jr Joseph H Mcninch
- 👤 Albert K Daggett
- 👤 Jr John B Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:33
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/40; F02; F02B; F02B71/00; F25; F25B; F25B31/00; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17564; Y10T279/17598; Y10T279/17606
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A SEAL CONSTRUCTION FOR RAPIDLY RECIPROCATING POSITIVE DISPLACEMENT GAS COMPRESSORS HAVING A CYLINDER AND A PISTON UNITARY RECIPROCABLE THEREIN, AND HAVING CLOSURE MEANS FOR ONE END OF SAID CYLINDER FORMING A COMPRESSOR CHAMBER IN CONJUNCTION WITH SAID CYLINDER AND THE CONTIGUOUS END OF SAID PISTON; COMPRISING: AN ANNULAR PERIPHERAL RECESS IN SAID PISTON FORMING AN ENCLOSURE IN CONJUNCTION WITH SAID CYLINDER; SAID ENCLOSURE ADAPTED TO CONTAIN A SEALING LIQUID; AN INLET IN THE WALL OF SAID CYLINDER IN COMMUNICATION WITH SAID ENCLOSURE AT ALL POSITIONS DURING SAID PISTON RECIPROCATION; SEPARATOR MEANS IN COMMUNICATION WITH THE DISCHARGE OF SAID COMPRESSOR CHAMBER; STRIPPER MEANS IN COMMUNICATION WITH SAID SEPARATOR MEANS THROUGH A VALVE OPERATED RESPONSIVELY TO THE LIQUID LEVEL IN SAID STRIPPER MEANS; PRESURE-RESPONSIVE DISCHARGE
Claim 2
Dependent Claim
123 words
A SEAL CONSTRUCTION FOR RAPIDLY RECIPROCATING POSITIVE DISPLACEMENT GAS COMPRESSORS HAVING A CYLINDER AND A PISTON UNITARY RECIPROCABLE THEREIN, AND HAVING CLOSURE MEANS FOR ONE END OF SAID CYLINDER FORMING A COMPRESSOR CHAMBER IN CONJUNCTION WITH SAID CYLINDER AND THE CONTIGUOUS END OF SAID PISTON; COMPRISING: AN ANNULAR PERIPHERAL RECESS IN SAID PISTON FORMING AN ENCLOSURE IN CONJUNCTION WITH SAID CYLINDER; SAID ENCLOSURE ADAPTED TO CONTAIN A SEALING LIQUID; AN INLET IN THE WALL OF SAID CYLINDER IN COMMUNICATION WITH SAID ENCLOSURE AT ALL POSITIONS DURING SAID PISTON RECIPROCATION; SEPARATOR MEANS IN COMMUNICATION WITH THE DISCHARGE OF SAID COMPRESSOR CHAMBER; STRIPPER MEANS IN COMMUNICATION WITH SAID SEPARATOR MEANS THROUGH A VALVE OPERATED RESPONSIVELY TO THE LIQUID LEVEL IN SAID STRIPPER MEANS; PRESURE-RESPONSIVE DISCHARGE
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |