Patent US3371525A successfully refreshed from Google Patents.
US3371525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder firing pressure apparatus
Assignee: Stewart and Stevenson Services Inc
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Filing: 1966-02-04
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Granted: 1968-03-05
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Expires: 1986-02-04
Abstract
No abstract record available.
Inventors
- 👤 Robert W Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:05
CPC Classifications
G; G01; G01L; G01L23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN COMBINATION WITH A DIESEL ENGINE HAVING A CYLINDER AND HEAD, THE IMPROVEMENT OF A CYLINDER FIRING PRESSURE APPARATUS COMPRISING, A PASSAGEWAY IN THE CYLINDER HEAD IN COMMUNICATION WITH THE CYLINDER AND EXTENDING THROUGH SAID HEAD, AN ELONGATE TUBULAR ADAPTER BODY SECURED IN SAID PASSAGEWAY AND INCLUDING AN OPENING THERETHROUGH IN COMMUNICATION WITH SAID PASSAGEWAY AND CYLINDER, SAID BODY INCLUDING PRESSURE GAUGE RELEASABLE CONNECTING MEANS FOR RECEIVING A PRESSURE GAUGE FOR MAKING FIRING PRESSURE TESTS, A STEM ADAPTED TO EXTEND THROUGH AND SUBSTANTIALLY FILLING SAID OPENING FOR REDUCING THE VOLUME OF THE OPENING IN COMMUNICATION WITH THE CYLINDER WHEN TESTING IS COMPLETED AND ADAPTED TO BE REMOVED FROM SAID OPENING WHEN MAKING PRESSURE TESTS, AND
Claim 2
Dependent Claim
115 words
IN COMBINATION WITH A DIESEL ENGINE HAVING A CYLINDER AND HEAD, THE IMPROVEMENT OF A CYLINDER FIRING PRESSURE APPARATUS COMPRISING, A PASSAGEWAY IN THE CYLINDER HEAD IN COMMUNICATION WITH THE CYLINDER AND EXTENDING THROUGH SAID HEAD, AN ELONGATE TUBULAR ADAPTER BODY SECURED IN SAID PASSAGEWAY AND INCLUDING AN OPENING THERETHROUGH IN COMMUNICATION WITH SAID PASSAGEWAY AND CYLINDER, SAID BODY INCLUDING PRESSURE GAUGE RELEASABLE CONNECTING MEANS FOR RECEIVING A PRESSURE GAUGE FOR MAKING FIRING PRESSURE TESTS, A STEM ADAPTED TO EXTEND THROUGH AND SUBSTANTIALLY FILLING SAID OPENING FOR REDUCING THE VOLUME OF THE OPENING IN COMMUNICATION WITH THE CYLINDER WHEN TESTING IS COMPLETED AND ADAPTED TO BE REMOVED FROM SAID OPENING WHEN MAKING PRESSURE TESTS, AND
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |