Patent US3414693A successfully refreshed from Google Patents.
US3414693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder head limit switch assembly
Assignee: Tomkins Johnson Co
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Filing: 1966-04-29
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Granted: 1968-12-03
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Expires: 1986-04-29
Abstract
No abstract record available.
Inventors
- 👤 Tindale P Watson
- 👤 Robert D Vandenburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:11
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H13/14; H01H13/18; F; F01; F01B; F01B17/00; F01B17/02; F15; F15B; F15B15/00; F15B15/20; F15B15/28; F15B15/2807; F15B15/2892
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
EXPANSIBLE CHAMBER MOTOR APPARATUS COMPRISING, IN COMBINATION, A CYLINDER HAVING AN END, A HEAD ENCLOSING SAID CYLINDER END AND MOUNTED THEREON, SAID HEAD INCLUDING AN EXTERIOR SURFACE AND AN INNER SURFACE, PISTON STRUCTURE RECIPROCABLY MOUNTED WITHIN SAID CYLINDER, AN ACTUATING SURFACE DEFINED ON SAID PISTON STRUCTURE DISPOSED TOWARD SAID HEAD WHEREBY SAID SURFACE IS LOCATED ADJACENT SAID HEAD INNER SURFACE UPON SAID PISTON STRUCTURE BEING LOCATED ADJACENT SAID HEAD, A THREADED OPENING DEFINED IN SAID HEAD INTERSECTING SAID HEAD EXTERIOR SURFACE, A SMOOTH CYLINDRICAL FIRST BORE DEFINED IN SAID HEAD COAXIAL WITH AND INTERSECTING SAID THREADED OPENING AND SAID HEAD INNER SURFACE, A RADIAL SHOULDER DEFINED IN SAID OPENING AT THE INTERSECTION OF SAID OPENING AND BORE, SAID BORE BEING OF LESSER DIAMETER THAN SAID OPENING, A CYLINDRICAL CASING HAVING AN INNER END AND AN OUTER END AND A THREADED OUTER SURFACE RECEIVED WITHIN SAID THREADED OPENING, SAID CASING INNER END BEING DISPOSED ADJACENT SAID RADIAL SHOULDER AND CASING BEING OF GREATER AXIAL LENGTH THAN SAID OPENING WHEREBY SAID CASING OUTER END EXTENDS FROM SAID OPENING AND PROJECTS BEYOND SAID HEAD EXTERIOR SURFACE, A CYLINDRICAL CHAMBER DEFINED IN SAID CASING COAXIAL THERE-
Claim 2
Dependent Claim
192 words
EXPANSIBLE CHAMBER MOTOR APPARATUS COMPRISING, IN COMBINATION, A CYLINDER HAVING AN END, A HEAD ENCLOSING SAID CYLINDER END AND MOUNTED THEREON, SAID HEAD INCLUDING AN EXTERIOR SURFACE AND AN INNER SURFACE, PISTON STRUCTURE RECIPROCABLY MOUNTED WITHIN SAID CYLINDER, AN ACTUATING SURFACE DEFINED ON SAID PISTON STRUCTURE DISPOSED TOWARD SAID HEAD WHEREBY SAID SURFACE IS LOCATED ADJACENT SAID HEAD INNER SURFACE UPON SAID PISTON STRUCTURE BEING LOCATED ADJACENT SAID HEAD, A THREADED OPENING DEFINED IN SAID HEAD INTERSECTING SAID HEAD EXTERIOR SURFACE, A SMOOTH CYLINDRICAL FIRST BORE DEFINED IN SAID HEAD COAXIAL WITH AND INTERSECTING SAID THREADED OPENING AND SAID HEAD INNER SURFACE, A RADIAL SHOULDER DEFINED IN SAID OPENING AT THE INTERSECTION OF SAID OPENING AND BORE, SAID BORE BEING OF LESSER DIAMETER THAN SAID OPENING, A CYLINDRICAL CASING HAVING AN INNER END AND AN OUTER END AND A THREADED OUTER SURFACE RECEIVED WITHIN SAID THREADED OPENING, SAID CASING INNER END BEING DISPOSED ADJACENT SAID RADIAL SHOULDER AND CASING BEING OF GREATER AXIAL LENGTH THAN SAID OPENING WHEREBY SAID CASING OUTER END EXTENDS FROM SAID OPENING AND PROJECTS BEYOND SAID HEAD EXTERIOR SURFACE, A CYLINDRICAL CHAMBER DEFINED IN SAID CASING COAXIAL THERE-
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) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |