US4101138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket for internal combustion engines, incorporating locating pins
Assignee: Fiat SpA
•
Filing: 1977-11-21
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Granted: 1978-07-18
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Expires: 1997-11-21
Abstract
Abstract A vibration-dampening gasket of elastic material for interposition between upper and lower blocks of an internal combustion Diesel or Otto cycle engine has integral locating pins for force-fitting engagement in holes in the lower engine block and a greater thickness than a seat in which it is fitted so as to be compressed upon assembly of the engine.
Inventors
- 👤 Nicola Gaggiano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:17
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/061; F02; F02B; F02B1/00; F02B1/02; F02B1/04; F02B3/00; F02B3/06; Y; Y10; Y10S; Y10S277/00; Y10S277/916
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
73 words
In an internal combustion compression-ignition engine having upper and lower engine blocks, a vibration-damping gasket of elastic material for interposition between said engine blocks, wherein the gasket is formed In a single piece with a shape corresponding to that of the mating profile of the lower engine block, and wherein the gasket embodies locating pins, made of the same material as the gasket, for engagement in corresponding holes in the lower engine block.
Claim 2
Dependent Claim
73 words
In an internal combustion compression-ignition engine having upper and lower engine blocks, a vibration-damping gasket of elastic material for interposition between said engine blocks, wherein the gasket is formed In a single piece with a shape corresponding to that of the mating profile of the lower engine block, and wherein the gasket embodies locating pins, made of the same material as the gasket, for engagement in corresponding holes in the lower engine block.
Claim 3
Dependent Claim
44 words
A gasket of elastic material as defined in Claim 1, wherein the locating pins have an increased transverse dimension with respect to the holes in the lower engine block into which they fit so that they can be force-fitted with interference into said holes.
Claim 4
Dependent Claim
54 words
A gasket of elastic material as defined in Claim 1, wherein the thickness of the gasket is greater than that of a seat between the engine blocks in which the gasket fits, so that the gasket becomes compressed upon fitting and assembly of the engine to perform the double function of sealing and vibration-damping.
References Cited (Backward Citations)
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Cited
US1363119A
Cited
US1694291A
Cited
US2209403A
Cited
US3331610A
Cited
US3586338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |