Patent US4361207A successfully refreshed from Google Patents.
US4361207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for draining engine crankcase
Assignee: ROLAND SYLVESTRE
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Filing: 1980-11-07
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Granted: 1982-11-30
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Expires: 2000-11-07
Abstract
Abstract Oil draining apparatus for an engine having a spin-on oil filter mounting pad, the apparatus comprising an adapter housing attachable to the pad, the housing having inlet and outlet openings for enabling oil to be pumped from the engine into the housing through the mounting pad oil outlet and drained out of the housing away from the engine while the engine is running. The housing is arranged to permit some oil to return to the engine while it is running until the oil is drained.
Inventors
- 👤 Roland Sylvestre
- 👤 Vallier Paradis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:09
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/04; F01M11/0408; F01M11/03; F01M1/00; F01M1/10; F01M2001/1007; F01M2001/1014
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
Oil draining apparatus for an engine having a spin-on filter mounting pad including a mounting post constituting an oil return line, and an oil outlet port or ports, said apparatus comprising an adapter housing having an open internal volume, a threaded first outlet port at one end of said housing in communication with said volume and arranged to permit the housing to be mounted on the oil filter post of the engine, at least one inlet port in communication with said volume and arranged to communicate with the outlet port or ports at the mounting pad, when the housing is mounted on the pad, and a second outlet port in communication with said volume spaced away from said first outlet port.
Claim 2
Dependent Claim
121 words
Oil draining apparatus for an engine having a spin-on filter mounting pad including a mounting post constituting an oil return line, and an oil outlet port or ports, said apparatus comprising an adapter housing having an open internal volume, a threaded first outlet port at one end of said housing in communication with said volume and arranged to permit the housing to be mounted on the oil filter post of the engine, at least one inlet port in communication with said volume and arranged to communicate with the outlet port or ports at the mounting pad, when the housing is mounted on the pad, and a second outlet port in communication with said volume spaced away from said first outlet port.
Claim 3
Dependent Claim
26 words
Engine oil draining apparatus as claimed in claim 1, said second outlet port being located towards the end of the housing opposite said first outlet port.
Claim 4
Dependent Claim
33 words
Engine oil draining apparatus as claimed in claim 1 or 2, said second outlet port being smaller in cross sectional area than the total cross sectional area of said inlet port or ports.
Claim 5
Independent Claim
113 words
A method of draining crankcase oil from an engine having an oil pump and a spin-oil filter mounting pad including oil outlet and return ports associated therewith, comprising: (a) starting and running the engine; (b) using the engine oil pump to pump oil from the crankcase out through the oil outlet port into an adapter housing mounted on the oil filter mounting pad; (c) permitting a portion of the pumped oil to flow back to the engine from the housing through the return port, (d) draining a portion of pumped oil out of the housing away from the engine; and (e) stopping the engine when oil ceases to flow out from the housing.
Claim 6
Independent Claim
113 words
A method of draining crankcase oil from an engine having an oil pump and a spin-oil filter mounting pad including oil outlet and return ports associated therewith, comprising: (a) starting and running the engine; (b) using the engine oil pump to pump oil from the crankcase out through the oil outlet port into an adapter housing mounted on the oil filter mounting pad; (c) permitting a portion of the pumped oil to flow back to the engine from the housing through the return port, (d) draining a portion of pumped oil out of the housing away from the engine; and (e) stopping the engine when oil ceases to flow out from the housing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-29 | 1986-05-31 | 1986-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-29 | 1990-05-31 | 1990-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-29 | 1994-05-31 | 1994-11-30 | $7700.00 | Window Closed / Lapsed |