US3887467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil cooler and filter container for engine
Assignee: Individual
•
Filing: 1973-10-01
•
Granted: 1975-06-03
•
Expires: 1993-10-01
Abstract
Abstract A unit fits on a spin-type oil filter mount. The case of this unit holds a replaceable cartridge filter and the exterior wall is finned. The oil flow through the unit is directed along the fins to cool the oil and through the filter to clean the oil.
Inventors
- 👤 Andrew L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:09
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/18; B01D29/00; B01D29/11; F; F01; F01M; F01M11/00; F01M11/03; F01M2011/031; F01M2011/033
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
245 words
In an oil filter apparatus for an internal combustion engine or the like, which apparatus includes a filter, a case about said filter, said case includes means whereby the oil is directed to flow in a path with the filter being transverse to a first part of said path so that the oil normally flows through the filter, the improvement comprising: said means including a first wall about at least part of the periphery of the case and a second wall within said first wall, said walls defining a space therebetween which space is a second part of said path, said filter being within said second wall, said first wall including fin means to increase the heat transfer area of the wall, said fin means being in the form of corrugations in the first wall thereby increasing the surface area on both the interior and exterior of the wall, said filter being a replaceable cartridge filter having two ends, said second wall having two inwardly extending annular bands with spaced openings through the bands, said first wall covering said bands, said case having means positioning said filter in a given location in said case such that said path and the openings in one band are beyond one end of the filter, said case being in separable parts with the line of separation extending other than through said first wall whereby access may be obtained to the interior of the case for replacement of the filter.
Claim 2
Dependent Claim
245 words
In an oil filter apparatus for an internal combustion engine or the like, which apparatus includes a filter, a case about said filter, said case includes means whereby the oil is directed to flow in a path with the filter being transverse to a first part of said path so that the oil normally flows through the filter, the improvement comprising: said means including a first wall about at least part of the periphery of the case and a second wall within said first wall, said walls defining a space therebetween which space is a second part of said path, said filter being within said second wall, said first wall including fin means to increase the heat transfer area of the wall, said fin means being in the form of corrugations in the first wall thereby increasing the surface area on both the interior and exterior of the wall, said filter being a replaceable cartridge filter having two ends, said second wall having two inwardly extending annular bands with spaced openings through the bands, said first wall covering said bands, said case having means positioning said filter in a given location in said case such that said path and the openings in one band are beyond one end of the filter, said case being in separable parts with the line of separation extending other than through said first wall whereby access may be obtained to the interior of the case for replacement of the filter.
Claim 3
Dependent Claim
245 words
In an oil filter apparatus for an internal combustion engine or the like, which apparatus includes a filter, a case about said filter, said case includes means whereby the oil is directed to flow in a path with the filter being transverse to a first part of said path so that the oil normally flows through the filter, the improvement comprising: said means including a first wall about at least part of the periphery of the case and a second wall within said first wall, said walls defining a space therebetween which space is a second part of said path, said filter being within said second wall, said first wall including fin means to increase the heat transfer area of the wall, said fin means being in the form of corrugations in the first wall thereby increasing the surface area on both the interior and exterior of the wall, said filter being a replaceable cartridge filter having two ends, said second wall having two inwardly extending annular bands with spaced openings through the bands, said first wall covering said bands, said case having means positioning said filter in a given location in said case such that said path and the openings in one band are beyond one end of the filter, said case being in separable parts with the line of separation extending other than through said first wall whereby access may be obtained to the interior of the case for replacement of the filter.
Claim 4
Dependent Claim
245 words
In an oil filter apparatus for an internal combustion engine or the like, which apparatus includes a filter, a case about said filter, said case includes means whereby the oil is directed to flow in a path with the filter being transverse to a first part of said path so that the oil normally flows through the filter, the improvement comprising: said means including a first wall about at least part of the periphery of the case and a second wall within said first wall, said walls defining a space therebetween which space is a second part of said path, said filter being within said second wall, said first wall including fin means to increase the heat transfer area of the wall, said fin means being in the form of corrugations in the first wall thereby increasing the surface area on both the interior and exterior of the wall, said filter being a replaceable cartridge filter having two ends, said second wall having two inwardly extending annular bands with spaced openings through the bands, said first wall covering said bands, said case having means positioning said filter in a given location in said case such that said path and the openings in one band are beyond one end of the filter, said case being in separable parts with the line of separation extending other than through said first wall whereby access may be obtained to the interior of the case for replacement of the filter.
Claim 5
Dependent Claim
101 words
In an oil filter apparatus as set forth in claim 1, wherein the case has a detachable mount at one end thereof with oil input and outlet openings at said end of the case, the improvement wherein said case is in two main parts, one part being said end and being relatively flat, the other part being in the form of a deep dish member, including an axial bolt holding the two parts together, said one end of the filter being adjacent said one end of the case and defining a space between said ends through which space said path passes.
Claim 6
Dependent Claim
208 words
In an oil filter apparatus for an internal combustion engine or the like, which apparatus includes a filter, a case about said filter, said case includes means whereby the oil is directed to flow in a path with the filter being transverse to a first part of said path so that the oil normally flows through the filter, the improvement comprising: said means including a first wall about at least part of the periphery of the case and a second wall within said first wall, said walls defining a space therebetween which space is a second part of said path, said filter being within said second wall said filter being a replaceable cartridge filter having two ends, said second wall has two inwardly extending annular bands with spaced openings through the bands, said first wall covering said bands, said case having means including said bands positioning said cartridge filter in a given location within said second wall such that said path and the opening in one band are beyond one end of the filter, said case being in separable parts with the line of separation extending other than through said first wall whereby access may be obtained to the interior of the case for replacement of the filter.
Claim 7
Dependent Claim
208 words
In an oil filter apparatus for an internal combustion engine or the like, which apparatus includes a filter, a case about said filter, said case includes means whereby the oil is directed to flow in a path with the filter being transverse to a first part of said path so that the oil normally flows through the filter, the improvement comprising: said means including a first wall about at least part of the periphery of the case and a second wall within said first wall, said walls defining a space therebetween which space is a second part of said path, said filter being within said second wall said filter being a replaceable cartridge filter having two ends, said second wall has two inwardly extending annular bands with spaced openings through the bands, said first wall covering said bands, said case having means including said bands positioning said cartridge filter in a given location within said second wall such that said path and the opening in one band are beyond one end of the filter, said case being in separable parts with the line of separation extending other than through said first wall whereby access may be obtained to the interior of the case for replacement of the filter.
Claim 8
Dependent Claim
168 words
In an oil filter apparatus which includes a case having an annular wall about an axis and two ends with one of said ends forming a detachable mount with oil inlet and outlet communication openings therein, an annular filter within said case, said case and filter being arranged so that the oil flows between a first space at the interior of the filter and a second space between the exterior of the filter and said annular wall, the improvement comprising: said case means having portions defining an oil path from one of said spaces to one of said openings without passing through said filter, said portions of said means defining a heat exchanger for the cooling of the oil moving in said path, said portions including an exterior wall about part of said annular wall and defining a third space therebetween having two ends axially spaced from each other, said oil path extending through said third space from adjacent one end thereof to adjacent the other end thereof.
Claim 9
Dependent Claim
168 words
In an oil filter apparatus which includes a case having an annular wall about an axis and two ends with one of said ends forming a detachable mount with oil inlet and outlet communication openings therein, an annular filter within said case, said case and filter being arranged so that the oil flows between a first space at the interior of the filter and a second space between the exterior of the filter and said annular wall, the improvement comprising: said case means having portions defining an oil path from one of said spaces to one of said openings without passing through said filter, said portions of said means defining a heat exchanger for the cooling of the oil moving in said path, said portions including an exterior wall about part of said annular wall and defining a third space therebetween having two ends axially spaced from each other, said oil path extending through said third space from adjacent one end thereof to adjacent the other end thereof.
Claim 10
Dependent Claim
58 words
In an apparatus as set forth in claim 4, wherein said exterior wall is formed of three components, two end rings and an annular shell, said end rings being bonded to the annular shell and the annular wall, said shell defining a plurality of corrugations extending parallel to said axis, said rings covering the ends of said corrugations.
Claim 11
Dependent Claim
69 words
In an apparatus as set forth in claim 5, wherein said filter includes a cover plate at one end thereof, the improvement comprising: said annular wall having an inwardly extending annular band seated against said cover plate, said annular wall having openings therethrough positioned beyond said cover plate in the direction away from said filter, said openings extending from the interior of the annular wall into said second space.
Claim 12
Dependent Claim
182 words
In an apparatus for an internal combustion engine or the like for filtering the engine oil and utilizing a fluid medium, such as air, to also cool the engine oil, which apparatus includes an annular filter, a case about said filter, said case includes means whereby the oil is directed to flow in a path with the filter being transverse to a first part of said path so that the oil normally flows through the filter, the improvement comprising: said means including a first wall about at least part of the periphery of the case and an annular second wall within said first wall, said walls defining a space therebetween which space is a second part of said path, said filter being within said second wall, said first wall being comprised of three components, namely two end rings and a generally annular shell, said annular shell being corrugated sheet metal whereby the inner and outer surface areas of the shell are increased for greater contact with oil on the inside of the shell and said medium on the outside of the shell.
Claim 13
Dependent Claim
182 words
In an apparatus for an internal combustion engine or the like for filtering the engine oil and utilizing a fluid medium, such as air, to also cool the engine oil, which apparatus includes an annular filter, a case about said filter, said case includes means whereby the oil is directed to flow in a path with the filter being transverse to a first part of said path so that the oil normally flows through the filter, the improvement comprising: said means including a first wall about at least part of the periphery of the case and an annular second wall within said first wall, said walls defining a space therebetween which space is a second part of said path, said filter being within said second wall, said first wall being comprised of three components, namely two end rings and a generally annular shell, said annular shell being corrugated sheet metal whereby the inner and outer surface areas of the shell are increased for greater contact with oil on the inside of the shell and said medium on the outside of the shell.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |