US5024760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easily removable oil filter
Assignee: Individual
•
Filing: 1990-05-24
•
Granted: 1991-06-18
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Expires: 2010-05-24
Abstract
Abstract The addition of bracket type fins to the current design of internal combustion engine replaceable oil filters to enable the manual removal of the oil filter at the interval replacement time without the use of an oil filter wrench is the main point of my new design. The brackets can easily be added to current oil filter designs without substantially increasing production cost. This new design is for use with all sizes and types of engine oil filters.
Inventors
- 👤 John J. Kemper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:26
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; B01D35/14; Y; Y10; Y10S; Y10S210/00; Y10S210/17
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
74 words
In an oil automotive filter comprising an outer filter body and an internal filter material wherein the improvement comprises means for enabling wrench free installation and removal of said oil filter comprising 3 or more permanently attached brackets of suitable material, said brackets being equally spaced around the circumference of said oil filter body and having a length, wherein the length of the brackets is about 3/4 of the length of said filter body.
Claim 2
Dependent Claim
74 words
In an oil automotive filter comprising an outer filter body and an internal filter material wherein the improvement comprises means for enabling wrench free installation and removal of said oil filter comprising 3 or more permanently attached brackets of suitable material, said brackets being equally spaced around the circumference of said oil filter body and having a length, wherein the length of the brackets is about 3/4 of the length of said filter body.
Claim 3
Dependent Claim
11 words
The apparatus of claim 1 wherein said suitable material is metal.
Claim 4
Dependent Claim
17 words
The apparatus of claim 1 wherein said suitable material is the same material as the filter body.
Claim 5
Dependent Claim
21 words
The apparatus of claim 1 wherein said brackets are attached to the filter body by welds, solder, glue, bolts or rivets.
Claim 6
Dependent Claim
18 words
The apparatus of claim 1 wherein said brackets are molded in to the surface of the filter body.
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) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |