US4364829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil filter with turn attachment
Assignee: Individual
•
Filing: 1981-07-01
•
Granted: 1982-12-21
•
Expires: 2001-07-01
Abstract
Abstract An oil filter suitably formed to provide integrally therewith a turning attachment to facilitate the interchanging of oil filters on engines and the like which include an oil filter canister. In the preferred form the filter body has substantially cylindrical configuration, upon which an interlocking instrument is disposed on an outer surface thereof. Various forms of the invention provide an interengaging implement to coact with the interlocking instrument selectively so that the oil filter canister can be rotated in either direction along its longitudinal axis by means of lever bars which in one form are affixed to the interengaging implement and pivoted thereto so that when not in use, the lever bars can be folded to reside substantially parallel to the outer annular walls of the canister.
Inventors
- 👤 Donald A. Atkins
- 👤 Marilyn M. Atkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:18
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D2201/00; B01D2201/24; Y; Y10; Y10S; Y10S210/00; Y10S210/17
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A device for facilitating changing of oil filters on engines or the like comprising in combination: an oil filter canister of cylindrical configuration having an outer annular surface with at least one interlocking means fixed thereon, an interengaging means operatively associated with said interlocking means including at least one radially extending lever bar and permanently carried on said canister annular surface whereby when said interengaging means coacts with said interlocking means, said oil filter canister can be rotated about a longitudinal axis thereof by said lever bar.
Claim 2
Independent Claim
87 words
A device for facilitating changing of oil filters on engines or the like comprising in combination: an oil filter canister of cylindrical configuration having an outer annular surface with at least one interlocking means fixed thereon, an interengaging means operatively associated with said interlocking means including at least one radially extending lever bar and permanently carried on said canister annular surface whereby when said interengaging means coacts with said interlocking means, said oil filter canister can be rotated about a longitudinal axis thereof by said lever bar.
Claim 3
Dependent Claim
23 words
The device of claim 1 wherein said interlocking means comprises a plurality of keys extending outwardly from an annular surface of said canister.
Claim 4
Dependent Claim
20 words
The device of claim 2 wherein said keys are supported on said canister through a band fashioned on said canister.
Claim 5
Dependent Claim
20 words
The device of claim 3 wherein said interengaging means comprises a sleeve formed with key ways to admit said keys.
Claim 6
Dependent Claim
21 words
The device of claim 3 wherein said interengaging means comprises a sleeve formed with teeth to slidably coact with said keys.
Claim 7
Dependent Claim
21 words
The device of claim 3 wherein said band includes a disc shaped end wall to overlie an end of said canister.
Claim 8
Dependent Claim
32 words
The device of claim 3 wherein said lever bar is formed of two ears diametrically opposed about said canister, including hinge means to fold said ears against said canister for compact storage.
Claim 9
Dependent Claim
16 words
The device of claim 3 wherein two said lever bars extend diametrically outwardly from said canister.
Claim 10
Dependent Claim
37 words
The device of claim 1 wherein said interlocking means includes a band fixed on an end portion said canister annular surface and said interengaging means includes a pair of diametrically opposed said lever hinged to said band.
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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) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |