US4507199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil filter unit and sealing device
Assignee: Individual
•
Filing: 1983-04-27
•
Granted: 1985-03-26
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Expires: 2003-04-27
Abstract
Abstract An oil filter sealing device adapted to seal and protect the oil circulation apertures and reinforcing plate of an oil filter unit, said sealing device comprising, as a unitary structure: (a) a flat, circular plate having an upper surface and a lower surface; and (b) a frictional attachment means centrally disposed on the lower surface of said flat, circular plate.
Inventors
- 👤 Robert W. Carlisle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:33
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; Y; Y10; Y10S; Y10S210/00; Y10S210/17
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
182 words
A throw away protective cap in combination with a screw-on type oil filter unit including a generally cylindrical housing having first and second ends and wherein said first end is characterized by means defining an oil passage, said oil passage including threaded means therein for threadably receiving the throw away protective cap, said cap comprising: a flat plate like member having an upper surface and a lower surface; said upper surface characterized by means for facilitating the application of force thereon for inducing manual rotation of said cap; said lower surface of said cap constituting a seal for abutting said oil filter unit and for sealingly engaging said filter unit to preclude the escape of oil contained therein; attachment means characterizing the lower surface of said plate and axially aligned with the aforesaid threads of said oil filter unit; and the threads of said oil filter unit and the said attachment means of said cap being appropriately dimensioned to cause seating of said cap on said oil filter unit to seal same while securely locking said cap to the filter unit itself.
Claim 2
Dependent Claim
182 words
A throw away protective cap in combination with a screw-on type oil filter unit including a generally cylindrical housing having first and second ends and wherein said first end is characterized by means defining an oil passage, said oil passage including threaded means therein for threadably receiving the throw away protective cap, said cap comprising: a flat plate like member having an upper surface and a lower surface; said upper surface characterized by means for facilitating the application of force thereon for inducing manual rotation of said cap; said lower surface of said cap constituting a seal for abutting said oil filter unit and for sealingly engaging said filter unit to preclude the escape of oil contained therein; attachment means characterizing the lower surface of said plate and axially aligned with the aforesaid threads of said oil filter unit; and the threads of said oil filter unit and the said attachment means of said cap being appropriately dimensioned to cause seating of said cap on said oil filter unit to seal same while securely locking said cap to the filter unit itself.
Claim 3
Dependent Claim
33 words
The combination of claim 1, wherein said oil filter unit is characterized by raised sealing means disposed exteriorly on said first end thereof for abuttingly receiving the sealing surface of said flat plate.
Claim 4
Dependent Claim
29 words
The combination of claim 1, wherein said means for facilitating force thereon for inducing manual rotation of said cap is characterized by a plurality of raised cross ridge means.
Claim 5
Dependent Claim
36 words
The combination of claim 1 wherein a gasket means is affixed to the surface of said oil filter unit on which the throw away protective cap is adapted to rest so as to preclude leakage therefrom.
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) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |