US4440555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine compartment and air cleaner
Assignee: Doosan Bobcat North America Inc
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Filing: 1982-05-20
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Granted: 1984-04-03
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Expires: 2002-05-20
Abstract
Abstract An air cleaner system for an internal combustion engine located in a vehicle engine compartment. The system includes a cubic air filter device located beside the engine in the engine compartment which is arranged to draw air from outside the vehicle, pass it through a filter cartridge in the air filter device, and through a flexible conduit connecting the air filter device with the carburetor.
Inventors
- 👤 Willard L. Chichester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:21
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/16; F02M35/162; B; B01; B01D; B01D46/00; B01D46/10; F02M35/02; F02M35/10; F02M35/10091; F02M35/10137; Y; Y10; Y10S; Y10S55/00; Y10S55/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
120 words
An engine compartment for a vehicle in combination with an air cleaner housing, said engine compartment comprising two side frame members, one of said side frame members having a horizontally disposed upper surface, said air cleaner housing having an inlet portion and an outlet portion, said inlet portion comprising a bottom wall secured to said upper surface and two end walls and including an inlet opening for admitting air into said air cleaner housing, said outlet portion comprising an air outlet opening for directing air from said housing to the engine carburetor, a flat air filter mounted in said housing at an acute angle with said bottom wall, and said filter being sealed around its periphery to said outlet portion.
Claim 2
Dependent Claim
120 words
An engine compartment for a vehicle in combination with an air cleaner housing, said engine compartment comprising two side frame members, one of said side frame members having a horizontally disposed upper surface, said air cleaner housing having an inlet portion and an outlet portion, said inlet portion comprising a bottom wall secured to said upper surface and two end walls and including an inlet opening for admitting air into said air cleaner housing, said outlet portion comprising an air outlet opening for directing air from said housing to the engine carburetor, a flat air filter mounted in said housing at an acute angle with said bottom wall, and said filter being sealed around its periphery to said outlet portion.
Claim 3
Dependent Claim
18 words
The combination as in claim 1 wherein said inlet portion and said outlet portion are rigidly secured together.
Claim 4
Dependent Claim
26 words
The combination as in claim 2 wherein said air filer is mounted in said housing by a bracket which is detachably connected to said outlet portion.
Claim 5
Dependent Claim
37 words
The combination as in claim 3 wherein said detachable connection comprises tabs on said bracket which project through openings in said outlet portion and an overcenter lever-spring device mounted on the bracket which engages the outlet portion.
Claim 6
Dependent Claim
18 words
The combination as in claim 1 wherein said inlet portion and said outlet portion are detachably secured together.
Claim 7
Dependent Claim
34 words
The combination as in claim 5 wherein said filter is sealed to said outlet portion by a resilient perimeter seal which fits with a press fit into a mating groove in the outlet portion.
Claim 8
Dependent Claim
21 words
The combination as in claim 5 wherein said inlet portion includes a side wall along with said bottom and end walls.
Claim 9
Dependent Claim
26 words
The combination as in claim 7 which comprises a vertically disposed movable door panel located above and adjacent said upper surface and adjacent said side wall.
Claim 10
Dependent Claim
35 words
The combination as in claim 8 wherein there is a space between said upper surface and the bottom edge of said door panel for admitting air from outside said vehicle into said air cleaner housing.
Claim 11
Dependent Claim
21 words
The combination as in claim 1 wherein said air outlet opening is connected by a flexible conduit with the engine carburetor.
Claim 12
Dependent Claim
44 words
The combination as in claim 1 wherein the air inert side of said filter is located above said bottom wall whereby particles which are filtered but not trapped in the filter or are dislodged from the filter fall by gravity onto said bottom wall.
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Cited
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Cited
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Cited
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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) | 1987-04-03 | 1987-10-03 | 1988-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-03 | 1991-10-03 | 1992-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-03 | 1995-10-03 | 1996-04-03 | $7700.00 | Window Closed / Lapsed |