US3745753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cleaner
Assignee: United Filtration Corp
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Filing: 1970-04-27
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Granted: 1973-07-17
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Expires: 1990-04-27
Abstract
Abstract An air cleaning device of the so-called all dry type for use in cleaning the air for internal combustion engines, air compressors and the like with a unitary type housing which is generally cylindrical in nature enclosing a generally cylindrical dry filter element with a dirty air inlet and a clean air outlet in which the housing is indented opposite the clean air inlet to prevent dirt from orbiting, the housing section is made from two halves which are of generally equal size and length and of similar shape so that they can be crimped together at their abutting edges, a unitary distortable seal is used on the filter element itself to simultaneously seal and pilot the element, a bail mechanism is used to simultaneously clamp the closure in place and also apply an axial thrust to the filter element, and the housing has reduced portions at each end to properly center the filter element.
Inventors
- 👤 W Risse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:39
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0039; B01D46/0041; B01D46/0046; B01D46/0084; B01D46/0095; B01D46/24; B01D46/2403; B01D46/2411; B01D46/42; B01D46/4227; B01D46/56; B01D46/62; B01D46/64; B01D2271/00; B01D2271/02; Y; Y10; Y10S; Y10S55/00; Y10S55/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
In an air cleaner assembly for use with an internal combustion engine or the like, a generally cylindrical housing having an inlet for dirty air, a clean air outlet adapted to be connected to the intake of an internal combustion engine, a generally cylindrical annular filter element in the housing with its interior in communication with the clean air outlet and its exterior in communication with the dirty air inlet, an axially disposed opening on one end of the housing to provide for insertion of clean filter elements and for withdrawal of dirty ones, a removable closure on the opening, and an over center bale bale mechanism on the closure constructed, upon actuation thereof, to simultaneously clamp the closure in place on the opening and to apply an axial thrust to the filter element to firmly seat it in the housing said bale mechanism is mounted on the closure and is removable therewith, the closure and bale mechanism, as a unit, being separate from the housing and filter element, but mountable on and removable from the axially disposed opening in the housing.
Claim 2
Dependent Claim
182 words
In an air cleaner assembly for use with an internal combustion engine or the like, a generally cylindrical housing having an inlet for dirty air, a clean air outlet adapted to be connected to the intake of an internal combustion engine, a generally cylindrical annular filter element in the housing with its interior in communication with the clean air outlet and its exterior in communication with the dirty air inlet, an axially disposed opening on one end of the housing to provide for insertion of clean filter elements and for withdrawal of dirty ones, a removable closure on the opening, and an over center bale bale mechanism on the closure constructed, upon actuation thereof, to simultaneously clamp the closure in place on the opening and to apply an axial thrust to the filter element to firmly seat it in the housing said bale mechanism is mounted on the closure and is removable therewith, the closure and bale mechanism, as a unit, being separate from the housing and filter element, but mountable on and removable from the axially disposed opening in the housing.
Claim 3
Dependent Claim
56 words
The structure of claim 1 further characterized in that the peripheral edge of the closure is provided with a skirt that overlies the exterior of the housing at the axial opening such that when the closure is in place on the opening, the skirt will prevent the entry of water and foreign material into the housing.
Claim 4
Dependent Claim
36 words
The structure of claim 1 further characterized by and including a bayonet joint between the closure and housing, and including a plurality of slots on one and a like number of interfitting tags on the other.
Claim 5
Dependent Claim
87 words
The structure of claim 1 further characterized in that the bale mechanism includes an outer arcuate portion of about 180* with each end thereof extending through and pivoting in openings in the closure, the ends being interconnected by an inner portion lying inside the closure and extending diametrically across it with an offset formation generally in the center thereof constructed, upon pivoting closure of the outer portion to project inwardly and engage a filter element in the housing so as to apply an axial thrust to it.
Claim 6
Dependent Claim
69 words
The structure of claim 4 further characterzed in that the offset portion on the inner part of the bale is constructed to move overcenter across the axis of the housing when the outer circumferential portion is folded in flush with the exterior of the closure so that unlocking the bale, by reverse pivoting of the outer portion, will be resisted by the overcenter position of the offset inner portion.
Claim 7
Dependent Claim
27 words
The structure of claim 3 in which the slots are in the peripheral edge of the opening in the housing and the tabs are on the closure.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |