Patent US5529593A successfully refreshed from Google Patents.
US5529593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter screen assembly for use with an air intake unit
Assignee: Poplar Tree Holdings Inc
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Filing: 1994-10-07
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Granted: 1996-06-25
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Expires: 2014-10-07
Abstract
Abstract A filter screen assembly for use with an air intake unit, the air intake unit having a top, a bottom and at least one side wall. A flexible screen is provided as a roll wound onto a spindle. The spindle is held within a vertically extending container secured to the side of the unit. The container has a bottom and side walls which define an open interior for receiving the spindle and the spindle is rotatably supported at opposite ends within the container. The flexible screen is unwound from the spindle and is attached to the sides of the unit at predetermined locations around the periphery of the unit. The spindle may further be dismounted from the container and the flexible screen manually rewound onto the spindle.
Inventors
- 👤 Jesse K. Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:59
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/10; F24F8/108; B; B01; B01D; B01D46/00; B01D46/18; F24F1/00; F24F1/0007; F24F1/0071; F24F1/02; F24F1/0328; F24F1/035; B01D2275/00; B01D2275/20; B01D2275/203
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
108 words
A filter screen assembly for use with an air intake unit, the air intake unit having a top, a bottom and at least one side wall, said assembly comprising: a flexible screen; means for advancing said flexible screen across the side wall of the unit; means for securing said flexible screen at desired locations along the side wall of the unit, said means for securing comprising a plurality of ringlets positioned at spaced intervals along an edge of said flexible screen, a corresponding plurality of hooks extending from along the side wall and engaging through said ringlets; and means for storing said flexible screen attached to the unit.
Claim 2
Dependent Claim
108 words
A filter screen assembly for use with an air intake unit, the air intake unit having a top, a bottom and at least one side wall, said assembly comprising: a flexible screen; means for advancing said flexible screen across the side wall of the unit; means for securing said flexible screen at desired locations along the side wall of the unit, said means for securing comprising a plurality of ringlets positioned at spaced intervals along an edge of said flexible screen, a corresponding plurality of hooks extending from along the side wall and engaging through said ringlets; and means for storing said flexible screen attached to the unit.
Claim 3
Dependent Claim
75 words
The filter screen assembly as described in claim 1, said means for storing comprising a vertically extending container attached to the side wall of the unit and extending substantially a length of the side wall which is equal to a height of the unit, said container having a bottom and a pair of side walls defining an open interior for receiving said screen and having a lid hingedly connected to one of said side walls.
Claim 4
Dependent Claim
45 words
The filter screen assembly as described in claim 2, said means for advancing comprising a spindle for supporting said flexible screen in a wound roll, said spindle having a first end and a second end which are rotatably attached to opposing ends of said container.
Claim 5
Dependent Claim
43 words
The filter screen assembly as described in claim 3, further comprising a crank communicating with an end of said spindle and extending from said container, said crank being rotated in one of either two directions to advance or to retract said flexible screen.
Claim 6
Dependent Claim
23 words
The filter screen assembly as described in claim 3, said spindle being removable from said container and rotated to rewind said flexible screen.
Claim 7
Dependent Claim
18 words
The filter screen assembly as described in claim 1, said flexible screen is constructed of a polyester material.
Claim 8
Dependent Claim
19 words
The filter screen assembly as described in claim 1, said flexible screen is constructed of a wire mesh material.
Claim 9
Dependent Claim
36 words
The filter screen assembly as described in claim 1, the air intake unit is quadrilateral in shape and said flexible screen attaches to a first side, a second side, a third side and a fourth side.
Claim 10
Dependent Claim
31 words
The filter screen assembly as described in claim 1, the air intake unit is round in shape and said flexible screen attaches to the unit around a circumference of the unit.
Claim 11
Dependent Claim
120 words
A filter screen assembly for use with an air intake unit, the air intake unit having a top, a bottom and at least one side wall, said assembly comprising: a flexible screen; means for advancing said flexible screen across the side wall of the unit; means for securing said flexible screen at desired locations along the side wall of the unit, said means for securing comprising a first plurality of interengaging fastener portions positioned at spaced intervals along said flexible screen, a second plurality of interengaging fastener portions extending from the at least one side wall of the container and meshingly engaging with the first plurality of fastener portions; and means for storing said flexible screen attached to the unit.
Claim 12
Dependent Claim
120 words
A filter screen assembly for use with an air intake unit, the air intake unit having a top, a bottom and at least one side wall, said assembly comprising: a flexible screen; means for advancing said flexible screen across the side wall of the unit; means for securing said flexible screen at desired locations along the side wall of the unit, said means for securing comprising a first plurality of interengaging fastener portions positioned at spaced intervals along said flexible screen, a second plurality of interengaging fastener portions extending from the at least one side wall of the container and meshingly engaging with the first plurality of fastener portions; and means for storing said flexible screen attached to the unit.
References Cited (Backward Citations)
US3190059A
Cited
US3348822A
Cited
US3470680A
Cited
US3596442A
Cited
US3710552A
Cited
DE2131259A1
Cited
US3759018A
Cited
US4421862A
Cited
US4601737A
Cited
US4743281A
Cited
SU1487952A1
Cited
US4889542A
Cited
US5156662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-25 | 1999-12-25 | 2000-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-25 | 2003-12-25 | 2004-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-25 | 2007-12-25 | 2008-06-25 | $7700.00 | Window Closed / Lapsed |