US5792229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter and filtering apparatus
Assignee: Denso Corp
•
Filing: 1997-06-17
•
Granted: 1998-08-11
•
Expires: 2017-06-17
Abstract
Abstract A filter corrugated in wave shape along a first axis has an end filter material piece positioning at an end of the first axis and adjacent filter material piece positioning adjoining to said end filter material piece. The end filter material piece and said adjacent end filter material piece are adhered to each other by an adhesive. In another embodiment, a filter element has a cushion material disposed between the end filter material piece and the adjacent end filter material piece. A filter material has convex and concave crease portions alternately disposed along a first axis thereof and extending along a second axis thereof. The convex and concave crease portions define alternating convex and concave spaces therein. An elastic material fills at least a portion of at least one of said concave and convex spaces.
Inventors
- 👤 Yukiya Sassa
- 👤 Toshiaki Fukuta
- 👤 Kenichi Kato
- 👤 Hitoshi Ninomiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:38
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D46/523; B01D46/0001; B01D46/0002; B01D46/0005; B01D46/10; B01D46/103; B01D46/12; B60; B60H; B60H3/00; B60H3/06; B60H3/0608; B60H3/0616; F; F24; F24F; F24F13/00; F24F13/28; B01D2271/00; B01D2271/02; B01D2279/00; B01D2279/50; B60H2003/065
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
108 words
A filter comprising: a filter material corrugated in a wave plate shape along a first axis thereof, wherein said filter material has an end filter material piece positioned at an end of said first axis and an adjacent end filter material piece adjoined to said end filter material piece, said end filter material piece and said adjacent end filter material piece are adhered to each other, wherein said filter material is folded outward to said adjacent end filter material piece in such a manner that said end filter material piece and said adjacent end filter material piece form a smaller convex crease portion than adjacent filter materials form.
Claim 2
Dependent Claim
108 words
A filter comprising: a filter material corrugated in a wave plate shape along a first axis thereof, wherein said filter material has an end filter material piece positioned at an end of said first axis and an adjacent end filter material piece adjoined to said end filter material piece, said end filter material piece and said adjacent end filter material piece are adhered to each other, wherein said filter material is folded outward to said adjacent end filter material piece in such a manner that said end filter material piece and said adjacent end filter material piece form a smaller convex crease portion than adjacent filter materials form.
Claim 3
Dependent Claim
106 words
A filter comprising: a filter material corrugated in a wave plate shape along a first axis thereof, wherein said filter material has an end filter material piece positioned at an end of said first axis and an adjacent end filter material piece adjoined to said end filter material piece, said end filter material piece and said adjacent end filter material piece are adhered to each other, and wherein said end filter material piece is folded inward to said adjacent end filter material piece in such a manner that said end filter material piece curls toward said adjacent end filter material piece and an adjacent filter material.
Claim 4
Dependent Claim
106 words
A filter comprising: a filter material corrugated in a wave plate shape along a first axis thereof, wherein said filter material has an end filter material piece positioned at an end of said first axis and an adjacent end filter material piece adjoined to said end filter material piece, said end filter material piece and said adjacent end filter material piece are adhered to each other, and wherein said end filter material piece is folded inward to said adjacent end filter material piece in such a manner that said end filter material piece curls toward said adjacent end filter material piece and an adjacent filter material.
Claim 5
Dependent Claim
48 words
A filter according to claim 1, wherein said filter material has side frame bodies extending along said first axis of said filter material at both side ends of a second axis which is perpendicular each other of said filter material, said side frame bodies having a plate shape.
Claim 6
Dependent Claim
22 words
A filter according to claim 1, further comprising a hot-melt adhesive adhering said end filter material piece and said adjacent material piece.
Claim 7
Dependent Claim
19 words
A filter according to claim 1, further comprising an elastic material disposed between said adjacent end filter material pieces.
Claim 8
Dependent Claim
39 words
A filter according to claim 5, further comprising: a frame body for accommodating said filter material and having a holding space for holding said end filter material piece, said adjacent end filter material piece and said elastic material therein.
Claim 9
Dependent Claim
43 words
A filter according to claim 6, wherein said holding space is formed between a support member protruding in parallel to an inner wall of said frame body so that said support member is inserted into a convex crease portion of said filter material.
Claim 10
Dependent Claim
39 words
A filter according to claim 7, wherein a width of said holding space is smaller than a total width of said elastic member, a thickness of said end filter member piece and a thickness of said adjacent filter material.
Claim 11
Dependent Claim
24 words
A filter according to claim 5, wherein said elastic material extends from said peripheral portion away from said filter material along said second axis.
Claim 12
Dependent Claim
48 words
A filter according to claim 2, wherein said filter material has side frame bodies extending along said first axis of said filter material at both side ends of a second axis which is perpendicular each other of said filter material, said side frame bodies having a plate shape.
Claim 13
Dependent Claim
22 words
A filter according to claim 2, further comprising a hot-melt adhesive adhering said end filter material piece and said adjacent material piece.
Claim 14
Dependent Claim
19 words
A filter according to claim 2, further comprising: an elastic material disposed between said adjacent end filter material pieces.
Claim 15
Dependent Claim
39 words
A filter according to claim 12, further comprising: a frame body for accommodating said filter material and having a holding space for holding said end filter material piece, said adjacent end filter material piece and said elastic material therein.
Claim 16
Dependent Claim
43 words
A filter according to claim 13, wherein said holding space is formed between a support member protruding in parallel to an inner wall of said frame body so that said support member is inserted into a convex crease portion of said filter material.
Claim 17
Dependent Claim
39 words
A filter according to claim 14, wherein a width of said holding space is smaller than a total width of said elastic member, a thickness of said end filter member piece and a thickness of said adjacent filter material.
Claim 18
Dependent Claim
24 words
A filter according to claim 12, wherein said elastic material extends from said peripheral portion away from said filter material along said second axis.
References Cited (Backward Citations)
US2968361A
Cited
US3138443A
Cited
US3246457A
Cited
US3243943A
Cited
US3397518A
Cited
US3692184A
Cited
US3871851A
Cited
DE2359729A1
Cited
US4236901A
Cited
US4187091A
Cited
US4512891A
Cited
US4617122A
Cited
JPS6382416A
Cited
US4976677A
Cited
JPS6465628A
Cited
JPH01317519A
Cited
US5071555A
Cited
US5167740A
Cited
JPH05103936A
Cited
US5501794A
Cited
WO1994001200A1
Cited
JPH06174619A
Cited
JPH06174618A
Cited
US5512075A
Cited
DE4323523A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-10 | 2002-02-09 | 2002-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-10 | 2006-02-09 | 2006-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-10 | 2010-02-09 | 2010-08-11 | $7700.00 | Window Closed / Lapsed |