Patent US4257787A successfully refreshed from Google Patents.
US4257787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary dispensing device for air treatment
Assignee: Individual
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Filing: 1979-10-19
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Granted: 1981-03-24
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Expires: 1999-10-19
Abstract
Abstract A dispensing device for mounting cakes of air treatment material in air distribution systems has bracket means for securement to an air filter panel and open cups for receiving the cakes secured by coupling means to the bracket means. The bracket comprises mutually slidable elements having integral hooks to engage opposite edge portions of a filter panel, these elements having their overlapping portions secured together by friction catch means. The coupling means preferably includes releasable snap-action fasteners, typically mounted on the cups. The cups are provided with openings to permit air passage about the cakes.
Inventors
- 👤 Christine S. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:55
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/66; B01D46/68; B01D2265/00; B01D2265/02; B01D2265/028; B01D2265/04; B01D2265/05
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
52 words
A dispensing device for mounting cakes of air treatment materials on filter panels in air distribution systems, comprising: bracket means adapted to be secured to an air filter panel, a plurality of open cups for receiving said cakes of treatment material, and coupling means for securing the cups to the bracket means.
Claim 2
Dependent Claim
52 words
A dispensing device for mounting cakes of air treatment materials on filter panels in air distribution systems, comprising: bracket means adapted to be secured to an air filter panel, a plurality of open cups for receiving said cakes of treatment material, and coupling means for securing the cups to the bracket means.
Claim 3
Dependent Claim
20 words
A dispensing device according to claim 1, wherein: said cups have openings defined therein to permit passage of air therethrough.
Claim 4
Dependent Claim
38 words
A dispensing device according to claim 1 or claim 2, wherein: the bracket means comprises elongated mutually slidable elements being formed with integral hooks at their outer end portion for engaging opposite edge portions of said filter panel.
Claim 5
Dependent Claim
24 words
A dispensing device according to claim 3, wherein: said bracket means further comprises friction catch menas for securing overlapping portions of said elongated elements.
Claim 6
Dependent Claim
13 words
A dispensing device according to claim 1, wherein: said coupling means include fasteners.
Claim 7
Dependent Claim
14 words
A dispensing device according to claim 5, wherein: said fasteners are releasable snap-action fasteners.
Claim 8
Dependent Claim
19 words
A dispensing device according to claim 5, wherein: said fasteners are mounted on the cups in mutually orthogonal relation.
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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |