Patent US5256476A successfully refreshed from Google Patents.
US5256476A
Expired / Lapsed
US
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Fan blade comprising adsorbent particles, fine plastic particles and reinforcing fibers
Assignee: Kuraray Chemical Co Ltd
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Filing: 1992-11-16
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Granted: 1993-10-26
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Expires: 2012-11-16
Abstract
Abstract Provided are molded adsorbents comprising a mixture of adsorbent particles, fine plastic particles and a reinforcing fiber, the mixture having been molded utilizing the fine plastic particles and, as required, the reinforcing fiber as binder. They have features, as compared with conventional molded adsorbents utilizing a latex binder, having an adsorptive capacity having been decreased to a smaller extent from those of the raw material adsorbent particles used and higher adsorption rate owing to well-maintained porosity. They have good mechanical properties at normal temperature and can hence be processed by cutting or like machinings into various machine parts, including blades of fans having both adsorptive capacity and high mechanical properties. Also provided are a process for producing the above molded adsorbents and their use as deodorizing units.
Inventors
- 👤 Eiji Tanaka
- 👤 Ken Tanii
- 👤 Yohichi Fujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:47
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/28; B01J20/28014; B01J20/28028; B01J20/28002; B01J20/28004; B01J20/2803; B01J20/28033; B01J20/28042; B01J20/28045; Y; Y10; Y10S; Y10S95/00; Y10S95/90; Y10S95/901; Y10T; Y10T442/00; Y10T442/10; Y10T442/20; Y10T442/2041; Y10T442/2049; Y10T442/209; Y10T442/2861; Y10T442/2877; Y10T442/2893; Y10T442/2902; Y10T442/291; Y10T442/2918; Y10T442/2926; Y10T442/2934; Y10T442/2943; Y10T442/2992
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
132 words
A blade for propeller fans or sirocco fans, of molded adsorbent comprising a mixture of (1) adsorbent particles wherein said adsorbent particles are of at least one member selected from the group consisting of activated carbon, zeolite and silica; (2) fine plastic particles wherein said fine plastic particles are of at least one member selected from the group consisting of polyethylene, polypropylene, and ethylene-vinyl acetate copolymer, a major portion of said fine plastic particles having a particle diameter of 0.5 to 100 μm, and of a blended ratio of 1 to 50 parts by weight based on 100 parts by weight of the adsorbent particles; and (3) a reinforcing fiber, said mixture being consolidated by said fine plastic particles and part of said reinforcing fiber being fused, to act as a binder.
Claim 2
Dependent Claim
132 words
A blade for propeller fans or sirocco fans, of molded adsorbent comprising a mixture of (1) adsorbent particles wherein said adsorbent particles are of at least one member selected from the group consisting of activated carbon, zeolite and silica; (2) fine plastic particles wherein said fine plastic particles are of at least one member selected from the group consisting of polyethylene, polypropylene, and ethylene-vinyl acetate copolymer, a major portion of said fine plastic particles having a particle diameter of 0.5 to 100 μm, and of a blended ratio of 1 to 50 parts by weight based on 100 parts by weight of the adsorbent particles; and (3) a reinforcing fiber, said mixture being consolidated by said fine plastic particles and part of said reinforcing fiber being fused, to act as a binder.
Claim 3
Dependent Claim
84 words
A blade for propeller fans or sirocco fans according to claim 1, wherein said reinforcing fiber is selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, nylon, polyvinyl alcohol, Kevlar® polyethylene, polypropylene, conjugate fibers consisting of at least two materials selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate, nylon, polyvinyl alcohol, Kevlar®, polyethylene and polypropylene, and glass fibers and has a form of short-cut individual filaments, chopped strands, endless yarns or rovings, a nonwoven, woven or knitted fabric or a net.
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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) | 1996-10-25 | 1997-04-26 | 1997-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-25 | 2001-04-26 | 2001-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-25 | 2005-04-26 | 2005-10-26 | $7700.00 | Window Closed / Lapsed |