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US3730434A Expired / Lapsed US ⏱️ 0.0 years remaining

Space volatilizing device

Assignee: Individual
•
Filing: 1972-06-21
•
Granted: 1973-05-01
•
Expires: 1992-06-21
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Abstract

Abstract This disclosure is directed to a volatilizing device for disseminating a volatile substance as a dry matter to the surrounding atmosphere in a controlled manner. The device includes a container which when closed contains a readily compressible shape of foamed urethane which has been impregnated with an aqueous emulsion of a volatile substance with the help of a surfactant in a manner whereby the volatile matter is gradually released when exposed to the atmosphere. The impregnated foam is rendered self-expandible to extend beyond the container opening when the cover is removed. The volatile matter which can be readily impregnated into the foamed urethane includes a fragrance producing volatile, or a medicinal producing volatile, or an insecticidal producing volatile or an anti-microbic producing volatile.

Inventors

  • 👤 W Engel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 07:38
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/042; A01; A01M; A01M1/00; A01M1/20; A01M1/2022; A01M1/2027; A01M1/2055

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 22 words
The invention as defined in claim 1 wherein said plastic foam is impregnated with an aqueous emulsion of a fragrance producing volatile.
Claim 2
Dependent Claim 21 words
The invention as defined in claim 1 wherein said plastic foam is impregnated with an aqueous emulsion containing a medicinal volatile.
Claim 3
Dependent Claim 21 words
The invention as defined in claim 1 wherein said plastic foam is impregnated with an aqueous emulsion containing an insecticidal volatile.
Claim 4
Dependent Claim 21 words
The inventkon as defined in claim 1 wherein said plastic foam is impregnated with an aqueous emulsion containing an anti-microbic volatile.
Claim 5
Dependent Claim 113 words
The invention as defined in claim 1 wherein said container comprises: a pair of complementary sections, which are substantially similar in size, each section having an open end and a closed end, complementary means formed adjacent the respective open ends of said complementary section whereby said open end may be detachably secured to define a closed container, one said section defining the closure for the open end of the other of said sections, and said foamed plastic being compressed between said sections in the closed position thereof whereby either end portion of said plastic foam is self-extendible beyond the open end of either of said housing sections depending upon which section is removed.
Claim 6
Dependent Claim 108 words
A vapor dispensing device comprising: a container formed of complementary sections which are substantially similar in size, each section having a closed end and an open end, complementary fastening means formed adjacent the open end of the respective containers whereby the open ends of the respective sections can be detachably mated to define a closed container, and a compressible wick disposed within said container section in the closed position thereof, and said wick being self-expansible when one of said sections is detached from the other, said wick beinG impregnated with a volatile matter which is gradually released to the surrounding atmosphere when one of the sections is removed.

References Cited (Backward Citations)

US2538989A Cited
US2537357A Cited
US2766067A Cited
US3129888A Cited
US3257077A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-04-30 1976-10-30 1977-05-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-30 1980-10-30 1981-05-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-30 1984-10-30 1985-05-01 $7700.00 Window Closed / Lapsed

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