Patent US4053243A successfully refreshed from Google Patents.
US4053243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid applicator
Assignee: Individual
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Filing: 1975-12-01
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Granted: 1977-10-11
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Expires: 1995-12-01
Abstract
Abstract This invention relates to a liquid applicator for applying a cleaning liquid. The applicator comprises a bottle, a container within the neck of the bottle containing a pad of polyurethane foam and a support structure which is attached to the body. A covering of woven synthetic material is welded to the support structure and is substantially unsupported over its main portion. The cleaning liquid passes through the foam material which causes it to froth and the frothed liquid passes in turn through the woven synthetic material to be applied easily to the material to be cleaned.
Inventors
- 👤 David Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:30
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/42; B43; B43M; B43M11/00; B43M11/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
161 words
A liquid applicator comprising: a. a liquid reservoir, b. flow restrictor means having an inlet communicating with the reservoir and an outlet, c. said flow restrictor means being effective to receive liquid from the liquid reservoir through said inlet, produce foam and direct said foam through said outlet, d. a foam flow passage means extending outwardly from the flow restrictor means and having an open outer end, and e. wear resisting cover means disposed over the outer end of the foam flow passage means and being porous to the flow of foam therethrough, f. said foam flow passage means comprising a hollow elongated outlet support member extending between the flow resistor means and the cover means to form a foam chamber in which the passage of liquid foam is guided from the outlet of the flow restrictor means to the cover means, g. said flow restrictor means including a restrictor material effective to permit liquid in foam form to pass therethrough.
Claim 2
Dependent Claim
161 words
A liquid applicator comprising: a. a liquid reservoir, b. flow restrictor means having an inlet communicating with the reservoir and an outlet, c. said flow restrictor means being effective to receive liquid from the liquid reservoir through said inlet, produce foam and direct said foam through said outlet, d. a foam flow passage means extending outwardly from the flow restrictor means and having an open outer end, and e. wear resisting cover means disposed over the outer end of the foam flow passage means and being porous to the flow of foam therethrough, f. said foam flow passage means comprising a hollow elongated outlet support member extending between the flow resistor means and the cover means to form a foam chamber in which the passage of liquid foam is guided from the outlet of the flow restrictor means to the cover means, g. said flow restrictor means including a restrictor material effective to permit liquid in foam form to pass therethrough.
Claim 3
Dependent Claim
14 words
An applicator as defined in claim 1 wherein the restrictor material comprises foamed material.
Claim 4
Dependent Claim
14 words
An applicator as defined in claim 1 wherein said resistor material comprises cotton wool.
Claim 5
Dependent Claim
26 words
An applicator as defined in claim 1 wherein the cover means comprises a woven synthetic material welded onto an outside surface of the outlet support member.
Claim 6
Dependent Claim
24 words
An applicator as defined in claim 1 wherein the liquid reservoir contains an ionic detergent which foams when passed through the flow restrictor means.
Claim 7
Dependent Claim
21 words
An applicator as defined in claim 1 wherein the reservoir comprises a flexible material so that it may be squeezed manually.
Claim 8
Dependent Claim
38 words
An applicator as defined in claim 1 wherein the cover means comprises a cover member that overlies the outer end of the foam flow passage means and is substantially unsupported over a substantial portion of said cover member.
Claim 9
Dependent Claim
23 words
An applicator as defined in claim 1 wherein the flow restrictor means has an elongated restricted outlet part extending into said foam chamber.
Claim 10
Dependent Claim
130 words
A closure combination for a bottle to convert the bottle into an applicator, said closure device comprising: a. a support structure having an outlet face at its outer end that is substantially open and including means for attachment to a bottle, b. cover means carried by the support structure and providing an applicator surface, c. said cover means lying over and being substantially unsupported by the outlet face of the support structure, and d. a flow restrictor means laterally spaced from the outer end of the support structure to form an elongated foam flow passage chamber between the flow restrictor means and said outer end, e. said flow restrictor means including a restrictor material effective to permit liquid in foam form to pass therethrough into said foam flow passage chamber.
Claim 11
Dependent Claim
130 words
A closure combination for a bottle to convert the bottle into an applicator, said closure device comprising: a. a support structure having an outlet face at its outer end that is substantially open and including means for attachment to a bottle, b. cover means carried by the support structure and providing an applicator surface, c. said cover means lying over and being substantially unsupported by the outlet face of the support structure, and d. a flow restrictor means laterally spaced from the outer end of the support structure to form an elongated foam flow passage chamber between the flow restrictor means and said outer end, e. said flow restrictor means including a restrictor material effective to permit liquid in foam form to pass therethrough into said foam flow passage chamber.
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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) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |