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US3824633A Expired / Lapsed US ⏱️ 0.0 years remaining

Dispenser assembly and method

Assignee: VENUS LABOR Inc
•
Filing: 1972-10-02
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Granted: 1974-07-23
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Expires: 1992-10-02
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Abstract

Abstract A disposable dispenser for fluid-soluble chemicals that must be slowly released at prescribed times, and a method of manufacture of the chemical and the dispenser in unitary form. The novel chemical composition has a relatively high melting point which permits it to be cast into a substantially imperforate protective cup in a fluid condition, and thereafter allowed to set, thereby becoming unitary with the dispenser. In one manufacture embodiment, the chemical solidifies around appropriate attaching means in the cup in a ready-for-use position. One embodiment of the article is a dispenser for antiseptic and/or deodorizing chemicals for a urinal. The chemical is protected from direct action of urine by a substantially imperforate, inverted cup in which the chemical is located. A perforated flange serves to support the dispenser cup in the desired location within the urinal while also serving to allow effective drainage of the urine. The fluid soluble chemical is released in desired amounts only at the effective time of flushing by the turbulence of the flush water. The chemical-water solution then uniformly washes and deodorizes the urine receptable to provide protection from odor, bacteria and disease. The chemical is not again released from the dispenser until flushing occurs at a later time.

Inventors

  • 👤 Vlahakis E Van

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 22:47
CPC Classifications
E; E03; E03D; E03D13/00; E03D13/005

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 15 words
The dispenser assembly of claim 1 wherein the substantially imperforate cup is a transparent material.
Claim 2
Dependent Claim 21 words
The dispenser assembly of claim 1 wherein the perforated flange and the substantially imperforate cup are molded of a transparent polyolefin.
Claim 3
Dependent Claim 25 words
The dispenser assembly of claim 1 wherein the substantially imperforate cup includes means for holding said fluid-soluble chemical in a ready-for-use position within the cup.
Claim 4
Dependent Claim 29 words
The dispenser assembly of claim 1 wherein the dispenser is adapted for use in a urinal to provide for dissolution of a fluid-soluble chemical only at times of flushing.
Claim 5
Dependent Claim 14 words
The dispenser assembly of claim 5 wherein said fluid-soluble chemical includes a washing agent.
Claim 6
Dependent Claim 15 words
The dispenser assembly of claim 6 wherein said fluid-soluble chemical includes germicidal and deodorizing agents.
Claim 7
Dependent Claim 59 words
The dispenser assembly of claim 5 wherein said fluid-soluble chemical comprises: a. a non-ionic surfactant containing a sufficient amount of ethylene oxide to provide a melting point over 100*F.; b. an acid in an amount sufficient to neutralize urine bases and form soluble, non-corrosive urine salts; c. an essential oil; and d. a germicidal to reduce the bacterial count.
Claim 8
Dependent Claim 15 words
The dispenser assembly of claim 8 wherein said acid is selected from phosphoric and citric.
Claim 9
Dependent Claim 30 words
The dispenser assembly of claim 8 which includes a colorant thereby indicating by color-coding the chemical contained in the dispenser assembly, and visably indicating when the chemical has been exhausted.

References Cited (Backward Citations)

US2201530A Cited
US3538520A Cited
US3597772A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-07-22 1978-01-21 1978-07-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-07-22 1982-01-21 1982-07-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-07-22 1986-01-21 1986-07-23 $7700.00 Window Closed / Lapsed

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