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US3881503A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for washing and decontaminating articles

Assignee: Ethicon Inc
•
Filing: 1973-07-12
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Granted: 1975-05-06
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Expires: 1993-07-12
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Abstract

Abstract An apparatus for washing and decontaminating anesthetic and other hospital equipment comprises a bowl having elements for supporting the equipment without agitation during operation of the apparatus. The apparatus is equipped with a tank for storing decontaminating fluid for a predetermined period of time and conduits for transferring the fluid between the tank and the bowl during the decontamination cycles of the apparatus.

Inventors

  • 👤 John Francis Fox
  • 👤 Bernard Frank Harber

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 19:51
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/18

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 238 words
In an apparatus for washing and decontaminating articles including a bowl having a motor driven impeller located therein and a top cover for sealing said bowl, a motor driven pump for supplying pressurized fluid to a support means having pipes connected thereto located within said bowl, each of said pipes having at least one outlet orifice and being adapted to have some articles connected thereto in a manner such that in use fluid from said pipes passes through the interior of the articles and into said bowl, said bowl having passage means connecting the interior of the bowl with the inlet of said pump and having a valve controlled drain, a heating coil located within said bowl, a storage tank for a decontaminating fluid, sAid fluid having a fixed effective life, means for bringing the decontaminating fluid into effective contact with said articles located within said bowl, means for returning the decontaminating fluid from said bowl to said storage tank at the end of a decontaminating cycle, and electrical control means for affecting the operation of said motor driven impeller, said motor driven pump, said bowl drain valve, said decontaminating fluid bringing means and said decontaminating fluid returning means; the improvement comprising: means associated with said bowl for promoting self-draining of bowl surfaces when a fluid is drained from the bowl; and means associated with said electrical control means for regulating the operational life of said decontaminating fluid.
Claim 2
Dependent Claim 238 words
In an apparatus for washing and decontaminating articles including a bowl having a motor driven impeller located therein and a top cover for sealing said bowl, a motor driven pump for supplying pressurized fluid to a support means having pipes connected thereto located within said bowl, each of said pipes having at least one outlet orifice and being adapted to have some articles connected thereto in a manner such that in use fluid from said pipes passes through the interior of the articles and into said bowl, said bowl having passage means connecting the interior of the bowl with the inlet of said pump and having a valve controlled drain, a heating coil located within said bowl, a storage tank for a decontaminating fluid, sAid fluid having a fixed effective life, means for bringing the decontaminating fluid into effective contact with said articles located within said bowl, means for returning the decontaminating fluid from said bowl to said storage tank at the end of a decontaminating cycle, and electrical control means for affecting the operation of said motor driven impeller, said motor driven pump, said bowl drain valve, said decontaminating fluid bringing means and said decontaminating fluid returning means; the improvement comprising: means associated with said bowl for promoting self-draining of bowl surfaces when a fluid is drained from the bowl; and means associated with said electrical control means for regulating the operational life of said decontaminating fluid.
Claim 3
Dependent Claim 16 words
The apparatus of claim 1 wherein all of the interior surfaces of said bowl are sloping.
Claim 4
Dependent Claim 26 words
The apparatus of claim 2 wherein said draining promoting means includes a coating of inert water-repellent material and wherein said regulating means includes a 14-day timer.
Claim 5
Dependent Claim 19 words
The apparatus of claim 3 also including means for regulating within close tolerance the upper temperature within the bowl.
Claim 6
Dependent Claim 76 words
The apparatus of claim 4 wherein said temperature regulating means includes: a close limit thermostat located within said bowl, said thermostat being connected to said electrical control means to switch off said heater coil and operate said drain valve; and an electrical solenoid, said solenoid being mounted to said bowl and being positioned to raise said bowl lid about 2 inches when activated, said solenoid being electrically connected to said thermostat through said electrical control means.

References Cited (Backward Citations)

US3739791A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-05 1978-11-04 1979-05-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-05 1982-11-04 1983-05-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-05 1986-11-04 1987-05-06 $7700.00 Window Closed / Lapsed

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