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US4422190A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety toilet seat

Assignee: LIN HSIEN-CHIEN
•
Filing: 1982-06-01
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Granted: 1983-12-27
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Expires: 2002-06-01
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Abstract

Abstract A safety toilet seat comprising a cassette jacket type seat, a water transporting system and a controlled heating system whereby the cassette jacket-type seat is made as a jacket, the interior of which is filled with water which is kept warm by the controlled heating system. A spray nozzle is provided at the front and rear of the cassette jacket-type seat and in communication with the interior thereof. The warm water in the seat is sprayed via the nozzles to thereby wash the anus and/or genitals of user seated thereon. Conventionally heated toilet seats when used during the cold winter season are usually heated by means of an electric heating coil encased within the toilet seat. Additionally, if the toilet unit is equipped with a genital and/or anus wash washing unit, a second electric heating coil is necessary. Dual heating coils of this nature tent to waste energy, increase production cost and promote maintenance problems with respect to the toilet unit. In conventional toilet seats having washing mean incorporated therein, the water stored between the nozzle and the heating coil is cold and when sprayed upon the appropriate body parts i.e. the vagina, anus or both, the coldness of the water provides a discomforting feeling to the user. Moreover, in the interest of safety, the use of electric heating coils in a moisture existing bath or toilet room is discouraged since the potential for shock hazard is always present since the human body could very easily come in contact with current leaking from the heating coil should the heating coil malfunction.

Inventors

  • 👤 Chuan-Chih Huang

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-10 01:45
CPC Classifications
A; A47; A47K; A47K13/00; A47K13/24; A47K13/30; E; E03; E03D; E03D9/00; E03D9/08; Y; Y10; Y10S; Y10S4/00; Y10S4/06

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 133 words
A safety toilet seat comprising: a cassette jacket-type seat which is composed of a toilet seat cover, a top plate, a side plate and a bottom plate, said top plate, and said side plate and said bottom plate being fixed to form an integrated closed water jacket to correspond to the top edge of a toilet bowl; a water transporting system connected to a source of water under pressure and the inlet of the associated water closet tank, conduit means intermediate said water transporting system and said jacket, whereby water is diverted from said water transporting system to said jacket, and an electric heating control system provided to heat the water within said jacket to provide heated water for washing the genital area of a user and a heated seat surface for sitting.
Claim 2
Dependent Claim 133 words
A safety toilet seat comprising: a cassette jacket-type seat which is composed of a toilet seat cover, a top plate, a side plate and a bottom plate, said top plate, and said side plate and said bottom plate being fixed to form an integrated closed water jacket to correspond to the top edge of a toilet bowl; a water transporting system connected to a source of water under pressure and the inlet of the associated water closet tank, conduit means intermediate said water transporting system and said jacket, whereby water is diverted from said water transporting system to said jacket, and an electric heating control system provided to heat the water within said jacket to provide heated water for washing the genital area of a user and a heated seat surface for sitting.
Claim 3
Dependent Claim 99 words
A toilet seat according to claim 1, wherein, said water transporting system comprises an entrance pipe connected with a check valve to lead water into said jacket, a water conduit having an inlet hopper, a valve having a handle attached thereto and extending outside said jacket, and being terminated with a spray nozzle extended outside said jacket at a rear position thereof and another water conduit having an inlet hopper, a second valve having a handle attached thereto and extending outside said jacket, and being terminated with a spray nozzle extending outside said jacket at a front position thereof.
Claim 4
Dependent Claim 72 words
A toilet seat according to claim 1, wherein, said electric heating control system comprises a power source connector, a circuit breaker to automatically trip the circuit in response to the presence of leaking current, a transformer for reducing input voltage to a lower safe voltage, a heating coil for heating water in said jacket and a thermostat to control said heating coil and thereby maintain a constant water temperature in said jacket.
Claim 5
Dependent Claim 32 words
A toilet seat according to claim 1, wherein, said electric heating control system is made as a cassette type located in said jacket put into an adapter near the power source connector.
Claim 6
Dependent Claim 31 words
A toilet seat according to claim 1, wherein said bottom plate of said jacket is made as an extension of a conventional toilet seat and engages the toilet bowl located thereunder.
Claim 7
Dependent Claim 34 words
A toilet seat according to claim 4, wherein, said circuit breaker and said transformer are in the form of an adapter and located outside said jacket in close proximity to the power source connector.

References Cited (Backward Citations)

US802106A Cited
US929079A Cited
US1839156A Cited
US1835497A Cited
US2600619A Cited
US2875450A Cited
US3015826A Cited
US3154793A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-12-26 1987-06-27 1987-12-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-12-26 1991-06-27 1991-12-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-12-26 1995-06-27 1995-12-27 $7700.00 Window Closed / Lapsed

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