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1. WO1996006233 - TOILET WITH MAGNETIC CHECK VALVE

Publication Number WO/1996/006233
Publication Date 29.02.1996
International Application No. PCT/US1995/010431
International Filing Date 16.08.1995
Chapter 2 Demand Filed 19.01.1996
IPC
E03D 5/01 2006.01
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
5Special constructions of flushing devices
01using flushing pumps
F16K 15/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
F16K 31/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31Operating means; Releasing devices
02electric; magnetic
06using a magnet
08using a permanent magnet
CPC
E03D 5/01
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
5Special constructions of flushing devices
01using flushing pumps
F16K 15/026
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
15Check valves
02with guided rigid valve members
025the valve being loaded by a helicoidal spring
026the valve member being a movable body around which the medium flows when the valve is open
F16K 31/084
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
31Actuating devices;; Operating means; Releasing devices
02electric
06using a magnet ; , e.g. diaphragm valves, cutting off by means of a liquid
08using a permanent magnet
084the magnet being used only as a holding element to maintain the valve in a specific position, e.g. check valves
Y10T 137/7905
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
137Fluid handling
7722Line condition change responsive valves
7837Direct response valves [i.e., check valve type]
7904Reciprocating valves
7905Plural biasing means
Applicants
  • THETFORD CORPORATION [US/US]; 7101 Jackson Road Ann Arbor, MI 48103, US
Inventors
  • CHLEBEK, Kevin, B.; US
  • MILLER, James, K.; US
Agents
  • STEPHENSON, James, E. ; Harness, Dickey & Pierce, plc P.O. Box 828 Bloomfield Hills, MI 48303, US
Priority Data
08/294,31123.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TOILET WITH MAGNETIC CHECK VALVE
(FR) TOILETTES A CLAPET DE NON RETOUR MAGNETIQUE
Abstract
(EN)
An RV toilet (10) having a seat section (12) that includes a bowl (16) with a bottom discharge opening. The toilet (10) also includes a source of flush water (22) for rinsing the bowl and removing waste through the discharge opening into a waste storage tank (14). A pump (32) provides the flush water through a nozzle (52) which directs the flush water into the bowl. A check valve (56) is associated with discharge nozzle (52) to prevent flush water from inadvertently leaking into the bowl (16). The check valve (56) is capable of being used with either a manually actuated pump or a power assisted pump and reduces the force required by the pump to maintain the valve open than to initially open it.
(FR)
Toilettes (10) pour véhicule de loisirs présentant un siège (12) avec sa cuvette (16) dotée d'un orifice de décharge inférieur et comportant une source d'eau de chasse (22) pour rincer la cuvette et faire passer les matières par le susdit orifice dans un caisson (14) les recevant. Une pompe (32) fournit l'eau de chasse qu'une buse (52) dirige dans la cuvette. Un clapet de non retour (56), associé à la buse (52) empêche les fuites inopinées d'eau de chasse dans la cuvette. Le clapet (56) qui peut s'utiliser avec une pompe à main ou avec une pompe électrique réduit la force à fournir par la pompe pour le maintenir ouvert par rapport à celle initialement requise pour l'ouvrir.
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