Vacuum flush water closet
First Claim
1. In a vacuum flush water closet, the combination, comprising:
- a. a sewage discharge valve that is operated by vacuum;
b. means for producing a vacuum;
c. a bowl having an outlet neck at the lower end thereof which is seated on and solely supported by said vacuum operated sewage discharge valve;
d. support means for supporting said vacuum operated sewage discharge valve;
e. said bowl having an open upper end with a rim therearound;
f. a seat mounted on said rim;
g. a vacuum operated flushing water supply means carried by said bowl for supplying a predetermined amount of flushing water into said bowl; and
,h. a vacuum operated control system carried by said bowl for selectively activating said vacuum operated sewage discharge valve and said vacuum operated flushing water supply means for a predetermined flushing cycle.
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Accused Products
Abstract
A vacuum flush water closet having a bowl and rim which are made from steel stampings covered with chemical resistant procelain. The water closet has a self-contained flushing water and sewage valve discharge control system which is operatively mounted around the bowl and enclosed by an outer shroud made of a molded high impact plastic material. The water closet is shock proof and is mounted on a base plate that may be fixedly secured to a mounting surface, such as a floor or ship'"'"'s deck. The bowl is mounted on a sewage discharge valve which is spring closed and vacuum opened. Flushing water is supplied through a spray ring mounted around the upper end of the bowl. The flushing water is controlled by a vacuum operated valve. The operation of the flushing water valve and the sewage discharge valve is controlled by a vacuum-gravity timer which is activated by a push button switch mounted at the rear of the bowl rim. The length of the flushing cycle and the sewage discharge cycle is controlled by the vacuum-gravity timer. The flushing cycle takes place in a short time interval and a minimum amount of water is employed for flushing purposes.
45 Citations
26 Claims
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1. In a vacuum flush water closet, the combination, comprising:
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a. a sewage discharge valve that is operated by vacuum; b. means for producing a vacuum; c. a bowl having an outlet neck at the lower end thereof which is seated on and solely supported by said vacuum operated sewage discharge valve; d. support means for supporting said vacuum operated sewage discharge valve; e. said bowl having an open upper end with a rim therearound; f. a seat mounted on said rim; g. a vacuum operated flushing water supply means carried by said bowl for supplying a predetermined amount of flushing water into said bowl; and
,h. a vacuum operated control system carried by said bowl for selectively activating said vacuum operated sewage discharge valve and said vacuum operated flushing water supply means for a predetermined flushing cycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. In a vacuum flush water closet, the combination comprising:
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a. a sewage discharge valve that is operated by vacuum; b. means for producing a vacuum; c. a bowl having an outlet neck at the lower end thereof which is seated on and solely supported by said vacuum operated sewage discharge valve; d. said bowl having an open upper end with a rim therearound; e. a seat mounted on said rim; f. a vacuum operated flushing water supply means carried by said bowl for supplying a predetermined amount of flushing water into said bowl; g. a vacuum operated control system carried by said bowl for selectively activating said vacuum operated sewage discharge valve and said vacuum operated flushing water supply means for a predetermined flushing cycle; h. a base plate; i. means for mounting said vacuum operated sewage discharge valve on said base plate and for releasably securing the bowl and vacuum operated sewage discharge valve to the base plate; j. a shroud detachably mounted between said rim and base plate around said vacuum operated sewage discharge valve and bowl for enclosing the same; k. a timer means that is operated by vacuum and gravity for operating said vacuum operated flushing water supply means; l. a dispensing vacuum has valve connected to said timer means for connecting the timer means to said means for producing a vacuum; and
,m. an activation switch means connected to said means for producing a vacuum and to said timer means for operating said flushing water supply means and said last mentioned valve for predetermined operating periods. - View Dependent Claims (20)
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21. A vacuum control system including a vacuum operated sewage system having a vacuum flush water closet, a means for producing a vacuum, a flushing water flow control valve that is operated by vacuum, and a sewage discharge valve that is operated by vacuum, the combination comprising:
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a. a vacuum operated vacuum control valve connected to said means for producing a vacuum and to said vacuum operated sewage discharge valve for selectively supplying vacuum to said vacuum operated sewage discharge valve; b. timer means operated by vacuum and gravity for operating said vacuum operated flushing water flow control valve and said vacuum operated vacuum control valve; and
,c. push button activation switch connected to said means for producing a vacuum and said timer for initiating a flushing cycle in said water closet. - View Dependent Claims (22, 25, 26)
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23. In a vacuum control system for a sewage system operated by vacuum having a vacuum flush water closet, a means for producing a vacuum, a flushing water flow control valve that is operated by vacuum, and a sewage discharge valve that is operated by vacuum, the combination comprising:
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a. a vacuum operated vacuum control valve connected to said means for producing a vacuum and to said vacuum operated sewage discharge valve for selectively supplying vacuum to said vacuum operated sewage discharge valve; b. a timer, that is operated by vacuum and gravity, connected to said vacuum operated flushing water flow control valve and said vacuum operated vacuum control valve for operating said last named valve; c. a push button activation switch connected to said means for producing a vacuum and said timer for initiating a flushing cycle in said water closet; and
,d. said timer including a pair of vacuum flow control valves and a pivoted lever arm, a cam means for operating and pair of vacuum flow control valves, said cam means being mounted on the pivoted lever arm, and a vacuum operated piston connected to said lever arm and movable from an inoperative position by vacuum to an operative position and then back to an inoperative position by gravity. - View Dependent Claims (24)
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Specification