Rinse fluid valve for a vacuum toilet
First Claim
1. A rinse fluid valve for use in a vacuum toilet system having a waste receptacle with a rinse fluid dispenser associated therewith and a source of rinse fluid, the rinse fluid valve comprising:
- a housing having an inlet in fluid communication with the rinse fluid source and an outlet in fluid communication with the rinse fluid dispenser;
a flow path extending from the inlet to the outlet;
a moveable rinse fluid valve member disposed in the flow path and moveable between open and closed positions; and
a second valve member disposed in the flow path upstream of the rinse fluid valve and having a normally open position to allow fluid flow therethrough, the second valve member automatically actuating to a closed position after a desired volume of fluid has passed therethrough thereby to cease rinse fluid flow through the flow path.
1 Assignment
0 Petitions
Accused Products
Abstract
A rinse fluid valve for use in a vacuum toilet system is disclosed. The vacuum toilet system includes a waste receptacle with a rinse fluid dispenser associated therewith and a source of rinse fluid. The rinse fluid valve has a housing with an inlet in fluid communication with the rinse fluid source and an outlet in fluid communication with the rinse fluid dispenser. A flow path extends from the inlet to the outlet. A moveable rinse fluid valve member is disposed in the flow path and movable between open and closed positions. A fuse valve is disposed in the flow path upstream of the rinse fluid valve and has a normally open position to allow fluid flow therethrough. The fuse valve is actuatable to a closed position after a desired volume of fluid has passed therethrough, thereby to cease rinse fluid flow through the flow path.
-
Citations
18 Claims
-
1. A rinse fluid valve for use in a vacuum toilet system having a waste receptacle with a rinse fluid dispenser associated therewith and a source of rinse fluid, the rinse fluid valve comprising:
-
a housing having an inlet in fluid communication with the rinse fluid source and an outlet in fluid communication with the rinse fluid dispenser;
a flow path extending from the inlet to the outlet;
a moveable rinse fluid valve member disposed in the flow path and moveable between open and closed positions; and
a second valve member disposed in the flow path upstream of the rinse fluid valve and having a normally open position to allow fluid flow therethrough, the second valve member automatically actuating to a closed position after a desired volume of fluid has passed therethrough thereby to cease rinse fluid flow through the flow path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A rinse fluid valve for use in a vacuum toilet system having a waste receptacle with a rinse fluid dispenser associated therewith and a source of rinse fluid, the rinse fluid valve comprising:
-
a housing having an inlet in fluid communication with the rinse fluid source and an outlet in fluid communication with the rinse fluid dispenser;
a flow path extending from the inlet to the outlet;
a moveable rinse fluid valve member disposed in the flow path and moveable between open and closed positions; and
a second valve disposed in the flow path upstream of the rinse fluid valve, the second valve including a second valve member moveable between an open position allowing fluid flow therethrough and an automatically closed position after a desired volume of fluid has passed therethrough to thereby prohibit fluid flow therethrough;
and a position sensor for detecting a position of the second valve member and generating a position signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A rinse fluid valve for use in a vacuum toilet system having a waste receptacle with a rinse fluid dispenser associated therewith and a source of rinse fluid, the rinse fluid valve comprising:
-
a housing having an inlet in fluid communication with the rinse fluid source and an outlet in fluid communication with the rinse fluid dispenser;
a flow path extending from the inlet to the outlet; and
a moveable rinse fluid ball valve member disposed in the flow path having a flow passage extending therethrough, the valve member moveable between a closed position, in which the flow passage does not communicate with the flow path to prevent fluid flow, and an open position, in which the flow passage is aligned with the flow path to allow fluid flow;
a freeze protection valve formed in the ball valve and having a valve seat and a movable valve member biased away from the valve seat, wherein sufficient fluid flow pressure drives the valve member into engagement with the valve seat.
-
Specification