Slow closing faucet

A slow-closing faucet comprising a casing having an inlet and an outlet, a removable cartridge in said casing for controlling the flow of water between said inlet and said outlet, a piston in said cartridge, said cartridge having an annular groove and an annular valve seat positioned therein, said cartridge having a venting slot adjacent said groove, said venting slot communicating said groove with said outlet to prevent the buildup of water pressure in said groove behind said seat.

For use in a slow-closing faucet which has a casing with an inlet and an outlet and a manual push button on top, the improvement comprising a self-contained cartridge adapted to be removably positioned in the casing upon insertion therein when the push button is removed, the cartridge including a control mechanism for opening and closing a valve seat in the cartridge which, when the cartridge is positioned in the casing, is disposed between the inlet and the outlet, a cover secured to the top of the cartridge, an operating stem extending through the cover so that the upper portion thereon will be opposed to the push button and is in spaced slidable relationship thereto when the cartridge is assembled in the casing, and means in the cartridge associated with the operating stem to allow closing of the valve seat in the event the push button is continuously held in operative position.

In a faucet including a casing having an inlet connection and an outlet connection, a self-contained cartridge removably positioned and supported in the casing and having a valve mechanism therein, the cartridge being constructed, arranged and disposed in the casing so as to prevent flow between the inlet and outlet connections except through the valve mechanism of the cartridge, a control mechanism for opening and closing the valve mechanism so as to permit and control flow between the inlet and outlet connection, a cover on the top of the cartridge, a manul pushbutton on top of the casing and in slidable relationship to the casing, an operating stem extending through the cover between the control mechanism and the pushbutton so that upon actuation of the pushbutton the valve mechnism in the cartridge will be operated, a mounting for the pushbutton allowing it to be removed from the casing, and locking means for releasably holding the cartridge in the casing and positioned to be inaccessible when the pushbutton is in place on the casing, and means in the cartridge and association with the operating stem to allow closing of the valve mechanism in the event that the pushbutton is continuously in operative position.

In a slow closing faucet including a casing having inlet and outlet connections therein, a self-contained flow control cartridge removably positioned in the casing and having a valve mechanism therein, the cartridge being constructed and disposed in the casing so as to prevent flow between the inlet and outlet connections except through the valve mechanism, the valve mechanism including a fixed seat and a movable piston biased to normally close on the seat, a pressure chamber behind the piston, a manually operable pushbutton on the casing controlling the pressure chamber and constructed, upon actuation thereof, to relieve the pressure in the pressure chamber and to thereby allow the piston to separate from the seat thereby opening the valve mechanism and allowing flow between the inlet and outlet connections, a limited bypass providing communication between the inlet connection and the pressure chamber, and a timing and filtering ring on the piston controlling the bypass and having a series of vertical grooves around the inside thereof with a series of pockets interconnected by channels around the ring in communication with the grooves.

In a slow closing faucet comprising a tubular casing having a bottom inlet and an outlet, a flow control cartridge removably inserted in the casing for controlling the inlet and outlet flow of fluid through the faucet, sealing means between the bottom inlet of the cartridge and the casing, a flow regulating device in the inlet adjacent the sealing means, sealing means between the casing and the cartridge, locking means between the cartridge and casing, a pushbutton on top of the casing effective to control the cartridge to cause fluid flow through the faucet from the bottom inlet to the outlet, and means for disconnecting the pushbutton from the cartridge to enable removal of the cartridge from the casing, both of the sealing means being provided on the cartridge and being withdrawn from inside the casing with the cartridge, the locking means between the cartridge and casing comprising a series of balls held in place in the walls of the casing by a resilient cup-shaped retaining member, the cartridge having a body and a top cover and a bottom cover attached thereto, the pushbutton having a stem extending through the top cover into operative relationship to the cartridge, and sealing means around the pushbutton and secured to the bottom of the top cover.