Water faucet with timing device

• US 4,653,534 A
• Filed: 03/24/1986
• Issued: 03/31/1987
• Est. Priority Date: 03/24/1986
• Status: Expired due to Fees

• Current Assignee: Shen Chung-Shan
• Original Assignee: Shen Chung-Shan
• Inventors: Chung-Shan, Shen
• Primary Examiner(s): Cohan, Alan
• Application Number:
  US06/843,129
• Time in Patent Office: 372 Days
• Field of Search: 137/624.11, 137/624.12, 137/624.21
• US Class Current: 137/624.12
• CPC Class Codes: F16K 21/16 closing after a predetermined quantity of fluid has been delivered F16K21/10 takes precedence
• CPC Class Codes: F16K 31/48 actuated by mechanical timing-device, e.g. with dash-pot self-closing valves F16K21/16
• CPC Class Codes: Y10T 137/86397 With independent valve controller

Abstract

It is a water faucet, which mainly comprises a control rod, a valve stem, and a clutch assembly being mounted between the control rod and the valve stem. The clutch assembly can only be driven by the control rod to rotate an angle of 90°. After the control rod rotating clockwise at a given angle, a timer will drive it counter-clockwise slowly toward original position thereof so as to supply water during a given period of time. The inlet end of the water pipe is connected with a plug-in pipe, of which the tail end is furnished with several water holes. The plug-in pipe is to be inserted into a plug valve seat in the water pipe so as to open a spring type of automatic plug valve, and to let water enter into the faucet.

Claims

1. A water faucet with timing device comprising:

a knob of which the outer edge of bottom has a first lug, and the bottom surface near the central portion has a second lug;

a control rod being attached to the bottom of said knob;

a timer mounted on said control rod; and

said timer including a coil spring that can store a torsional energy upon being wound with said knob, a driven shaft connected with the center end of said coil spring and a driven gear, a swinging member, and several idle gears being engaged one another and also engaged with said driven gear and said swinging member; and

the top of said driven shaft having a lug being in contact with the second lug of said knob;

a spring being mounted between said timer and said control rod;

a rotary seat attached to the lower end of said control rod; and

under the bottom of said rotary seat, two 1/4-circle-shaped flanges being furnished, and one end of said 1/4-circle-shaped flange having a bevel surface, while the other end of said 1/4-circle-shaped flange having a vertical end; and

the bottom surface of said rotary seat being furnished with guide channels;

a fixed seat being fixed in position under said rotary seat; and

the top of said fixed seat being furnished with several semi-circular flanges, of which one end of each has a bevel surface, while the other end has a vertical surface; and

said fixed seat having a central hole; and

a valve to control the water stream; and

valve stem of said valve passing through the central hole of said fixed seat and then being connected with a driven member; and

before the several 1/4-circle-shaped flanges under the bottom of said rotary seat climbing over the several semi-circular flanges on said fixed seat, said driven member being caught in the guide channels under the bottom of said rotary seat;

otherwise, said driven member being not caught in said guide channels.

2. A water faucet as claimed in claim 1, which further comprises a case portion, of which the top is provided with a stop stud for stopping the first lug of said knob, and a lug with a bevel side for stopping, in one direction, the first lug of said knob.

3. A water faucet as claimed in claim 1, wherein said valve comprises a pendent lever mounted under the bottom end of said valve stem, a ball seat with a central hole, and a ball that can close said central hole by means of its weight and the water stream pressure before being driven by said pendent lever.