The present invention relates generally to the actuation of a valve. More particularly, the present invention relates to the actuation of a valve using a body part or limb.
It has been amply demonstrated by a variety of studies and research that conventional hand operated faucets are a source of wasted water and energy and a cross contamination point for the spread of infectious diseases. Several devices have been developed and marketed to overcome these problems but all have some disadvantages. Mechanical foot pedal or knee operated faucets are expensive and often require extensive and costly modifications to plumbing and cabinetry. Infra-red sensor electrically operated faucets are costly to install, require an electrical outlet, may be erratic in operation and may permit cold and hot water cross flow. Foot pedal valves controlling the application of air pressure to water controlling valves are expensive and often difficult to install and require a compressed air source. Some devices attach to the spout of the faucet and although easily installed, they connect the cold and hot water supplies together, thereby permitting cross flow between them. Of these, ultrasound sensor electrically operated valves require batteries and are too bulky to comfortably adapt to many faucets. Other types operate by a foot control supplying fluid pressure through flexible tubing connected to a spout mounted valve. These tend to be untidy and cumbersome to operate. Examples of such devices are described and illustrated in U.S. Pat. No. 5,029,806, dated Jul. 9, 1991 granted to Chaung for a “Foot-Controlled Valve” and in U.S. Pat. No. 3,536,294, dated Oct. 27, 1970, granted to Rodrigues for a “Foot-Operated Control Valve Attachment Device for Water Faucets.”
Pubben, U.S. Pat. No. 5,505,227, discloses a “hands free” system for controlling the flow of water to a faucet. The system includes a pilot valve which provides pilot water of controlled pressure to operate diaphragm valves in a control block. The valves in the control block may be respectively connected between hot and cold water supply lines and a faucet. The pilot valve may be located in a position where it can be operated by a user's knee or elbow, or in another location where foot operation is possible.
U.S. patent application Ser. No. 10/456,085 (Publication No. 2004/0200987) by Houghton discloses a hands free water faucet controller device to regulate the flow rate and temperature mix using a foot controllable actuator.
It is, therefore, desirable to have a simple valve actuator operable by either hip, arm, elbow, foot or knee etc. and easily installed in association with a cabinet. It is further desirable to have an actuator simple in construction, reliable, economical and adjustable to the height of different cabinet toe boards.
It is an object of the present invention to obviate or mitigate at least one disadvantage of previous faucet controller assemblies.
In a first aspect, the present invention provides a faucet controller for operating a valve mounted in association with a cabinet, having mounting means for mounting the valve to the cabinet, a joystick actuator mountable on the valve for movement between a valve operating position and a normal at rest position, and a whisker connected with the joystick for forcing the joystick actuator into the valve operating position.
In a first aspect the present invention provides a faucet controller for operating a valve mounted in association with a faucet, including a joystick actuator connected with the valve for movement between normal at rest position and a valve operating position; and a whisker connected with the joystick actuator for forcing the joystick actuator into the valve operating position.
Preferably the joystick actuator comprising a disk retained within a disk housing, the disk adapted to reciprocate between a normal at rest position and a valve operating position upon activation of the whisker.
Preferably the disk housing includes a joystick guide adapted to restrict the movement of the joystick to a single plane. Preferably, the joystick guide includes a channel formed within the disk housing and a corresponding protuberance extending from the surface of the disk.
Preferably the disk is operatively associated with a valve piston to operate the valve, wherein rocker movement of the disk by way of force on the whisker axially displaces the valve piston to activate the valve.
Preferably, the disk has a curved face. Preferably, the disk has a tapered outer surface.
Preferably the whisker includes a flexible elastic member. Alternatively, the whisker includes a substantially rigid member. Alternatively, the whisker includes a composite member, a first portion of the composite member including a substantially rigid member and a second portion of the composite member including a flexible elastic member.
Preferably the elastic material is selected from the group of plastic, rubber, or spring steel. Preferably, the whisker includes a substantially linear spring. Preferably, the whisker includes a coiled spring.
Preferably, the whisker includes a shaped member. Preferably, the shaped member is selected from the group of a beaver tail, paddle, arm, cylinder, cone, curved member, spiral member, sinusoidal member, or zigzag member.
Preferably, a guard is fixed to an outer end of the whisker.
Other aspects and features of the present invention will become apparent to those ordinarily skilled in the art upon review of the following description of specific embodiments of the invention in conjunction with the accompanying figures.
Embodiments of the present invention will now be described, by way of example only, with reference to the attached Figures, wherein:
Generally, the present invention provides a faucet controller for controlling the flow of a fluid through a valve. The faucet controller is particularly suitable for valves of the type disclosed in U.S. Pat. No. 5,505,227, but is also applicable to other types of valves, particularly 3-way pilot valves that can be actuated by the depression of a piston or button.
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While shown as a relatively straight, elastic member, the whisker 140 may function in a wide variety of configurations, shapes and sizes. For example, but not limited to, a beaver tail, paddle, arm, cylinder, cone, curved, spiral, sinusoidal, zigzag etc. and may be long, short, slender, narrow, wide etc.
Depending on the material or combination of materials chosen, the whisker 140 may end up being very slender, for example if constructed out of straight spring steel. In such cases, and optional guard 170 in the form of a enlarged sphere or disk may be added to the end of the whisker 140 to improve visibility and improve ergonomics.
The whisker 140 may be identified by color to designate the fluid delivered by the faucet (not shown) being controlled by the faucet controller 10, for example red for hot, blue for cold, red and blue for mix, or otherwise marked. The whisker 140 may be made in a variety of configurations. Preferably, as shown in
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In operation, application of pressure to the whisker 140 via a user's finger, hand, arm, elbow, shoulder, hip, leg, knee, calf, foot, toe etc. or other means causes movement of the joystick 100, thus causing pivotal movement of the disk 70 within the disk housing 70 to depress the valve piston 90, causing the valve 20 to move between a normal at rest position and a valve operating position. Release of the pressure on the whisker 140 allows the joystick 100 and the valve 20 to return to the normal at rest position.
In operation, to facilitate cleaning of the toe board 50 or the back side of the whisker 140, the whisker 140 may be removable from the joystick 100 (and/or may be user replaceable).
In the preceding description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the embodiments of the invention. However, it will be apparent to one skilled in the art that these specific details are not required in order to practice the invention.
The above-described embodiments of the invention are intended to be examples only. Alterations, modifications and variations can be effected to the particular embodiments by those of skill in the art without departing from the scope of the invention, which is defined solely by the claims appended hereto.
Number | Date | Country | Kind |
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PCT/CA2007/001832 | Oct 2007 | CA | national |
This application claims priority to PCT application PCT/CA2008/000311, entitled “Whisker Actuated Faucet Controller,” filed Feb. 20, 2008 and published Aug. 28, 2008 as WO2008/101326 A1, which claims priority to PCT application PCT/CA2007/001832, filed Oct. 16, 2007, and U.S. Provisional Application 60/890,782, filed Feb. 20, 2007. All of the foregoing are incorporated herein by reference.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/CA2008/000311 | 2/20/2008 | WO | 00 | 8/18/2009 |
Number | Date | Country | |
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60890782 | Feb 2007 | US |