Active solid-state devices (e.g. – transistors – solid-state diode – Regenerative type switching device – Bidirectional rectifier with control electrode
Reexamination Certificate
2002-05-28
2004-06-22
Bastianelli, John (Department: 3754)
Active solid-state devices (e.g., transistors, solid-state diode
Regenerative type switching device
Bidirectional rectifier with control electrode
C257S289000, C257S129000, C137S801000
Reexamination Certificate
active
06753554
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a plumbing related device for use in connection with regulating the flow of water through a faucet. The water flow regulating device has particular utility in connection with providing a hands free method for permitting and prohibiting the flow of water to a faucet.
2. Description of the Prior Art
Water flow regulating devices are desirable for controlling the flow of hot or cold water to a faucet. Regulating the water flow to specific faucets allows the user to conserve potable water and the energy used to heat it. This translates to a financial savings as well as an aid to conservation of natural resources.
Most conventional faucets include one or more fluid valves that are turned on manually by the user who operates the valve control device. These devices require the user to manipulate the valve controls first with dirty hands and then again after he washes his hands. This could lead to the user picking up the same germs and dirt he just attempted to wash off as well as any dirt and germs left by previous users. The proposed water flow regulating device would allow the user a hands free method of washing his hands, eliminating the possibility of picking up extraneous material from the valve controls. Additionally, when the user engages in an activity which requires repeated pauses in the need for water flow, such as washing the dishes, washing the car, watering in the garden, and the like, it is oftentimes more convenient to leave the water running than to readjust the temperature and pressure each time the water is turned off and then on again. Thus, conventional faucets can lead to the waste of many gallons of water.
The use of water regulating devices is known in the prior art. For example, U.S. Pat. No. 3,505,692 to Norman A. Forbes discloses a proximity control for a lavatory that uses a dual antenna system to determine when a person is waiting for water flow from the faucet. However, the Forbes '692 patent does not allow the user to determine how long the water runs since water is only permitted to flow for a predetermined amount of time, and has further drawbacks of forcing the user to wait a predetermined amount of time before the water is permitted to flow again. This can be very inconvenient and time consuming for the user who requires more than the predetermined amount of time to clean his hands, a spill from his clothing, or to help clean a child's hands. Additionally, the complexity of the internal components for the Forbes '692 device complicates the manufacturing process, thereby increasing the price for the device.
U.S. Pat. No. 4,563,780 to Simcha Z. Pollack discloses an automated bathroom that comprises an electronically controlled shower, bathtub, sink, and toilet. The Pollack '780 device includes temperature sensors in all of the receptacles, water level sensors, and timers to determine the amount of time allowed for water flow. However, the Pollack '780 device is extremely complex, leading to higher manufacturing prices. Additionally, due to the complexity of the device, the Pollack '780 device would be time consuming and difficult to master for proper usage.
Similarly, U.S. Pat. No. 4,189,792 to Carlos W. Veach discloses a push button controlled water system which controls both the mixing of hot and cold water and the subsequent flow of water to the spigot. However, the Veach '792 patent does not provide for hands free operation, requiring manual operation of the “ON” and “OFF” push button controls, as well as the rotational temperature control valve.
Likewise, U.S. Pat. No. Des. 295,614 to Joseph Touch discloses the ornamental design for a water temperature and flow regulator panel. However, the Touch '614 patent provides only a panel for regulating water flow and not the actual hardware to accomplish this function.
U.S. Pat. No. 5,318,070 to Edward C. Surabian discloses an electric faucet valve operator and adapter that use push buttons to electromechanically control the rotational force necessary to manipulate a faucet. However, the Surabian '070 patent does not provide hands free operation of the device, since the buttons require that the user place his fingers on them for activation. Additionally, the Surabian '070 device is battery powered, requiring frequent replacement of batteries and increasing the cost and waste associated with such a device.
Lastly, U.S. Pat. No. Des. 313,761 to Peter W. Bressler discloses the ornamental design for an actuator plate for a temperature control valve. However, the Bressler '761 patent does not deal with the issue of water regulation and is not pertinent to the present invention.
While the above-described devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not describe a water flow regulating device that allows a hands free method for permitting and prohibiting the flow of water to a faucet. The Forbes '692 patent would not be applicable for home use since it does not allow the user to determine how long the water runs, shutting off water flow after a predefined amount of time. Both the Forbes '692 and Pollack '780 devices are extremely complex, leading to higher manufacturing prices. Additionally, due to the complexity of the device, the Pollack '780 device would be time consuming and difficult to master for proper usage. Neither the Veach '792 nor the Surabian '070 patents provide hands free operation of the devices. Furthermore, the Surabian '070 device is battery powered, requiring frequent replacement of batteries and increasing the cost and waste associated with such a device. While the Touch '614 patent provides a panel for regulating water flow, it does not provide the actual hardware to accomplish this function. Finally, the Bressler '761 patent deals with the issue of temperature control and is not pertinent to the discussion of water flow regulation of the present invention.
Therefore, a need exists for a new and improved water flow regulating device that can be used to provide a hands free method for permitting and prohibiting the flow of water to a faucet. In this regard, the present invention substantially fulfills this need. In this respect, the water flow regulating device according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in doing so provides an apparatus primarily developed for the purpose of conserving water by controlling the flow of water to a faucet.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of water flow regulating devices now present in the prior art, the present invention provides an improved water flow regulating device, and overcomes the above-mentioned disadvantages and drawbacks of the prior art. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved water flow regulating device which has all the advantages of the prior art mentioned heretofore and many novel features that result in a water flow regulating device which is not anticipated, rendered obvious, suggested, or even implied by the prior art, either alone or in any combination thereof.
To attain this, the present invention essentially comprises a pair of solenoid valve assemblies connected to the hot and cold water pipes and a coupling device connected to the faucet. The coupling device has a control switch assembly with an “OFF” and “ON” position which prohibits or permits water flow through the solenoid valve assemblies. A set of push panel switches can be connected to the circuit and placed at various positions on the sink cabinet such that they can be accessed by the hand, hip, elbow, knee, or foot of the user.
A second embodiment of the present invention is for a faucet with a water flow regulating switch which essentially comprises a valve assembly inserted into a conventional
Gomes Antonio Jose
Gomes Dina
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