Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 7325565 | Backflow valve The backflow valve of the present invention includes a valve housing having a cavity therein with an inlet and an outlet to the valve cavity. A switch is in communication with the valve cavity and is moveable from an off position to an on position in response to liq... | 02/05/2008 |
| 7273585 | Biological fluid disposal system A biological fluid disposal system having a water flow line, a biological fluid line in fluid communication with the water flow line, a disinfectant line in fluid communication with the water flow line and the biological fluid line, and a venturi connected to one of... | 09/25/2007 |
| 7163048 | Automatic monitoring system for thermal energy storage plants An automatic monitoring system for thermal energy storage (TES) plants wherein a pilot ice tank (11) uses Archimedes' principle to determine the ice inventory level by measuring the resultant force (28) of the algebraic addition of the weight of the ic... | 01/16/2007 |
| 7138056 | Filter underdrain system for backwash flow and method for measuring same A filter underdrain system and a method for measuring the water flow through the underdrain filter system. The apparatus includes panel members assembled to form a perforate grid on the filter base structure of an underdrain block. The panels are generally rectangul... | 11/21/2006 |
| 7125317 | Multi-port sandblasting manifold and method A method and apparatus is provided to simplify sandblasting processes while increasing applied coverage areas in sandblasting operations. The method and apparatus provide a manifold assembly having a plurality of nozzles and that is rigidly attached to an air supply... | 10/24/2006 |
| 7121140 | Liquid quantity sensing device A liquid quantity sensing device which can easily and accurately measure liquid quantity stored in a container is disclosed. It utilizes an infrared ray or a supersonic sensing element associated with a float placed in the measuring tube and an electrical circuit bo... | 10/17/2006 |
| 7044831 | Multi-port sandblasting manifold and method A method and apparatus is provided to simplify sandblasting processes while increasing applied coverage areas in sandblasting operations. The method and apparatus provide a manifold assembly having a plurality of nozzles and that is rigidly attached to an air supply... | 05/16/2006 |
| 7000627 | Toilet safety valve An apparatus and method for ensuring that the flow of water to a toilet tank is shut off. The first preferred embodiment of the invention combines a conventional float mechanism to shut off the flow of water to a toilet tank when full, with a timer mechanism to shut... | 02/21/2006 |
| 6629627 | Level control systems for high purity chemical delivery systems A highly reliable digital level sensor assembly is provided to replace optical and capacitance type sensors in high purity chemical delivery systems. The digital level sensor assembly is particularly useful in bulk chemical refill delivery systems for hig... | 10/07/2003 |
| 6591860 | Infinitely adjustable, low deadband, point contact pneumatic level switch A zero to 100% continuously adjustable, low deadband, point contact pneumatic level switch is used in conjunction with an electronic controller, a pneumatic-to-current converter and a current-to-pneumatic converter to control brine level in a gravity-fed ... | 07/15/2003 |
| 6453939 | Flotation cell fluid level control apparatus A fluid level control apparatus for selectively controlling the movement of liquid flowing out of a flotation cell is described. The fluid level control apparatus is significantly reduced in size in comparison with the flotation cell or cells to which it ... | 09/24/2002 |
| 6431201 | Wet battery and vehicle-based water management system A water management system for a motor vehicle in which water is collected from the condenser (1) of the air-conditioning unit, stored in a master water tank (5) and distributed therefrom to the battery (15), screen wash jet (27) and radiator (37). The veh... | 08/13/2002 |
| 6082394 | Closed type water storage container with water level controller and air filtering device A closed type water storage container with water level controller and air filtering device, wherein the closed type water container is linked to the water level controlling device by a connection tube and the connection tube is provided with filtering mat... | 07/04/2000 |
| 5967175 | Waste line stoppage detector and automatic water shutoff system A waste line stoppage detector and automatic water shutoff system is utilized to prevent the overflow of raw sewage from a plumbing fixture. Electronic shutoff valves are electronically connected to a waste line stoppage detector. One application involves... | 10/19/1999 |
| 5704389 | Waste line stoppage detector and automatic water shutoff system A waste line stoppage detector and automatic water shutoff system is utilized to prevent the overflow of raw sewage from a plumbing fixture. Electronic shutoff valves are electronically connected to a waste line stoppage detector. One application involves... | 01/06/1998 |
| 5660334 | Remote control for electrostatic sprayer elements An electrostatic spray system has a high voltage section where an electric charge is applied to a liquid and the high voltage section is isolated from a lower potential section, such as a frame. The spray system has components on the high voltage section ... | 08/26/1997 |
| 5607002 | Chemical refill system for high purity chemicals A highly reliable digital level sensor assembly is provided to replace optical and capacitance type sensors in high purity chemical delivery systems. The digital level sensor assembly is particularly useful in bulk chemical refill delivery systems for hig... | 03/04/1997 |
| 5542499 | Electromechanical oil level regulator An oil level regulator is provided for controlling the oil level in the crankcase of one or more refrigeration compressors or the like. The regulator has a closed chamber for containing the oil. A float-controlled switch is operable to actuate a solenoid ... | 08/06/1996 |
| 5515883 | Waste line stoppage detector and automatic water shutoff system A waste line stoppage detector and automatic water shutoff system is utilized to prevent the overflow of raw sewage from a plumbing fixture. Electronic shutoff valves are electronically connected to a waste line stoppage detector. One application involves... | 05/14/1996 |
| 5465766 | Chemical refill system for high purity chemicals A highly reliable bulk chemical refill system for high purity chemicals is provided. The system employs at least one metallic level sensor in a refillable ampule. The refillable ampule of the present invention comprises a metallic level sensor for sensing... | 11/14/1995 |
| 5435145 | Refrigerant flow rate control based on liquid level in simple vapor compression refrigeration cycles Pulse width modulation is used to control the flow rate through a solenoid expansion valve in a refrigeration system using a simple vapor compression cycle. The refrigeration cycle includes a phase separator which receives two phase refrigerant from the c... | 07/25/1995 |
| 5365969 | Float with skirt to prevent leakage due to oversudsing An improved float to prevent over-filling of a dishwashing machine including a cylindrical main float body, a skirt attached to the main float body and extending outwardly and downwardly therefrom, and a float stem. The main float body includes a lower po... | 11/22/1994 |
| 5339854 | Conservation system and method An apparatus for conserving utilities including coolant, in a system having an evaporative cooler equipped with a water reservoir for holding a predetermined amount of cooling water and also equipped with a recirculating system for recirculating the cooli... | 08/23/1994 |
| 5309939 | Safety device for water-conducting household appliances A water-conducting household appliance includes a liquid container having a static content level, a fill control device, a cycle control unit, an inflow valve to be opened by the cycle control unit and closed by at least one of the fill control device and... | 05/10/1994 |
| 5290402 | Automatic cold/hot distilled water fountain An automatic cold/hot distilled water fountain which automatically performs water boiling, condensing, storing and heating processes to provide purified cold/hot drinking water, mainly composed of a distilling chamber, a condensing mechanism, a water rese... | 03/01/1994 |
| 5209254 | Water and sewerage system for construction, and protection for the same A water and sewerage system for a construction, has at least one water consumer, at least one water supply pipe adapted to supply water from a water source to the water consumer, at least one water drainage pipe adapted to drain water from said consumer t... | 05/11/1993 |
| 5072600 | Wash column ice-pack bottom detection device Apparatus comprising a vessel capable of receiving a variable supply of an aqueous ice slurry in which an upper packed ice bed can float on an aqueous volume; a hollow conduit having a first end located in the lower internal space of the vessel and a seco... | 12/17/1991 |
| 5018550 | Dishwasher overfill protection device A dishwasher is provided with an improved apparatus for protecting the tub from being overfilled in the form of a float having a float stem that is automatically captured upon insertion through a passage in the tub bottom wall such that the float will be ... | 05/28/1991 |
| 4994211 | Water distribution apparatus for evaporative cooling system Water control apparatus for evaporative cooling system includes a medium which is saturated with water from a water supply and water draining from the medium is directed to a pan or trough in which there is a float system and which includes orifices throu... | 02/19/1991 |
| 4940861 | Liquid shut-off system The system is designed to shut-off the flow of liquid in a conduit, unattended, i.e., automatically, in the event of a liquid conduit rupture, liquid overflow, or the like. A float which carries a mercury switch is set over a recess formed therefor and in... | 07/10/1990 |
| 4936389 | Fluid dispenser for an aircraft The momentary position, between open and closed, of a bottom door panel controlling release of fluid from an airborne container containing the fluid is governed by both the height of the fluid in the container and the instantaneous position of the door pa... | 06/26/1990 |
| 4904830 | Liquid shut-off system The System is designed to shut-off the flow of liquid in a conduit, unattended, i.e., automatically, in the event of a liquid conduit rupture, liquid overflow, or the like. A float which carries a mercury switch is set over a recess formed therefor and in... | 02/27/1990 |
| 4865073 | Liquid level control for refrigeration system A liquid level control in a refrigeration system operates a solenoid valve to maintain the level of liquid refrigerant in a vessel within a range defined by predetermined lower and upper liquid levels, sounds an alarm if the upper level is exceeded and st... | 09/12/1989 |
| 4856288 | Refrigerant alert and automatic recharging device A sensor for sensing the quantity of refrigerant in a closed loop refrigeration system, with the sensor having attachment means on a lower portion thereof such that it may be installed in direct communication with the refrigerant line of the refrigeration... | 08/15/1989 |
| 4771804 | Liquid level sensing and control assembly A liquid level sensor and controlling assembly disposed and mounted in direct communication with a reservoir of liquid to be monitored and including a float structure connected to an elongated stem formed of magnetic material which is disposed to selectiv... | 09/20/1988 |
| 4744808 | Liquid level sensing and control A fluid flow chamber including a housing defining a chamber, a chamber inlet and a chamber outlet for flow of liquid therethrough, a float in the chamber, and a magnet and magnetic position sensor, one of which is carried by the float for movement with th... | 05/17/1988 |
| 4700738 | Liquid level controller An improved liquid level controller having a housing, a body connecting from the rear of the housing for connecting directly to a vessel and to allow transmission of forces exerted by the displacer type float within the vessel responsive to changes in the... | 10/20/1987 |
| 4688699 | Bactericidal mixture control system having flow and dispense duration controls for respective substances A mixture control system for mixing a bactericidal chemical and water in a reservoir in batches. Flow of the water into the reservoir is initiated by a float actuated switch and the duration of the flow is controlled. While the flow is occurring, a dispen... | 08/25/1987 |
| 4687031 | Valve control with mechanical memory A pair of flapper valves are mounted in parallel to control the flow of a fluid into a reservoir. The flapper valves are opened by a first rotatable cam which is rotated through one or more complete revolutions when a float control switch in the reservoir... | 08/18/1987 |
| 4655244 | Float operated valve A float operated valve is provided with the rise of a float being temporarily prevented by the elastic force of a spring mounted on the valve body. When the buoyant force of the float reaches a predetermined maximum buoyant force as a result of the water ... | 04/07/1987 |
