Bizarre Patents
Pizza Pie With Concentric Rings of Crust
A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.
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| Number | Title | Issue Date |
| 8042565 | Double check back flow prevention device A double check valve is provided that includes an in-line inlet check valve and an outlet check valve that cooperate to prevent back flow of fluid through the valve. The check valve also includes at least one vent that allows for fluid trapped within the check valve... | 10/25/2011 |
| 7954507 | Mixing eductor An eductor for mixing two liquids wherein the eductor includes a closed or non-air gap back flow prevention member. The vacuum profile of the eductor is altered by changing an opening in a passage portion to controllably divert water flow around the venturi tube or ... | 06/07/2011 |
| 7681584 | Pipe disconnector A system disconnector for physically disconnecting an upstream liquid system from a downstream liquid system by means of an outlet valve (35;135) depending on the pressure difference between the upstream and the downstream liquid system comprises an upstream ... | 03/23/2010 |
| 7575016 | Pipe disconnector with increased sealing power A system disconnector for disconnecting an upstream liquid system providing an inlet pressure from a downstream liquid system by a release valve (34) in response to a pressure drop between the systems, includes an upstream backflow preventer (40), a do... | 08/18/2009 |
| 7543599 | Siphon and backflow resistant valve A valve assembly for preventing backflow and siphoning in a plumbing line, the valve assembly comprising a valve body including a first end having a first aperture for receiving liquid from a supply source, a second end having an exit port for releasing liquid to a ... | 06/09/2009 |
| 7458388 | Freeze safe valve A freeze safe valve includes a housing coupled between an upstream tube and a downstream tube of a water flowing or supplying line for shutting off the water flowing or supplying line and for opening a drain port in response to the formation of ice on the downstream... | 12/02/2008 |
| 7409964 | Faucet type valve with backflow control in handle structure In a valve, the combination comprising a valve chamber, having a flow inlet and a flow outlet, a valve operator outside the chamber, a stopper in the chamber and operatively connected with the operator for movement toward and away from seat structure in the chamber,... | 08/12/2008 |
| 7370813 | Multiple function dispenser A dispenser for mixing and dispensing a liquid chemical concentrate from a container with a dilutent. The dispenser includes a two piece slideable eductor assembly, one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjus... | 05/13/2008 |
| 7341206 | Multiple function dispenser A dispenser for mixing and dispensing a liquid chemical concentrate with a dilutent from a container. The dispenser includes two slideable eductors one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjustment of concentr... | 03/11/2008 |
| 7331360 | Check valve with low shut off sound The present invention relates to the field of check valves and more specifically to check valves with substantially low operational noise or low shut off noise. Provided is changing a direction of a fluid that closes a first and second flap to produce a slit, gap or... | 02/19/2008 |
| 7325781 | Automatic bathroom flushers with modular design A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 02/05/2008 |
| 7311100 | Injection and adjusting handle for abrasive cutting-off machine The invention relates to a tool, in particular an abrasive cutting-off machine (1), having a cutting tool (7) and a protective hood (8), partly covering the cutting tool (7) and [lacuna] in its relative position to the cutting tool (7 | 12/25/2007 |
| 7302882 | Jump force vacuum booster The invention provides a method and apparatus wherein the apparatus includes a housing having a first end and a second end. The housing also includes a first aperture and a second aperture. The first aperture is positioned to communicate with a first fluid source at... | 12/04/2007 |
| 7293576 | Single-piece manifold with reduced pressure arrangement A single-piece manifold comprising a body having an inlet in communication with a water supply and an outlet that communicates with a sprinkler system having a main conduit adapted for fluid flow between the inlet and the outlet is disclosed. The body includes a mai... | 11/13/2007 |
| 7278442 | Vented port-cap for fire hydrant The vented port-cap includes a check-valve, which admits air into the barrel of the hydrant when the pressure inside is lower than the pressure outside. After an inspection of the hydrant, the hydrant can be left to drain by itself, even though the port-cap has been... | 10/09/2007 |
| 7249609 | Yard hydrant with closure valve check valve A yard hydrant having a valve body with a valve seat and a drain port. A closure valve disposed within the valve body and engaging the valve seat. The valve body having a conduit in fluid communication with the drain port and a hollow interior of the valve body. A c... | 07/31/2007 |
| 7245688 | Cooling system This invention relates to a nuclear reactor plant which includes a nuclear heat source (12), and a cooling system (10). The cooling system (10) includes at least two cooling circuits (26), each of which includes a plurality of coolant cha... | 07/17/2007 |
| 7232106 | Tilted and stepped diaphragm for control valves A diaphragm operated valve having the diaphragm attached at its lower end to a valve closure plug, and movable therewith, and attached at its upper end to a portion of valve body that forms the pressure cavity. The diaphragm has a stepped portion between its upper a... | 06/19/2007 |
| 7225830 | Fluid control valve A fluid control valve having a spring biased shuttle plunger member which opens or closes fluid flow through a plurality of radially spaced apart fluid passageways disposed between an upstream chamber and downstream chamber in the valve body responsive to a fluid pr... | 06/05/2007 |
| 7201363 | Valve A valve body (12) has an inlet opening (22) and an outlet opening (24) interconnected by a fluid passageway (28, 30) having a flow aperture (34). The valve comprises a diaphragm (14) (typically of the duckbill type) that is ... | 04/10/2007 |
| 7191962 | Sprayer apparatus with backflow valve The invention comprises, in one form thereof, a sprayer apparatus that includes a disengageable pressurized fluid source, a pressure chamber in fluid communication with the fluid source, a backflow valve, a sealed vessel, and a sprayer outlet. The backflow valve has... | 03/20/2007 |
| 7188822 | Enclosures for automatic bathroom flushers A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 03/13/2007 |
| 7175612 | Suction limiting device with variable control A suction limiting device with variable control for use in a surgical system includes a main vent body having a fluid carrying bore extending therethrough and a variable vent mechanism having a main vent opening in selective fluid communication with the fluid carryi... | 02/13/2007 |
| 7174911 | Fire hydrant with second valve Fire hydrants which feature additional structure for reducing the potential that those with ill intent can foul municipal water supplies by introducing toxins or other materials into fire hydrants. Various embodiments include valves which close off portions of the h... | 02/13/2007 |
| 7159731 | Air purge valve and filter pump cover employing same A filter pump cover according to the invention comprises a filter cap, an air purge valve, and a filter cap retainer. An air purge valve according to the invention is comprised of a valve cap, a screw-threaded portion, and a valve stem having one or more outward-fac... | 01/09/2007 |
| 7156363 | Bathroom flushers with novel sensors and controllers A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl... | 01/02/2007 |
| 7143779 | Pedestal hydrant A fluid delivering hydrant providing a valve actuated assembly with enclosing shroud and water resistive doom handle assembly to protect the assembly from exposure to the weather while preventing entry of rainwater into a building structure upon the roof of which th... | 12/05/2006 |
| 7140645 | Quick-connecting coupler for hoses, pipes and faucets A coupler for coupling an end of a hose to a mating end of a faucet or another hose. In the first embodiment, the female end of the coupler is mechanically locked in sealing engagement with a male end by simply translation thereof by means of wedges and an outer ret... | 11/28/2006 |
| 7134152 | Adaptable, low cost air gap and flow control A kitchen sink installation includes a plurality of adjacent kitchen sinks having drain tailpieces, a manifold pipe mounted substantially horizontally under the sinks and having a length and a plurality of discrete openings along its length, each of the openings fac... | 11/14/2006 |
| 7136449 | Nuclear reactor plant The invention provides a cooling system which includes at least one and preferably a plurality of coolant chambers arranged around a heat source, typically a nuclear reactor. A coolant inlet pipe enters the or each coolant chamber at a high level and extends downwar... | 11/14/2006 |
| 7131457 | Flow-through pressure regulator including a perforated diaphragm-to-seat spring retainer A flow-through pressure regulator includes a retainer that secures a diaphragm relative to a seat, and includes a cylindrical portion, an axial end portion and an annular portion. The cylindrical portion extends about a longitudinal axis and is fixed with respect to... | 11/07/2006 |
| 7121302 | Air tap assembly An air tap assembly includes a mounting seat, a connecting member, a stop member, and an end cap. Thus, the stop plate of the stop member prevents the air from flowing back into the vent holes of the second pivot portion of the connecting member, so that the air tap... | 10/17/2006 |
| 7111639 | Pressure regulator including a press-fit spring retainer A pressure regulator includes a housing, a divider including a first valve member, and a second valve member. The housing includes an inlet and an outlet, and defines an interior volume. The divider separates the interior volume into first and second chambers, and i... | 09/26/2006 |
| 7108361 | Ink tank An ink tank capable of a stable ink supply to a print head uses a simple valve construction. In one preferred example, an ink path is closed by a lip portion of a valve rubber engaging a flange, and an angle formed by an inner surface of an opening in the lip portio... | 09/19/2006 |
| 7104333 | Dry pipe valve for fire protection sprinkler system A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler sys... | 09/12/2006 |
| 7100637 | Wall hydrant having backflow preventor A water hydrant having a housing with inlet and outlet ends, and a valve assembly having a valve seat and a valve closure element. A valve operating rod is secured to the valve closure element to open and close the inlet end. A backflow preventor check valve mounted... | 09/05/2006 |
| 7093608 | Vacuum pressure breaker and freeze protection for a water flushing system A water flushing system for a pressurized subterranean water distribution system includes an inlet conduit for receiving pressurized water from the subterranean water distribution system; an outlet fluidly connected to the inlet conduit for discharging pressurized w... | 08/22/2006 |
| 7066204 | Multi-port diverter valve assembly with integral detent A multi-port diverter valve assembly with an integral detent feature includes a valve body and a diverter valve cartridge and cap combination wherein the cap includes one or more deflectable fingers positioned so as to “detent” into one or more detent recesses f... | 06/27/2006 |
| 7063104 | Flow-through pressure regulator including a closure member assembly integrated with a housing A flow-through pressure regulator includes a divider, a closure member and a housing. The divider separates a first chamber from a second chamber, and includes a passage that provides fluid communication between the first and second chambers. The closure member move... | 06/20/2006 |
| 7059340 | Valve assembly for pipe disconnectors The invention relates to a valve assembly of a pipe disconnector for separating a service water system which is arranged to be filled or re-filled from a drinking water system, comprising upstream and downstream backflow preventers which both close in the direction ... | 06/13/2006 |
