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 |
| 7654403 | Fuel tank vacuum-relief system A filler neck cap includes a vacuum-relief valve member that moves from a normally closed position to an opened position when exposed to certain vacuum conditions to open a vent aperture and allow atmosphere to flow therethrough. The filler neck cap also includes a ... | 02/02/2010 |
| 7578405 | Fuel cap having a fuel tank pressure regulating valve A fuel cap of the invention has a pressure regulating valve, which includes a positive pressure valve and a negative pressure valve. The positive pressure valve has a positive pressure valve plug and a first spring. The negative pressure valve has a negative pressur... | 08/25/2009 |
| 7281639 | Fuel cap The present invention provides a fuel cap having a high operability while maintaining the air-tightness thereof at a necessary and sufficient level. The closure includes a closure body having a head portion, a trunk portion and an annular trunk surface having stoppe... | 10/16/2007 |
| 7278547 | Cap device A fuel cap has a male threading element which is formed on an outer circumference of a closer of the fuel cap, a female threading element which is formed on an inner wall of a filler neck, and a handle. Rotation of the handle in a closing direction screws the male t... | 10/09/2007 |
| 7275651 | Double-skin, low-profile, environmental, safety tank system A stainless steel, double-skin, industrial, tote tank (100) for transporting dangerous liquids between a dock and an off-shore platform having inner and out tank “skins,” with the opposing walls gapped, except for the flatly engaged, bottom walls. A low-p... | 10/02/2007 |
| 7222742 | Cap structure for a radiator used in vehicle A cap structure for a radiator used in vehicle is disclosed. The cap includes a main cap body, a connector shaft, and a leak-seal seat. The main cap body includes a metallic cap body and a heat-isolation covering body joined together using screw as a body. The conne... | 05/29/2007 |
| 7131430 | Emissions control system for small internal combustion engines An evaporative emissions control system for small internal combustion engines includes a control valve associated with a fuel line and with a vent line which each connect the fuel tank to the carburetor. When the engine is not running, the control valve automaticall... | 11/07/2006 |
| 7104415 | Sealing cap The invention relates to a sealing cap (11), for openings and containers. The valve arrangement (15) comprises an axiallly displaceable valve body (17), which is held in the direction of the container interior by means of a spring (22) ag... | 09/12/2006 |
| 6729271 | Closure cap for a motor vehicle radiator A closure cap for a fixed neck of a container, especially of a motor vehicle radiator. The closure cap comprises a cap inner part provided with a flow connection between the inside of the container and the outside of the container. The cap inner part includes a valv... | 05/04/2004 |
| 6511634 | Reagent package The reagent package includes a container housing section and a container lid that arc sealed together to define one or more inside chambers. An opening in the container lid provides access to a corresponding chamber. The chamber opening is controlled by a... | 01/28/2003 |
| 6375024 | Vacuum apparatus for forming a vacuum in a container A vacuum apparatus for easily forming a vacuum in any bottle, container or the like and for providing a stable sealing. A lower cylindrical member together with a disc member forms a space portion in which a vacuum or an atmospheric pressure is applied, a... | 04/23/2002 |
| 6296135 | Vent-on-demand hatch cover A vent-on-demand hatch cover for closing a hatch opening of a compartment in a railcar, and particularly a hopper car, wherein the car is provided with a coaming that defines the opening. The cover includes a peripheral opening for taking in the outside a... | 10/02/2001 |
| 6043097 | Reagent package The reagent package includes a container housing section and a container lid that are sealed together to define one or more inside chambers. An opening in the container lid provides access to a corresponding chamber. The chamber opening is controlled by a... | 03/28/2000 |
| 5996829 | Fuel tank cap A fuel tank cap with enhanced sealing property of a valve body of a positive pressure valve, which improves the pressure control ability of the fuel tank cap is disclosed. The positive pressure valve controls the pressure in a fuel tank by opening and clo... | 12/07/1999 |
| 5850908 | Pressure sensitive cap closure and valve A closure cap valve apparatus for mounting on the top of a beverage container. A piston valve within the cap is biased towards closure to prevent spillage. Additionally, pressure increase within the container is directed to increase sealing force of seals... | 12/22/1998 |
| 5743424 | Sealable container A sealable container for accommodating semiconductor wafers, which includes a hollow main body having an opening for receiving or removing the semiconductor wafers, a lid member for plugging the opening, a lock for locking and releasing the lid member in ... | 04/28/1998 |
| 5632403 | Pressure cooker A pressure cooker includes a container having an upper annular shoulder. A pot is engaged in the container and has an annular flange extended from the upper portion. A cap has a peripheral portion engaged with the annular flange of the pot. A cover is piv... | 05/27/1997 |
| 5540347 | Vent valve assembly for a fuel tank filler neck cap A vent-valve assembly is provided for use in a filler neck fuel cap. The vent-valve assembly includes a valve housing, a vacuum-relief valve subassembly which is spring-biased within the housing to channel ambient air and fuel vapor through the valve hous... | 07/30/1996 |
| 5279439 | Fuel cap for a pressured fuel tank A fuel cap is provided to improve sealing characteristics of a pressurized fuel tank. When the inner pressure P of a fuel tank is a negative pressure less than a predetermined regulation negative pressure Pr which does not need to be controlled, a valve 1... | 01/18/1994 |
| 5248052 | Apparatus for automatically releasing the super-atmospheric pressure of an engine cooling system in response to turning off the engine and preventing the buildup of pressure while the engine is off An apparatus for releasing superatmospheric pressure in an engine cooling system when the engine is turned off and maintaining the cooling system at atmospheric pressure whenever the engine is not running is disclosed. The apparatus comprises a radiator c... | 09/28/1993 |
| 5242072 | Vented fuel tank cap A cap for a fill pipe of a fluid container, such as a gas tank, is provided. It has a vent hole which is normally held unsealed by the weight of a ball which impinges against and thereby tilts a spring loaded pin carrying an O-ring. When the cap tips away... | 09/07/1993 |
| 5240027 | Combination relief vent and closure apparatus Apparatus which can be installed over an opening on a container and can provide relief of excessive pressure conditions and excessive vacuum conditions in the container and provide rapid temperature actuated pressure relief for the container in the event ... | 08/31/1993 |
| 4961449 | Reservoir cap The invention relates to a cap for a hydraulic fluid reservoir for a brake circuit of a vehicle. According to the invention, it has a filling aperture (24) intended to be closed by a valve member (38) through the action of a spring (36) mounted in the cap... | 10/09/1990 |
| 4953583 | Tank pressure control valve An apparatus is provided for controlling discharge of fuel vapors from a fuel tank during refueling. The apparatus includes a conduit for conducting fuel vapor between the fuel tank and a first destination such as a vapor treatment canister situated outsi... | 09/04/1990 |
| 4892216 | Fuel filler cap with overpressure relief An improved fuel filler cap for fuel tanks of motor vehicles is disclosed. A cap body member is attached by an actuator rod to an anchor disc, which mates with a tank adapter. When an actuator handle is rotated from a free to a locked position, the anchor... | 01/09/1990 |
| 4666056 | Cap with valve A cap with valve of the invention is provided with a negative pressure valve at a fluid entering flow path in a closure installed to an aperture of a container, so that fluid flows into the container from outside when pressure in the container is decrease... | 05/19/1987 |
| 4634017 | Radiator flushing device A radiator flushing apparatus (10) comprising a modified radiator cap unit (11), a hose coupling unit (12), and a pressure relief unit (13) for establishing a normally fluid tight connection between a pressurized water hose (50) and an automobile radiator... | 01/06/1987 |
| 4540103 | Cap with a valve unit A cap is provided with a valve adapted to release negative pressure in the interior of a storage tank. Upon assembly of this negative pressure release valve, while a coil spring bears against the underside of a retainer plate, the retainer plate with a va... | 09/10/1985 |
| 4392583 | Cap and valve assembly A cap and valve assembly for a liquid reservoir has a cover in which is disposed a flexible valve member. The flexible valve member has an annular sealing portion engaging the reservoir and a diaphragm portion. An air chamber is formed between the diaphra... | 07/12/1983 |
| 4366669 | Tank closure apparatus with safety feature A tank closure apparatus comprising a housing adapted to attach to a tank. A filler-cap assembly seals a liquid filling port of the housing. Passageways carry liquid from this port to openings on a surface of the housing within the tank. A means, responsi... | 01/04/1983 |
| 4219045 | Sea water pressure regulator valve A sea water pressure regulator valve is provided for a fuel tank, the valve ncluding an elongated body having a longitudinal cylindrical hole which opens into the fuel tank and a perpendicular passageway which is adapted to open the cylindrical hole to sea... | 08/26/1980 |
| 4091955 | Plastic filler neck cap A molded plastic fuel tank filler neck cap includes a closure portion having an axially inner end for engaging and closing the filler neck, and an axially outer end. The cap further includes a shell providing a hand-grip cover, the shell and the closure a... | 05/30/1978 |
| 4033091 | Pressurizing closure apparatus This disclosure pertains to a carbonated beverage container closure apparatus adapted to be removably secured to the container's mouth. A valve is biased to close an opening in the closure having the closing biased forces reinforced by the pressurized gas... | 07/05/1977 |
