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 |
| 8123194 | On-off valve and process apparatus employing the on-off valve A disclosed on-off valve includes a valve body having two openings that may place a process chamber and an evacuation apparatus in pressure communication with each other; a closure element located inside the valve body and adapted to close one of the two openings; a... | 02/28/2012 |
| 8123195 | Pressure control butterfly valve with opening/closing mechanism A pressure control butterfly valve includes a valve disc rotatable in a vertical direction relative to a flow passage in a body, a seat ring reciprocating in a direction of the flow passage to allow a valve seat seal part to abut on and separate from the valve disc,... | 02/28/2012 |
| 7347406 | Shut-off valve and method of shutting off opening of vacuum chamber A shut-off valve disposed between openings formed to a vacuum chamber includes a casing, a valve body disposed inside the casing and having a shaft rotating around a central axis of the valve body, a drive unit for driving the valve body to rotate the shaft, and an ... | 03/25/2008 |
| 7004451 | Ball cock A ball cock has a housing that includes at least two housing parts. Each part has a flow-through channel as a flow-through path. The ball cock also includes a ball-shaped shut-off element having a passage bore as a flow path for optionally connecting the flow-throug... | 02/28/2006 |
| 6994100 | Metering valve A metering valve for metering dry powder material such as cement. The interior of the valve housing is expanded outward beginning at the sealing surface or lip located adjacent to the inlet opening, thereby forming an enlarged gap between the valve sleeve and housin... | 02/07/2006 |
| 6983925 | Rotary barrel gate valve A rotary barrel gate valve includes a body and at least one passage through the body defining an inlet and an outlet. There is a first actuator for rotating the body, a second actuator for translating the body, and a sealing portion on the body which seals the body ... | 01/10/2006 |
| 6983922 | Piloted directional control valve An electrically powered rotary solenoid drives a hydraulic pilot valve to actuate a hydraulic main valve. The pilot valve includes a seal carrier rotatable with respect to a seal plate. A carrier supply port and a plate supply port are centered about an axis of rota... | 01/10/2006 |
| 6938876 | Ball valve with retractable seals and method of replacement thereof A ball value has a valve body defining a cavity, a ball closing component disposed within the cavity through a cavity opening, a cover, and seal assemblies having seating rings with seals disposed engaging both sides of the ball closing component. The seating rings ... | 09/06/2005 |
| 6789565 | Metering valve A metering valve for metering dry powder material such as cement. The interior of the valve housing is expanded outward beginning at the sealing surface or lip located adjacent to the inlet opening, thereby forming an enlarged gap between the valve sleeve and housin... | 09/14/2004 |
| 6425570 | Ball valve having retractable sealing member A ball valve having an upstream seat (92) with the seat actuated by outside pressure (14, 16). Retraction members (100, 102) continuously urge seat (92) to a retracted position out of sealing engagement with the ball. A sealing member (104) fits loosely w... | 07/30/2002 |
| 6257548 | Valve construction The invention relates to a valve having a housing in which there is a passage having at least two spaced ports. A slide is accommodated in the passage for to and fro movements between at least two positions in one of which at least one of the ports is ope... | 07/10/2001 |
| 6206029 | Valve of vacuum apparatus A valve of a vacuum apparatus with a valve seat body having left and right communicating openings opposed to the two vacuum chambers, respectively, a valve body movable in the axial direction of the valve seat body and rotatable around the center axis the... | 03/27/2001 |
| 6042083 | Butterfly valve A butterfly valve is disclosed, wherein a pair of rotating shafts for rotating a disk. One of the shafts is used to rotate the disk by 90 degree, the other is used to linearly displace the disk, thereby tightly depressing the disk on the valve seat to com... | 03/28/2000 |
| 5868376 | Methods and apparatus for controlling flow of material past a flap valve A proportioning mechanism for controlling a gravitational discharge of flowable material through a passage formed of a sealing material. The mechanism includes a rotatable flap valve mounted in the passage for movement in a first range of movement while i... | 02/09/1999 |
| 5616829 | Abnormality detection/suppression system for a valve apparatus Provision of an abnormality detection and suppression system for a valve apparatus, which is capable of detecting abnormal states such as leakage through valve seats or a gland/packing assembly and coping with the abnormality while ensuring protection for... | 04/01/1997 |
| 5551666 | Butterfly flap valve Butterfly flap valve (10) comprising a valve housing (12) with an axial flow aperture (14), a flap shaft (16) that projects out of the valve housing (12), crosses the flow aperture (14) substantially diametrically and can be operated by means of a drive m... | 09/03/1996 |
| 5417405 | Obturator for ball valve An improved valve sealing arrangement where a sealing surface on the valve obturator presses against a compatibly arranged valve seat circumscribing a flow path to close the flow path, or alternately, the valve obturator having a through bore rotatable in... | 05/23/1995 |
| 5330156 | Seal arrangement for valves A sealing arrangement for a valve or shaft is disclosed which is designed to respond to movements of a rotatable element in a particular manner and to increase sealing pressure with increasing fluid pressure. The seal undergoes a radial compressive type m... | 07/19/1994 |
| 5322261 | Arrangement in closing valves A shutoff or closing valve, especially a ball valve, comprises a valve body (2) having at least one annular sealing surface formed for sealing engagement against a seal (5) carried by an axially displaceably supported seat ring (3). The seat ring (3) or e... | 06/21/1994 |
| 5205535 | Expanding gate valve assembly An expanding gate valve assembly which includes a gate, a stem for actuating the gate, a segment mounted on one side of the gate, or in an alternate, bidirectional embodiment, two segments with one segment movably mounted on each opposite side of the gate... | 04/27/1993 |
| 5188144 | Plug valve A plug valve having a body with an inlet, an outlet and a plug-receiving opening which intersects the inlet and outlet. A plug is mounted in the opening and has an outer wall and an orifice extending therethrough. The plug is movable from an operative pos... | 02/23/1993 |
| 5154395 | Ball valve and actuator for operating valves and the like In one aspect the invention relates to a ball valve of the type comprising a ball member (83, 85) provided with two axially displaceable sleeves (66A, 66B) adapted to be displaced outwards to sealing engagement against seats provided in the surrounding va... | 10/13/1992 |
| 5117858 | Top entry ball valves with cam adjustable seats A top entry ball valve comprises a housing having an interior cavity sufficiently large to receive a conventional ball and conventional seat rings through an opening in the housing. After the ball/seat package has been inserted into the cavity, a cam arra... | 06/02/1992 |
| 5074525 | Hygienic stop valve A stop valve is disclosed which includes a means for venting fluid to the exterior of the valve housing if the valve is not properly adjusted, thereby providing a readily detectable visual indication that the valve needs to be readjusted or retightened. I... | 12/24/1991 |
| 5011115 | Self supporting plug for a double block and bleed plug valve Self supporting, non-lubricated retractable seal double block and bleed plug valve wherein an improved plug configuration provides direct bearing surface support for the plug along at least a portion of the radial surface of the plug. The remaining radial... | 04/30/1991 |
| 4989641 | Rotary selector valve A multi-port valve internally supports a rotatable trunnion having an elbow passage between a nozzle portion of the trunnion and a lower end outlet that communicates with a test port of the valve body. The outer end of the nozzle has an axially reciprocab... | 02/05/1991 |
| 4984601 | Unit apt to act upon the flow Means acting upon the flow, such as pumps or valves are used inter alia in the handling of liquid foodstuffs, e.g. milk, in packing machines. Since the demands on hygiene in this context are very high, especially if the packing machine operates with foods... | 01/15/1991 |
| 4921015 | Rotary vacuum valve Indexing rotary vacuum valve in which second stage vacuum at torr pi is applied through aligned ports of one valve member juxtaposed to another, originating a force tending to bring the two tightly together, but wet lubrication is not needed si... | 05/01/1990 |
| 4844410 | Adjustable seat assembly for a valve There is provided a seat assembly adapted to be received in a spool bore of a valve having a fluid controlling member for controlling the flow of fluid through the valve, with the spool bore having a threaded interior portion. The seat assembly includes a... | 07/04/1989 |
| 4836250 | Device for closing a pipe branch A device for closing a pipe branch, especially for closing either orifice of a Y-shaped distributor connection, which is to close the inflow of the unoccupied flow-off in a gastight and watertight manner, is proposed. At the same time, there will be the p... | 06/06/1989 |
| 4802651 | Ball plug valve A shut-off or flow control valve comprises a valve body including a cylindrical cavity with a hemispherical end, which rotatably receives a cylindrical plug with a hemispherical end in a close tolerance, wherein a flow passage with a central axis generall... | 02/07/1989 |
| 4770202 | Valves providing transfer ports A valve body 10 supports a rotary valve member 20 having a transfer port 22. Sealing between a port 17 of the valve and the member 20 is achieved by a sleeve 30 movable towards and away from the member 20. In a valve closed position seal means in a flat e... | 09/13/1988 |
| 4727901 | Ball valve A ball valve device for subsea applications, capable of being dismantled for inspection and maintenance without disrupting normal operations of the pipeline and without causing leakage into or out of the pipeline is disclosed. The ball arrangement of the ... | 03/01/1988 |
| 4702457 | Ball plug valve This invention relates to the ball plug valves comprising a ball plug of a cylindrical geometry with a hemispherical end rotatably engaging a matching cylindrical cavity with a closed hemispherical end formed within the valve body in a close tolerance whe... | 10/27/1987 |
| 4623119 | Plug valve An improved plug-type valve of the type having a plug connected to slips wherein opening and closing the valve involves both vertical and rotational motion of the plug, the novel features of the invention residing in geometrical characteristics of plug, s... | 11/18/1986 |
| 4597560 | Half-turn valve A plug valve assembly employs a stem having a threaded end, and a shiftable locking key to alternatively interengage the plug with either the stem or the bonnet. When the plug is locked to the bonnet by the key, the threaded part of the shaft will initial... | 07/01/1986 |
| 4580762 | Closure device for a liquid-carrying pipe The device comprises a body (1) provided with two coaxial circular openings (3, 4) for connecting two sections of pipe, wherein each opening has an oblique seat (5, 6) receiving a wedge formed of two counter-seats (9, 10), a spherical ball (11) and a cage... | 04/08/1986 |
| 4562993 | Dual action handle for floating disc valve and ball-plug valve This invention relates to a valve handle having the dual function of rotating the valve stem for opening and closing of the valve and of moving the valve stem in the axial direction over a small distance for relieving and establishing the seating pressure... | 01/07/1986 |
| 4529005 | Fluid tap A fluid tap includes a first cylinder having a first axial hole adapted to be communicating with a fluid source and a first radial through hole in communication with the first axial hole for discharging therefrom the fluid coming from the fluid source and... | 07/16/1985 |
| 4497467 | Plug valve with hydraulically actuated seals A rotary plug valve has hydraulically actuated seals for sealing between a valve body and a rotatable valve plug. The valve plug is rotated to open or close the valve. A valve handle for turning the plug can be rotatably uncoupled from the valve plug when... | 02/05/1985 |
