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Patent No. 5971829

Motorized Ice Cream Cone

A Receptacle for supporting, rotating and sculpting a portion of ice cream or similarly malleable food while it is being consumed.

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Class 251/94 - Fluid pressure biased latch


Subclass of Class 251 - Valves and valve actuation
Definition: Devices wherein the latch means is fluid pressure biased.
No. of patents: 41
Last issue date: 04/28/2009


1    
NumberTitleIssue Date
7523916Fail-safe gate valve
A gate valve has a body with a gate chamber intersected by a flow passage and a stem chamber extending from the gate chamber. A gate is carried in the gate chamber. A stem, when rotated, causes linear movement of the gate between open and closed positions. A neck on...
04/28/2009
6972653Displacement control device
A displacement control device (1) is adapted to move a member (23) relative to a body (7). The displacement control device includes a drive means (2, 3) and an emergency actuator(8) arranged mechanically in series with the member. ...
12/06/2005
6296008Switchover valve
A switchover valve for switching over from one supply of pressure fluid to another supply thereof in response to failing or failure of the one supply. The valve has a valve body having two inlets for connection thereto of the respective pressure fluid sup...
10/02/2001
6206338Fail as-is hydraulic actuator
A hydraulic actuator for a valve that fails as-is in the event of control line failure. The actuator has a housing carrying an actuator piston for actuating the valve open or closed. An elongate gripper shaft extends upward from the actuator piston. A col...
03/27/2001
6202671Control valve for cryogenic liquid propellant
A valve for controlling flow of cryogenic liquid propellant in a rocket engine comprises a double acting piston-cylinder unit having a first position in which the valve is closed and a second position in which the valve is open, a locking device being eng...
03/20/2001
6131878Pneumatic linear drive for cryogenic control valves
A control valve for controlling flow of fuel from a fuel tank to a rocket engine having a valve body longitudinally displaceable between open and closed positions of the control valve, a piston rod secured in the valve body, and a piston secured to the pi...
10/17/2000
6113065Method and arrangement for low-pressure locking of a gas-filled device
A locking plate attached to a rotatable steering shaft used to change operational settings of a low-pressure locking device of a gas-filled device includes a peripheral locking nose and peripheral adjustment noses on either side thereof, slide surfaces ex...
09/05/2000
6058957Water saver fire hydrant
Water saver fire hydrants save water by delivering their initial flow from a pilot valve to a collection of holes in the gasket faces of their hose and pumper outlet nozzles. These holes are normally closed off by the gaskets in caps and hoses, and the wa...
05/09/2000
5762098Fluid mixing device, particularly for industrial inks or paints
An automatic fluid mixing device wherein a cylindrical supporting structure supports a first number of valves angularly spaced along a first circumference, and a second number of valves angularly spaced along a second circumference concentric with and ins...
06/09/1998
5649516Device for controlling the temperature of supercharging air for a heat engine
A pivoting flap valve, controlled by a pneumatic main actuator or actuating jack through an engagement means or connecting piece and a lever coupled to the valve, controls the changeover between a state in which supercharging air is delivered to the engin...
07/22/1997
5647573High pressure fluid valve assembly
To resist mechanical forces tending to unseat a fluid valve applied to seal against a high fluid pressure, a fluid valve assembly is equipped with a valve block that, in response to the high fluid pressure, causes a locking member to be forcibly wedged in...
07/15/1997
5632294Locking ball valve for a fluid conduit
A locking valve for controlling fluid flow within a conduit has a spring-biased detent in fluid communication with a fluid source. A movable valve structure prevents fluid flow through the conduit in a closed position and enables fluid flow through the co...
05/27/1997
5622199Locking apparatus and method for hydraulic valve assembly
A hydraulic valve assembly for use with a fluid motor has a control device, e.g., a valve spool, mounted for movement between a neutral position for motor disabling and an output position for motor operation. The improvement comprises a locking surface on...
04/22/1997
5474103Safety guard for orifice fitting device
A safety guard or lockout device (22) for a dual chamber orifice fitting device (1) having a removable orifice plate (4). In a normal position when the upper and lower chambers (8, 9) are equal in pressure, the guard (50) of the safety guard device (22) i...
12/12/1995
5413310Valve arrangement
Valve, in particular large ball valve for use in oil and gas installations, of the kind comprising a valve member (2) having a through flow passage (6), a movable seat or seal holder (8, 9) and means (11, 12) for moving the holder in directions towards an...
05/09/1995
5325895Device for filling and closing pressurized-steam containers
Rotatably engaged to the filter (4, 104) of a pressurized-steam container (5, 105) is a closing member (2, 102) provided at the upper part thereof with an operating cap (6, 108). Through 180° rotations of the closing member (2, 102) the fluid communicati...
07/05/1994
5295504Device for controlling discharge from a pneumatic enclosure under pressure, in particular for rapid and controlled deflation of a tire
A device for controlling discharge from a pneumatic enclosure under pressure, in particular for controlling rapid deflation of a tire to a predetermined pressure value after the device has been assembled to a valve fitted to the enclosure, the device comp...
03/22/1994
5190106Well injection valve retrievable choke
An injection valve for use in a well having a valve closure element positioned below a valve seat moving between an open position to a closed position on the valve seat for blocking off upward flow through the bore, but allowing downward flow. A flow tube...
03/02/1993
5026021Flush control assembly for pressure flush valves
A flush control assembly for delaying the flush cycle of pressure flush valves for use on plumbing fixtures. The flush control assembly attaches to, and becomes an integral working part of the flush valve and contains a delaying means which is actuated by...
06/25/1991
4903937Isolation valve for vacuum and non-vacuum application
An isolation valve includes a housing having a port and a seal plate for sealing the port. The seal plate is linked to a shaft which carries a guide frame. To close the port, a drive mechanism drives the shaft linearly in one direction. The seal plate fir...
02/27/1990
4700925Pressure medium operated servomotor arrangement
The servomotor arrangement has a moving system comprising a piston movable in a cylinder. A latching or retaining member movable transversely of the direction of movement of the system is provided to retain or latch the moving system. The latching member ...
10/20/1987
4653522Ground hydrant and method for operating same
The ground hydrant of the present invention includes an outlet nozzle above ground and a drain water collection cylinder located below the frost line of the ground. When the hydrant is shut off, the residual water in the nozzle drains into the ground wate...
03/31/1987
4652059Parking brake valve for a hydraulic external force brake system
A parking brake valve cooperates with a spring loaded cylinder which releases a parking brake when pressurized. The valve includes a shaft with an eccentric section, and this shaft may be turned by an actuating lever from a position in which the brake is ...
03/24/1987
4603833Inlet valve for breathing apparatus second stage regulators
An inlet valve for use with a breathing regulator second stage which is connectable to a source of breathable gas. The inlet valve containing a flow-closing valve in the passages and being connectable in the gas circuit to the second stage. Extending exte...
08/05/1986
4565349Fail safe hydraulic piloted pressure reducing and regulating valve
A hydraulic piloted pressure reducing and regulating valve which is fail safe for holding the valve at the last selected operating pressure in the event of the loss of control signals. A pressure regulating valve having a body and a control piston therein...
01/21/1986
4530376Pilot valve including a hydraulically actuated detent
A pilot valve having a universally tiltable joy stick further includes a cam attached to said joy stick and movable therewith. A plunger is selectively movable into engagement with the cam for latching the joy stick in a selected one position. Fluid is su...
07/23/1985
4526301Security system for storage tanks
A security system for preventing theft of the liquid contents of storage tanks, such as those used for storing crude oil. The security system includes a first selectively locked access way, a second locked access way and a discharge valve security control...
07/02/1985
4522370Valve
A subsurface valve which functions as a lubricator valve and a retainer valve in response to changes in control pressure which may be pumped through to kill a well and which is provided with a lock means for locking the valve in closed position....
06/11/1985
4519571Fluid operated, axially reciprocating actuator
There is disclosed a blowout preventer having rams each of which is moved between opened and closed positions by a fluid-operated actuator having a rod adapted to be axially reciprocated by piston means within a cylinder and extending from the cylinder fo...
05/28/1985
4483360Actuator mechanism for double-block and vent valve
A double-block and vent valve having an improved actuator mechanism to allow one part of a composite valve member to be lifted separately from another. The actuator mechanism overlies the valve housing and is connected to the two valve member parts via co...
11/20/1984
4437809Turning gear interlock
Rotor turning gears for turbines selectively engage with and disengage from rotor ring gears to provide for rotation of the turbine rotor when it would otherwise cease rotation. This is to equalize the effect of thermal stresses on the rotor as it cools d...
03/20/1984
4378931Valve and actuator therefor
A valve and particularly a safety valve for use in controlling flow from a well in which an external motor is utilized to shift the actuator of a valve such as a ball valve. The reciprocating rod of the motor is protected by resilient means between the cr...
04/05/1983
4306586Three way valve
A three way relay valve has a body defining a bore and first and second chambers, a supply port in fluid communication with the first chamber, and valve and exhaust ports in fluid communication with the second chamber. A plunger is moveably disposed withi...
12/22/1981
4215748Lockout for a well injection valve
A lockout for use with a fluid injection valve which injects fluids in a tubing string of a well. The lockout, when actuated, holds the injection valve open for allowing passage of well tools therethrough; but when deactuated, allows the injection valve t...
08/05/1980
4205820Control valves
An installation control valve preferably for use in a fire fighting installation has a pivotal valve disc with an axis spindle to which is connected a lever. A lever retaining mechanism co-operates with the lever and is releasably held to resist lever and...
06/03/1980
4103864Hydraulic positioner for valves
A positioner having a differential piston which is hydraulically locked by the oil pressure of a tripout valve and which in turn cocks a closing and an opening spring against each other, in which, after the tripout oil pressure falls, the closing spring i...
08/01/1978
4083382Regulating valve with hydraulic detent
A regulating valve for controlling the flow of fluid from a source to a fluid operated clutch and brake as well as auxiliary devices is disclosed herein. The regulating valve incorporates a hydraulic detent which locks the valve spool in a clutch engaged ...
04/11/1978
4052995Blowout preventer ram lock and locking method
A new and improved ram lock for blowout preventer rams which permits locking of the ram at multiple and adjustable positions to compensate for wear on sealing elements of blowout preventer rams and increase sealing action of the ram without requiring sepa...
10/11/1977
4033379Pneumatic valve interlock system
A fluid-actuated interlock system for automatically controlling a plurality of remotely located valve assemblies. A fluid switch and a locking device are disposed for cooperation with each valve operator. The fluid switches are connected to a supply line ...
07/05/1977
3972398Parking brake and transmission valve interlock
A parking brake interlock system includes detent means responsive to a loss of pressure in the brake-releasing hydraulic pressure system for causing the detent mechanism to engage and resist movement of a transmission control member of the vehicle transmi...
08/03/1976
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