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Patent No. 6295668

Maternity Beach Chair

A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.

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Class 251/55 - With choke by-pass or relief means


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter in which a dashpot is filled with air drawn
No. of patents: 15
Last issue date: 02/26/2008


NumberTitleIssue Date
7334272Flushing controlling mechanism
A flushing controlling mechanism includes a toilet bowl having a trap, a room, a hollow cylinder, a first piston, an inlet, an outlet and a first opening. The room selectively communicates with the trap via a first waste pipe, and a second waste pipe alternately com...
02/26/2008
6557822Dynamically stable flow amplifying poppet valve
A flow amplifying poppet valve is useful in hydraulic circuits requiring low leakage when in a loaded condition. Undesirable pressure fluctuations effect the stability of the poppet. Tilting of the poppet valve within the bore increases friction that degr...
05/06/2003
6308348Continuous water level controller
A continuous water level controller includes a base member, a sleeve mounted in the base member, a piston assembly and an actuating linkage. A stopper is attached to one end of the shaft in the base member to close the outlet of the base member. A piston ...
10/30/2001
5551664Pilot controlled valve for motor vehicle tank systems
A pilot controlled valve for motor vehicle tank systems whose valve body consists of two parts (10, 12). In the first housing part (10) an inlet duct (14), an outlet duct (16), an annular valve seat (20) and an annular duct (18) surrounding the latter are...
09/03/1996
4892236Dispensing measures
A measure for use in dispensing drinks and other liquids which are of relatively high viscosity, such as cream based liqueurs, having a measuring chamber with an entry port and an exit port, an internal operating standard and an actuator to move the inter...
01/09/1990
4716930Pneumatic time delay valve
A pneumatic time delay valve primarily adapted for use in the ejection system of electronic or optical countermeasure devices and the like wherein an explosive squib is employed to create a momentary charge of high pressure gas used to depress the firing ...
01/05/1988
4603710Non-return valve
The non-return valve comprises a housing provided with an inlet connection, a coaxial installation opening, and an outlet connection. An insert is secured in the installation opening to define a chamber with a cover on the valve. A movable valve body mean...
08/05/1986
4558719Cyclically-operable valve particularly for irrigation
A cyclically-operable valve comprises a timer including a reciprocatable member driven by the pressurized fluid through forward strokes, return means for driving the member through return strokes, and a dashpot device coupled to the member and retarding i...
12/17/1985
4529004Pneumatic timing valves
This invention describes a pneumatic timing valve, in which one end of a plunger projects into a chamber in constant communication with the atmosphere and is displaced by fluid means into its operating position against a return spring force, an incoming p...
07/16/1985
4484726Pulsation limiter for manually actuated hydraulic valve
A pulsation limiter for a manually actuated hydraulic valve includes a spring biased, motion retarding plunger in an auxiliary bore within the valve housing and having a helical groove disposed on its periphery abuts against the input sleeve during the in...
11/27/1984
4146593Diaphragm means for driving a secondary throttle valve in a two-barrel carburetor
A diaphragm means for driving a secondary throttle valve in a two-barrel carburetor of the type wherein the secondary throttle valve is opened by a diaphragm means actuated by the venturi vacuum when the primary throttle valve is opened, including an expa...
03/27/1979
4041838Valve arrangements for reciprocating piston machines
A valve arrangement for controlling the flow of fluid from an inlet passage to the cylinder of a reciprocating piston engine wherein the valve is opened by a cam against the resistance of a valve closing spring and compressed gas above a plunger connected...
08/16/1977
4022179Vacuum controlled throttle positioner and dashpot
An integral device for controlling the rate of throttle closure and for preventing after run of an internal combustion engine is provided which utilizes a pair of diaphragm assemblies for accomplishing both functional operations. The device includes a das...
05/10/1977
3971356Solenoid-dashpot
A unitary device for controlling the rate of throttle closure and for preventing after run of an internal combustion engine is provided with simplified structure, the structure using a single shaft assembly for both functional operations. The shaft assemb...
07/27/1976
3969041Shut-off valve for automotive fuel flow
A shut-off valve for the automotive fuel system is operable to shut off the fuel flow whenever a positive pressure exists in the fuel line between the fuel tank and the shut-off valve. The shut-off valve may be employed in combination with a fuel pump or ...
07/13/1976
 
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