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...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!

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Class 251/255 - Non-reciprocating


Subclass of Class 251 - Valves and valve actuation
Definition: Devices in which the external means includes a handle which
No. of patents: 9
Last issue date: 07/12/2005


NumberTitleIssue Date
6915632Actuator for a valve, in particular a turbine valve
An actuator includes a valve spindle, for adjustment of an opening position for a valve and a drive piece for the valve spindle. The drive piece is connected to the valve spindle, by a storage device, which may be pre-tensioned to a particular pre-tensioned value du...
07/12/2005
6902379Displacement control valve of variable displacement compressor, compressors including such valves, and methods for manufacturing such compressors
A variable displacement compressor and a displacement control valve for use in such compressors, varies the displacement of the compressor by closing or opening a control path between a discharge chamber or a suction chamber and a crank chamber. The valve includes a...
06/07/2005
6769665Electric valve actuator with failsafe apparatus
An electric valve actuator with a failsafe device for a rotary type valve that is coupled to a drive shaft screw by means of a clutch. A cam cylinder is secured to the drive shaft screw and is also connected to the stem of the valve. A cam follower is slidably mount...
08/03/2004
6308730Gas stream monitor
A gas stream monitor shall be provided that facilitates the adjustment of the reseat flow. The gas stream monitor consists of a gas-tight casing whose interior is equipped with a seat for a reseat body that is movable inside the casing and is kept in open...
10/30/2001
6253579Valve hamper assembly
A valve hamper assembly for a glassware machine having a camming surface and a movable follower surface engaging the camming surface. A movable valve is operatively connected to the follower surface. A movement device is operatively connected to the follo...
07/03/2001
5411239Valve actuator
A control valve having a pneumatic actuator and positioner to move the stem of a globe-type valve. The actuator has a spring-opposed piston that moves a chassis including a cam with an inclined plane. The inclination of the cam plane can be varied to prec...
05/02/1995
5103857Self closing valve assembly
A self closing valve assembly is disclosed. A retainer member provides support for a spring for biasing the valve actuating cam members as well as providing a valve seat. The component parts are housed in a cartridge for easy placement in a faucet as well...
04/14/1992
4343456Plastic control valve
A control valve with a three part, all plastic housing having an access opening through which a slide extends for operating the plastic valve element toward and away from the valve seat, the plastic valve element having an integrally molded plastic diaphr...
08/10/1982
4239186Trip valve construction
A trip valve including a valve body provided with a valve seat and further including a movable trip lever having a cam defining a first support surface thereof. A valve stem is movably disposed within the valve body and includes a valve attached to one en...
12/16/1980
 
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