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Class 137/140 - With strainer, filter, separator or sediment trap


Subclass of Class 137 - Fluid handling
Definition: Apparatus combined with a strainer, filter, separator or
No. of patents: 34
Last issue date: 07/25/2006


NumberTitleIssue Date
7080686Devices and methods for extraction, transportation and/or release of material
Provided are methods and apparatuses for extracting, transporting and/or releasing various kinds of liquid and semi-liquid materials. The materials may have very high viscosity and may include solids. Generally speaking, the apparatus includes a container, a gateway...
07/25/2006
7025878Fluid filter
A substantially clog-resistant self-supporting fluid filter 100 for attachment to an open end of flow tube 118. Filter 100 comprises a substantially cylindrically shaped grid or fluid intake portion 102 having first end 112 and a s...
04/11/2006
7001510Siphon hose with gallon counter
A siphon to be used when removing water from a personal aquarium for cleaning purposes. The water passes through propellers or flaps of a present friction, which monitor the volume flowing out of the aquarium. The amount of water is displayed on an exterior gauge so...
02/21/2006
6938437Cylindrical seal for refrigerant tube connector
A refrigerant connection includes a ferrule positioned within a threaded nut. The threaded nut is received on a connector body. A seal is positioned between the ferrule and the connector body. As the nut is turned on the connector body, the ferrule squeezes the seal...
09/06/2005
6824696Oil from water separator
An oil from water separator has an oil disengagement chamber adapted to receive an oil and water mixture and retain it for a sufficient time in a relatively undisturbed state so that oil in the mixture floats to the top of the mixture. This results in a substantiall...
11/30/2004
6640502Ceiling leak capture and drainage system
A fluid leak capture and drainage system for ceiling leaks which includes a ceiling panel support grid and a plurality of ceiling panels mounted thereon is disclosed. The ceiling panel has a raised platform located in the center of the panel and a wall ex...
11/04/2003
6579457Liquid transport member for high flux rates between a port region and an opening
The present invention is a liquid transport member with significantly improved liquid handling capability, which has at least one bulk region and a wall region that completely circumscribes said bulk region, and which comprises a membrane port region and ...
06/17/2003
6440303Fluid filter
A substantially clog-resistant self-supporting fluid filter for attachment to a discharge tube or the like, comprising a cylindrically shaped grid open at both ends, having a first plurality of substantially parallel ribs crossed by and fastened to a seco...
08/27/2002
6178984Self-priming siphon, in particular for irrigation
A self-priming siphon has an inverted U-shaped tube filled with a hydrophilic material where one end of the tube is connected to a smaller diameter tube such that when the other end of the tube is immersed in a liquid, capillary action causes the fluid to...
01/30/2001
6056886Water level and flow control device and skimmer box provided with this device
A system for controlling a flow of water out of a container in a manner to prevent the generation of noise as an incident to the outflow and to permit adjustment of the water level in the container, the container being a component of apparatus for maintai...
05/02/2000
5858234Suction strainer for use with a centrifugal pump
A two piece suction strainer for use with a centrifugal pump is provided. The strainer includes a cage having the form of a basket and a cover having an integral hub formed as a hose shank fitting. The cover is securely placed in the open end of the cage ...
01/12/1999
5845676Ballast tank device
A ring float floating in the surface of the ballast liquid is arranged around a pump housing with suction port submerged in a ballast tank. The ring float runs around the pump housing and will form a barrier which prevents a contaminating layer on the liq...
12/08/1998
5785085Closed feeding system for liquid fuel
A closed feeding system for liquid fuel includes a flexible tube (1) extending from a reservoir (7) to a strainer housing (8) for differential pressure feeding of fuel, provided with pump assembly (3), in which system there is disposed a second, flexible ...
07/28/1998
5738137Apparatus for creating surges in an aquarium
An apparatus for creating surges in an aquarium uses a pump to move water from the aquarium into an external tank. A siphon tube periodically creates surges by draining water from the tank back into the aquarium. The siphon tube has an inlet at a predeter...
04/14/1998
5695654Apparatus and method for draining, cleaning, and filling an aquarium
Apparatus for use in draining, cleaning and refilling an aquarium tank including an elongated flexible hose having first and second opposite ends, a tube including an upper distal end for connection to the first end of the flexible hose, and a lower dista...
12/09/1997
5640991Siphon freeze drain valve for underground irrigation systems
Siphon freeze drain valve for an underground water sprinkling system including a line operating under water pressure, the drain valve being a U-shaped tube, one end of which is passed through a hole in the top of the line, the other end of which is outsid...
06/24/1997
5364034Controlled low volume irrigation system
The low flow irrigation system can be used for batch or continuous time-dependent watering. It takes the form of a reservoir tank with a screen basket which filters out large particles from the water coming into the system. A float valve shuts off and tur...
11/15/1994
5293894Automatic prime and flush siphon condensate pump system
An automatic prime and flush siphon condensate pump system (100) is provided for displacing condensate water accumulated from an air conditioning evaporator to a drain, such as the drain of a basin (50). Initially, the pump assembly (2) displaces the cond...
03/15/1994
5269338Aquarium siphon apparatus
A siphon structure includes a hose having an inlet housing whose cylindrical side wall includes a lower portion formed of a mesh web, with the mesh web having openings and the openings including further intersecting filaments therebetween to minimize siph...
12/14/1993
5063959Method and apparatus for free-standing water removal from roof and siphon head therefore
A siphon head for siphoning smooth or rough textured roof surfaces which is preferably comprised of a soft pliable elastomeric material such as rubber. The head includes a relatively flat foot flange adapted to rest flatwise on a roof to be drained. The f...
11/12/1991
5006264Apparatuses and methods for liquid-undissolved-solids separation
Liquid purification apparatuses and methods; an open filtration, treatment and siphon apparatus and process; a porous mass formation apparatus and process; and a liquid-solid separation apparatus and a process using a siphon member. In one embodiment, a l...
04/09/1991
5002657Separator for oil well production fluids
A separator for oil well production fluids including oil, water and gases in which the separator includes a water siphon system having a vertically adjustable spill point for the discharge of water to a collection or disposal area for changing the interfa...
03/26/1991
4975205Apparatus and method for receiving, draining and disposing of dredged material
A dump truck has a tiltable dump body with a tailgate at its rear end. A partition or weir mounted in the dump body and of lesser height than the walls of the dump body divides the dump body into front and rear compartments. A siphon is connected between ...
12/04/1990
4961842Siphon gravity classifier and clarifier
A device for separating liquids from solids and solids from solids is provided by utilizing a tall column filled with liquid which is subjected to a siphon action that pulls the liquid/solids mixture vertically through the column clarifying the liquid and...
10/09/1990
4830040Automatic swimming pool cover drainer
A float controlled siphon discharge valve mechanism operates to drain water from a swimming pool cover, and includes a lever arm attached at one end to a hinge and having a float on the other end so that the lever is of the second or third type. A closure...
05/16/1989
4513768Solar actuated drain system
A temperature actuated drain system is provided that comprises a siphon that has an inlet end for immersing in a pool of water to be drained from a roof surface and a discharge end communicating with a pressure-responsive one-way valve. A solar actuated e...
04/30/1985
4406300Roof siphon drain
Apparatus for siphoning liquid such as water which accumulates in a ponding area (16) located on a flat roof (12) to a drain (14) is disclosed. The apparatus includes a first liquid conduit (21) which has one end (58) in the accumulated water and a second...
09/27/1983
4386638Coupling for waterbed mattress valves
A coupling for filling and draining a waterbed comprises a tube for insertion into the male-threaded filler neck of a waterbed valve, and two female-threaded nuts rotatably mounted on the tube for connection to a garden hose and the male-threaded fill nec...
06/07/1983
4263934Dental waste trap
A waste trap for collecting solid wastes in a drain system connectable at a fitting to a drain pipe. The trap includes a removable receptacle which is disposable or houses a disposable insert when the trap is full. A siphon is associated with the trap to ...
04/28/1981
4171709Device for siphoning water from a ponding area on a flat roof
An apparatus for removing water from a ponding area of a flat roof having a run-off system which is no longer operable to drain water from the ponding area which comprises a structure for directing a quantity of the run-off water flowing in the run-off sy...
10/23/1979
4168717Temperature actuated siphon system
A siphon system in which an enclosed container has a chamber for heating a gaseous fluid as by solar radiation. The chamber is in continuous open communication with a siphon having an inlet at an upper level and an outlet at a lower level. A pressure resp...
09/25/1979
4129140Automatic flushing device
An automatic flushing device for an evaporative cooling system contains a water sump, circulating pump, and float-operated water makeup source. A small, adjustable portion of the return flow enters a separate timing reservoir. When the timing reservoir is...
12/12/1978
4095615Check valve and siphon tube assembly employing same
A check valve for substantially preventing fluid flow in a first direction, but allowing a substantially unrestricted fluid flow in a second, opposite direction, the check valve including a tubular body and a flapper valve hingedly disposed within the tub...
06/20/1978
4073305Siphon pump
An elongated tube is bent to have a central portion, a short leg and a long leg. The long leg is closed by a cap which is counterbalanced into the closed position. An elongated inner tube having an outer upper end passes through the sidewall of the long l...
02/14/1978
 
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