| Patent Number |
Title Of Patent |
Date Issued |
| D250415 |
Filter head |
November 28, 1978 |
|
| 5462678 |
Air blast backwash assembly for flexible filter device |
October 31, 1995 |
| A filter device including means to produce an air actuated purge for backwashing a filter assembly including a double sieve basket having a flexible filter between the double baskets. The backwash removes caked contaminant from the filter and baskets. The purge uses only the quantity |
| 5176826 |
Purge construction for a vibrating sieve filter |
January 5, 1993 |
| A vibrating sieving unit for insertion into a housing to form a sieving filter. The vibrator directly vibrates the sieving cylinder reducing the buildup of filter cake for improved performance. A unique cleaning-in-place system is presented utilizing the fluid being filtered as the p |
| 5128032 |
Vibrating sieve filter with bars |
July 7, 1992 |
| A vibrating sieving unit for insertion into a housing to form a sieving filter. An air pressure operated vibrator directly vibrates the sieving cylinder to reduce the buildup of filter cake for improved performance. Tuning bars connected between the cover and the vibrator are structurall |
| 4970004 |
Vibrating sieve filter |
November 13, 1990 |
| A vibrating sieving unit for insertion into a housing to form a sieving filter. The sieving unit can be inserted into an installed casing of a filter unit by the use of a manifold plate. The vibrator directly vibrates the sieving cylinder reducing the buildup of filter cake for improved |
| 4721563 |
Fluid filtering device |
January 26, 1988 |
| A fluid filtering device employs a removably insertable filter element which must be positioned within the device in order to avoid an indicator signal thereby alerting the user to inadvertant use of the filtering device without the filter element. The device generally includes a filter |
| 4651570 |
Differential pressure monitor |
March 24, 1987 |
| The present invention provides a differential pressure monitor having an elongated housing defining an elongated interior chamber. A piston is axially slidably mounted within the chamber and divides the chamber into two subchambers, each of which are fluidly connected to a fluid system. |
| 4574047 |
Filtering device |
March 4, 1986 |
| A fluid filtering device comprising a housing having an open top and defining an interior chamber while an inlet and an outlet on the housing are open to the chamber. A filter bag is removably insertable into the chamber through the open top of the housing and to a filtering position in |
| 4497336 |
Valve assembly |
February 5, 1985 |
| A valve assembly is disclosed which comprises a housing having at least two fluid ports which are adapted for connection to a fluid system. A piston is slidably mounted in the housing and movable between a first position in which the fluid ports are fluidly connected and a second positio |
| 4496459 |
Flexible filter device with means to position filter bag |
January 29, 1985 |
| A fluid filtering device comprising a housing having an open top and defining an interior chamber while an inlet and an outlet on the housing are open to the chamber. A filter bag is removably insertable into the chamber through the open top of the housing and to a filtering position in |
| 4485844 |
Back pressure inducer |
December 4, 1984 |
| A back pressure inducer and check valve is disclosed for use with a fluid system having inlet passageway, an outlet passageway and in which fluid flows from the inlet and to the outlet passageway. The back pressure inducer comprises a valve seat secured to the system and having a fluid |
| 4434670 |
Fluid flow meter |
March 6, 1984 |
| A fluid flow meter is provided for indicating the fluid flow rate in two or more predetermined flow ranges. The flow meter comprises a housing having an inlet open to a cylindrical inlet chamber and an outlet open to a cylindrical outlet chamber. At least two cross passages in the housin |
| 4419240 |
Fluid filtering device |
December 6, 1983 |
| A fluid filtering device comprising a housing having an interior chamber with an open top and an inlet and outlet open to the chamber. An annular seat is secured to the housing within the chamber in a position spaced downwardly from the open top so that the seat protrudes inwardly into t |
| 4399033 |
Fluid filtering device |
August 16, 1983 |
| A fluid filtering device is provided for use with a fluid reservoir. The filtering device comprises a housing having an elongated tubular and cylindrical part defining an interior chamber. A fluid port is formed at one end of the housing and the port is open to the chamber. The housing i |
| 4387022 |
Fluid filtering device |
June 7, 1983 |
| A fluid filtering device is provided for use with a fluid system having a fluid reservoir at least partially filled with fluid. The filter device comprises a housing which is submerged within the reservoir and has a fluid port. An elongated filter assembly comprising a tubular filter |
| 4372855 |
Filter device with air bleed |
February 8, 1983 |
| A fluid filtering device comprising a housing having an axis and defining an interior chamber. In one preferred embodiment a fluid inlet port is formed at one end of the housing which is open to the chamber while a fluid outlet port is formed on one side and is also open to the chamber. |
| 4299696 |
Fluid filtering device |
November 10, 1981 |
| A fluid filtering device is provided which is particularly suitable for connection with the suction line of a hydraulic pump. The fluid filtering device comprises an elongated tubular cylindrical housing open at each end and which has at least its lower end submerged in a reservoir of th |
| 4281554 |
Fluid flow meter |
August 4, 1981 |
| A fluid flow meter is provided and comprises a tubular and cylindrical housing constructed of a transparent material and having an upper axial end, a lower axial end and defining an interior fluid chamber therebetween. A fluid inlet is fluidly connected to the lower end of the chambe |
| 4268384 |
Spin-off filter head assembly |
May 19, 1981 |
| A head assembly for a spin-off filter is provided and comprises a stamped housing having a closed top wall and an open bottom with a flange adapted to sealingly engage the spin-off filter. A tube extends through the housing and is secured to the housing by appropriate means, such as |
| 4265761 |
Fluid filtering device |
May 5, 1981 |
| A fluid filtering device is provided for connection with a fluid line. The fluid device includes a housing having a fluid inlet on one end, a fluid outlet on the other end and a fluid passage formed through the housing. The fluid passage connects the inlet with the outlet and includes a |
| 4265271 |
Relief valve |
May 5, 1981 |
| A unique relief valve is provided for use with a fluid system and comprises a reducing bushing having a throughbore. The bushing is externally threaded for connection with a standard fluid connector and, similarly, is internally threaded around its throughbore for connection to a further |
| 4215718 |
Relief valve |
August 5, 1980 |
| A novel relief valve is provided for connection with a fluid system. The relief valve includes an elongated housing having an inlet and an outlet with a fluid passage connecting the inlet to the outlet. Preferably, the housing is constructed of a number of conventional and readily availa |
| 4197207 |
Fluid filtering device |
April 8, 1980 |
| A fluid filtering device is provided for connection with a fluid line. The fluid device includes a housing having a fluid inlet on one end, a fluid outlet on the other end and a fluid passage formed through the housing. The fluid passage connects the inlet with the outlet and includes a |
| 4183812 |
Fluid filtering device |
January 15, 1980 |
| A fluid filtering device is provided for connection with a fluid line. The fluid device includes a housing having a fluid inlet on one end, a fluid outlet on the other end and a fluid passage for connecting the inlet to the outlet. The fluid passage includes an elongated cylindrical wall |
| 4167483 |
Fluid filtering device |
September 11, 1979 |
| A fluid filtering device is provided which is particularly suitable for connection with the return or pressure line of a hydraulic system. The fluid filtering device comprises an elongated tubular cylindrical housing open at each end and which has at least its lower end submerged in a fl |
| 3970566 |
Fluid filtering device |
July 20, 1976 |
| A fluid filtering device utilizing a standard or conventional tee connector and a standard or conventional pipe as the housing. A filter assembly is threadably received in one end of the tee connector and carries a filter element which extends into the pipe. |
