Patents by Inventor Joseph U. Han
Joseph U. Han has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6837448Abstract: A sprinkler apparatus has a nozzle of a cross-sectional configuration to provide a liquid jet of similar cross-sectional configuration which impacts a reflector surface to reflect a spray of a cross-sectional configuration similar to that of an area to be sprayed. The nozzle passage and reflector surface may preferably be defined on a unitary nozzle device mounted on a base.Type: GrantFiled: November 9, 2001Date of Patent: January 4, 2005Assignee: Streamtech, Inc.Inventors: Joseph U. Han, Giles A. Kendall
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Patent number: 6478237Abstract: A dirt-resistant bearing system for a sprinkler unit with a rotatable turret having a central shaft extending into a support channel formed within an inner housing. The central shaft may be formed with a relatively upper shaft portion and a relatively lower shaft portion, and the support channel may be formed with an upper channel region and a lower channel region. A first bearing and sealing assembly may be fitted substantially around an outer perimeter of the upper shaft portion and in communication with the upper channel region, and a second bearing and sealing assembly may be fitted substantially around an outer perimeter of the lower shaft portion and in communication with the lower channel region. Another aspect of the invention provides a sprinkler head with a fitted serrated seal assembly. The fitted seal assembly may include an outer case having an interior region, and a pop-up sprinkler head turret mounted on a riser sleeve slidably mounted within the interior region of the outer case.Type: GrantFiled: January 23, 2001Date of Patent: November 12, 2002Assignee: Virtual rain, Inc.Inventors: Don Michael Kearby, Joseph U. Han, Giles A. Kendall, Derick C. Wright
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Publication number: 20020053609Abstract: A sprinkler apparatus has a nozzle of a cross-sectional configuration to provide a liquid jet of similar cross-sectional configuration which impacts a reflector surface to reflect a spray of a cross-sectional configuration similar to that of an area to be sprayed. The nozzle passage and reflector surface may preferably be defined on a unitary nozzle device mounted on a base.Type: ApplicationFiled: November 9, 2001Publication date: May 9, 2002Inventors: Joseph U. Han, Giles A. Kendall
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Publication number: 20010028004Abstract: A dirt-resistant bearing system for a sprinkler unit with a rotatable turret having a central shaft extending into a support channel formed within an inner housing. The central shaft may be formed with a relatively upper shaft portion and a relatively lower shaft portion, and the support channel may be formed with an upper channel region and a lower channel region. A first bearing and sealing assembly may be fitted substantially around an outer perimeter of the upper shaft portion and in communication with the upper channel region, and a second bearing and sealing assembly may be fitted substantially around an outer perimeter of the lower shaft portion and in communication with the lower channel region. Another aspect of the invention provides a sprinkler head with a fitted serrated seal assembly. The fitted seal assembly may include an outer case having an interior region, and a pop-up sprinkler head turret mounted on a riser sleeve slidably mounted within the interior region of the outer case.Type: ApplicationFiled: January 23, 2001Publication date: October 11, 2001Inventors: Don Michael Kearby, Giles A. Kendall, Joseph U. Han, Derick C. Wright
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Patent number: 6209801Abstract: A dirt-resistant bearing system for a sprinkler unit with a rotatable turret having a central shaft extending into a support channel formed within an inner housing. The central shaft may be formed with a relatively upper shaft portion and a relatively lower shaft portion, and the support channel may be formed with an upper channel region and a lower channel region. A first bearing and sealing assembly may be fitted substantially around an outer perimeter of the upper shaft portion and in communication with the upper channel region, and a second bearing and sealing assembly may be fitted substantially around an outer perimeter of the lower shaft portion and in communication with the lower channel region. Another aspect of the invention provides a sprinkler head with a fitted serrated seal assembly. The fitted seal assembly may include an outer case having an interior region, and a pop-up sprinkler head turret mounted on a riser sleeve slidably mounted within the interior region of the outer case.Type: GrantFiled: November 18, 1999Date of Patent: April 3, 2001Assignee: Virtual Rain, Inc.Inventors: Don Michael Kearby, Joseph U. Han, Giles A. Kendall, Derick C. Wright
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Patent number: 6182306Abstract: A toilet fill valve includes an outlet pipe associated with a wash basin, an outlet tube associated with a wet-bowl configuration and an outlet assembly for filling the tank of the toilet. A blocking device includes a first plug for blocking the pipe in the absence of a wash basin, and a second plug for blocking the outlet tube in the absence of a wet-bowl configuration. An outlet assembly includes a deflector for directing water against a side wall of the tank, and an aerator for adding turbulence to the water in order to minimize noise associated with filling the tank with water.Type: GrantFiled: September 9, 1998Date of Patent: February 6, 2001Assignee: Fluidmaster, Inc.Inventor: Joseph U. Han
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Patent number: 6155493Abstract: A closed-case impact sprinkler unit having an outer case and an internally positioned riser sleeve that is upwardly extendable into a pop-up position. The riser sleeve may be formed with an external surface that is complimentary to the internal surface of the outer case to prevent the introduction of debris into the interior region of the outer case when the riser sleeve is in a pop-up position. The sprinkler unit may further include a closed-case turret assembly rotatably mounted on the riser sleeve that includes a fluid outlet and a compact impact sprinkler arm.Type: GrantFiled: March 31, 1999Date of Patent: December 5, 2000Assignee: Virtual rain, Inc.Inventors: Don Michael Kearby, Giles A. Kendall, Joseph U. Han, Derick C. Wright
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Patent number: 6059261Abstract: A plumbing connector is provided to communicate water between a wall valve and a toilet. An adapter is provided to facilitate a mating relationship between threads of a first configuration on the valve and threads of a second configuration on the connector. The adapter has a cylindrical configuration with outer threads mating with the connector, and inner threads mating with the valve. The adapter can be positioned within a cap associated with the connector so that no separate gaskets are required for sealing purposes. With the adapter, a single connector size can be inventoried to accommodate different thread configurations associated with the wall valve.Type: GrantFiled: October 19, 1998Date of Patent: May 9, 2000Assignee: Fluidmaster, Inc.Inventor: Joseph U. Han
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Patent number: 5992760Abstract: A sprinkler device for distributing water comprising a body, a nozzle, a nozzle housing rotatably and slidably mounted in the body, a fluid flow interrupter for intermittently redirecting the stream of fluid exiting from the nozzle, an interrupter drive, a flow control assembly including a free floating valve for controlling water flow to the sprinkler head, reversing mechanism for reversing the direction of movement of the nozzle housing, and a nozzle positioning system for controlling sprinkler rotation speed.Type: GrantFiled: August 2, 1998Date of Patent: November 30, 1999Assignee: Virtual Rain, Inc.Inventors: Don Michael Kearby, Giles A. Kendall, Joseph U. Han, Derick C. Wright
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Patent number: 5769111Abstract: Leak detector apparatus (40) is provided for use with a toilet inlet valve assembly (12) that includes a float (30) slidable along a vertical post (32), which can be easily installed by a handyman. The leak detector apparatus includes a buoyant body (42) and a mount (44) that pivotally supports the body about a body axis (54) on the float (30). The body has a forward end portion (56) that can engage the post to prevent the float from moving down until a chain device (60) attached to the rear of the body is pulled to pivot the body. The body has a center of buoyancy (80), when immersed in water, which lies forward of the body axis, so when immersed the body urges its forward end portion against the post to prevent the float from moving down. The forward portion of the body can include a metal strip with a sharp edge (74) that "digs" into the inlet valve plastic post. The mount includes a pair of upstanding mount posts (114) that project into air holes (112) on the float.Type: GrantFiled: January 7, 1997Date of Patent: June 23, 1998Assignee: Fluidmaster, Inc.Inventor: Joseph U. Han
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Patent number: 5634874Abstract: A portable exercise device for exercising the upper anatomy is provided. The portable exercise device includes a slide assembly having a pair of cooperating curved slides and a rack formed on each of the slides. A spring-biased elastic resistance mechanism having a pinion is interdisposed between the cooperating slides to generate resistance to relative movement of the slides. The resistance mechanism further includes a brake disc assembly in combination with a clutch assembly for providing frictional resistance in a single direction. A grip assembly including a pair of arms pivotally connected at opposite ends of the cooperating slides are positionable between a stowed position for storing and transporting the device, and an extended position for placing the user's arms in the appropriate position for performing the fly type exercise as heretofore described.Type: GrantFiled: February 2, 1996Date of Patent: June 3, 1997Assignee: Anthony M. KestInventors: Anthony M. Kest, Joseph U. Han
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Patent number: 5299742Abstract: An irrigation sprinkler nozzle comprising a nozzle body having a range nozzle passage therethrough and a spreader nozzle disposed therebelow, the spreader nozzle being formed by a generally rectangular cross-sectional chamber having a generally rectangular cross-sectional outlet orifice, the chamber and outlet orifice being oriented with their long dimensions extending in a generally lateral direction substantially horizontal with the ground, the outlet orifice being laterally but not vertically smaller in size than the size of the chamber so that a vertically oriented fan-shaped spray pattern is produced by water projected from the outlet orifice.Type: GrantFiled: June 1, 1993Date of Patent: April 5, 1994Assignee: Anthony Manufacturing Corp.Inventor: Joseph U. Han
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Patent number: 5288023Abstract: An Omega type biasing spring for use in a part circle gear driven sprinkler of the type having a reversing gear train mounted on a pivotal yoke and operated by a lost motion trip mechanism, the omega spring having a bulbous-shaped arcuate head section interconnected with laterally diverging leg sections through a narrow neck section defining a lateral gap which closes upon spring compression to reduce internal spring stress.Type: GrantFiled: October 21, 1991Date of Patent: February 22, 1994Assignee: Anthony Manufacturing Corp.Inventors: Joseph U. Han, Gerald E. Peterson
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Patent number: 5141157Abstract: A pop-up sprinkler having a nozzle housing threadably coupled to a pop-up stem, and including an axially projecting tab formed on the upper end of the stem which cooperates with spaced ribs formed on the inside of the nozzle housing to prevent over tightening of the nozzle housing relative to the stem during assembly and which resists unthreading of the nozzle housing from the stem to prevent vandals from unthreading the nozzle housing from the stem.Type: GrantFiled: August 1, 1991Date of Patent: August 25, 1992Assignee: Anthony Mfg. Corp., Industrial Div.Inventors: Joseph U. Han, Hendrik Amirkhanjan, Christopher M. Moralez
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Patent number: 4681259Abstract: An improved rotary drive sprinkler is provided for driving a sprinkler spray head in a rotary stepping motion to deliver irrigation water over a prescribed terrain area. The rotary sprinkler comprises a pop-up stem assembly carrying the spray head and movable within a sprinkler housing between a normal retracted position and an elevated spraying position when water under pressure is supplied to the sprinkler housing. During operation, the water flowing through the sprinkler housing powers a piston drive assembly including a spring-loaded drive piston which is alternately subjected to a predetermined pressure differential and normalized pressure to displace the piston in a reciprocating manner. The drive piston is coupled to a motion converter assembly for converting the reciprocal motion of the drive piston to an oscillatory rotary motion which is coupled in turn via a reversible one-way clutch assembly to the pop-up stem assembly.Type: GrantFiled: December 19, 1985Date of Patent: July 21, 1987Assignee: Anthony Manufacturing Corp.Inventors: Edward M. Troup, deceased, Giles A. Kendall, Joseph U. Han, Christopher M. Moralez, Calvin A. Gongwer
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Patent number: D319489Type: GrantFiled: February 1, 1990Date of Patent: August 27, 1991Assignee: Anthony Manufacturing CorporationInventors: Joseph U. Han, Duane E. Decker, Brian T. Patterson, Shirley C. Brodbeck