Patents by Inventor Cliff Ungerecht
Cliff Ungerecht 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: 7401622Abstract: A pressure regulator assembly comprising: a regulator body having a housing, an inlet portion at one end of the housing and a cap at an opposite end of the housing, the inlet portion and the cap in substantially coaxial alignment along a regulator body axis; a pressure regulator module received in the housing, interposed between the inlet portion and the cap, with a pressure regulator module center axis inclined at an angle to the regulator body axis; the pressure regulator module incorporating a plunger movable toward and away from a valve seat in axial alignment with the plunger; a flow path passing through the plunger and in communication with the inlet portion and the cap; and wherein the cap is removable from the regulator body housing to provide access to the pressure regulator module.Type: GrantFiled: June 9, 2006Date of Patent: July 22, 2008Assignee: Nelson Irrigation CorporationInventor: Cliff Ungerecht
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Publication number: 20070095936Abstract: A protective sleeve for a sprinkler head assembly supported on a riser, the sleeve comprising an open-ended tubular member having an upper end and a lower end, the open upper end sized to enclose a sprinkler head and having an internal shoulder upon which a part of the sprinkler head is adapted to seat; the lower end provided with a locking element for securing open-ended tubular member to the sprinkler head assembly.Type: ApplicationFiled: October 16, 2006Publication date: May 3, 2007Applicant: Nelson Irrigation CorporationInventor: Cliff Ungerecht
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Publication number: 20060283506Abstract: A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a direction of flow of fluid through the regulator housing; a first chamber above the piston and a second chamber below the piston; a passage establishing fluid communication between the outlet end and the first chamber; and at least one pinch arm pivotally mounted at one end within the regulator housing and movable in response to movement of the piston by an increase in fluid pressure in the first chamber so that an opposite end of the at least one pinch arm will pinch a portion of the flow tube and thereby restrict flow through the flow tube.Type: ApplicationFiled: August 30, 2006Publication date: December 21, 2006Applicant: Nelson Irrigation CorporationInventors: George Sesser, Craig Nelson, Cliff Ungerecht, Michael Youngberg
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Patent number: 7140595Abstract: A fluid pressure regulator comprising a tubular housing having a fluid inlet at one end thereof and a fluid outlet at an opposite end and a fluid passage therebetween; a tubular plunger mounted for reciprocal movement in the fluid passage, the plunger having a flow control end and a piston end; a seat in the fluid passage including a seating surface located axially upstream of the plunger and adapted to be approached or engaged by a lower edge of the flow control end of the plunger, the seat supported centrally within the fluid passage by a single radially-oriented strut.Type: GrantFiled: December 12, 2005Date of Patent: November 28, 2006Assignee: Nelson Irrigation CorporationInventors: Michael Youngberg, Cliff Ungerecht, Barton R. Nelson
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Patent number: 7048001Abstract: A fluid pressure regulator comprising a tubular housing having a fluid inlet at one end thereof and a fluid outlet at an opposite end and a fluid passage therebetween; a tubular plunger mounted for reciprocal movement in the fluid passage, the plunger having a flow control end and a piston end; a seat in the fluid passage including a seating surface located axially upstream of the plunger and adapted to be approached or engaged by a lower edge of the flow control end of the plunger, the seat supported centrally within the fluid passage by a single radially-oriented strut.Type: GrantFiled: April 13, 2004Date of Patent: May 23, 2006Assignee: Nelson Irrigation CorporationInventors: Michael Youngberg, Cliff Ungerecht, Barton R. Nelson
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Publication number: 20060086391Abstract: A fluid pressure regulator comprising a tubular housing having a fluid inlet at one end thereof and a fluid outlet at an opposite end and a fluid passage therebetween; a tubular plunger mounted for reciprocal movement in the fluid passage, the plunger having a flow control end and a piston end; a seat in the fluid passage including a seating surface located axially upstream of the plunger and adapted to be approached or engaged by a lower edge of the flow control end of the plunger, the seat supported centrally within the fluid passage by a single radially-oriented strut.Type: ApplicationFiled: December 12, 2005Publication date: April 27, 2006Applicant: Nelson Irrigation CorporationInventors: Michael Youngberg, Cliff Ungerecht, Barton Nelson
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Publication number: 20050263188Abstract: A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a direction of flow of fluid through the regulator housing; a first chamber above the piston and a second chamber below the piston; a passage establishing fluid communication between the outlet end and the first chamber; and at least one pinch arm pivotally mounted at one end within the regulator housing and movable in response to movement of the piston by an increase in fluid pressure in the first chamber so that an opposite end of the at least one pinch arm will pinch a portion of the flow tube and thereby restrict flow through the flow tube.Type: ApplicationFiled: June 1, 2004Publication date: December 1, 2005Applicant: Nelson Irrigation CorporationInventors: George Sesser, Craig Nelson, Cliff Ungerecht, Michael Youngberg
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Publication number: 20050242573Abstract: A weight component for an irrigation drop tube includes an elongated, hollow core sleeve, the core sleeve having a radially outwardly directed shoulder at one end connected to a radially outer skirt. A weight sleeve is supported at one end by the shoulder, inside the outer skirt, such that a chamber is created between the core sleeve and the weight sleeve. This chamber is at least partially filled with ballast material, and a cap closes the chamber at an opposite end of the weight sleeve.Type: ApplicationFiled: April 30, 2004Publication date: November 3, 2005Applicant: Nelson Irrigation CorporationInventors: Craig Nelson, Cliff Ungerecht
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Publication number: 20050224117Abstract: A fluid pressure regulator comprising a tubular housing having a fluid inlet at one end thereof and a fluid outlet at an opposite end and a fluid passage therebetween; a tubular plunger mounted for reciprocal movement in the fluid passage, the plunger having a flow control end and a piston end; a seat in the fluid passage including a seating surface located axially upstream of the plunger and adapted to be approached or engaged by a lower edge of the flow control end of the plunger, the seat supported centrally within the fluid passage by a single radially-oriented strut.Type: ApplicationFiled: April 13, 2004Publication date: October 13, 2005Applicant: Nelson Irrigation CorporationInventors: Michael Youngberg, Cliff Ungerecht, Barton Nelson
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Patent number: 5823580Abstract: A unitarily formed, one-piece connector includes an inner, open ended tubular insert portion, one end of which has a plurality of radially outwardly directed annular barbs on an exterior surface thereof. The one end is further provided with a radially outer sleeve, the sleeve having at least one continuous, radially inwardly directed annular barb formed on an interior surface thereof. The one end is adapted to receive one end of a length of flexible tubing between the sleeve and the tubular insert portion. A coupling assembly for supporting a sprinkler and for connecting the sprinkler to a supply conduit includes a coupling body having an axial through-bore, one end of the coupling body having a flexible tubing connector portion, and the other end of the coupling body having a screw thread formed thereon, adapted for connection to the sprinkler body.Type: GrantFiled: November 1, 1996Date of Patent: October 20, 1998Assignee: Nelson Irrigation CorporationInventor: Cliff Ungerecht