Patents Assigned to Deltrol Corp.
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Patent number: 11640864Abstract: A solenoid assembly includes a solenoid having a coil that defines a passageway and a plunger movable within the passageway from a retracted position to an extended position. The plunger extends along an axis between a first plunger end and an opposite second plunger end. A frame holds the solenoid and has a first opening through which the first plunger end extends when the plunger is in the retracted position and a second opening through second end of the plunger extends when the plunger is in the extended position. When the plunger is in the extended position the first plunger end retracts into the frame via the first opening.Type: GrantFiled: December 5, 2019Date of Patent: May 2, 2023Assignee: Deltrol Corp.Inventor: John Schlais
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Patent number: 11618666Abstract: A contactless valve configured to dispense a liquid can include an actuator configured to move a plug between a closed position in which the plug prevents the flow of liquid through valve body, and an open position in which liquid can be dispensed through an outlet. The valve can include an activation sensor, a presence sensor, and a controller configured to control the actuator and in electrical communication with the activation sensor and the presence sensor. The controller can be configured to switch the presence sensor into the activated state in response to the detection of the prerequisite condition by the activation sensor, and to control the actuator to move the plug from the closed position to the open position in response to the detection of the object in the upper detection zone by the presence sensor.Type: GrantFiled: July 15, 2020Date of Patent: April 4, 2023Assignee: Deltrol Corp.Inventors: Brian Cahill, Nick Buettner, James Ostrenga
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Publication number: 20220017349Abstract: A fluid dispenser can include a body defining a passageway from an inlet to an outlet, a fluid container configured be received by the body such that the fluid in fluid communication with the inlet, and a contactless valve in fluid communication with the outlet and configured to selectively dispense fluid from the fluid container. A contactless valve configured to dispense a liquid can include an actuator configured to move a plug between a closed position in which the plug prevents the flow of liquid through valve body, and an open position in which liquid can be dispensed through an outlet. The valve can include an activation sensor, a presence sensor, and a controller configured to control the actuator and in electrical communication with the activation sensor and the presence sensor.Type: ApplicationFiled: April 27, 2021Publication date: January 20, 2022Applicant: DELTROL CORP.Inventors: Brian Cahill, Nick Buettner, James Ostrenga
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Publication number: 20220017354Abstract: A contactless valve configured to dispense a liquid can include an actuator configured to move a plug between a closed position in which the plug prevents the flow of liquid through valve body, and an open position in which liquid can be dispensed through an outlet. The valve can include an activation sensor, a presence sensor, and a controller configured to control the actuator and in electrical communication with the activation sensor and the presence sensor. The controller can be configured to switch the presence sensor into the activated state in response to the detection of the prerequisite condition by the activation sensor, and to control the actuator to move the plug from the closed position to the open position in response to the detection of the object in the upper detection zone by the presence sensor.Type: ApplicationFiled: July 15, 2020Publication date: January 20, 2022Applicant: Deltrol Corp.Inventors: Brian Cahill, Nick Buettner, James Ostrenga
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Publication number: 20210174994Abstract: A solenoid assembly includes a solenoid having a coil that defines a passageway and a plunger movable within the passageway from a retracted position to an extended position. The plunger extends along an axis between a first plunger end and an opposite second plunger end. A frame holds the solenoid and has a first opening through which the first plunger end extends when the plunger is in the retracted position and a second opening through second end of the plunger extends when the plunger is in the extended position. When the plunger is in the extended position the first plunger end retracts into the frame via the first opening.Type: ApplicationFiled: December 5, 2019Publication date: June 10, 2021Applicant: Deltrol Corp.Inventor: John Schlais
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Patent number: 5300908Abstract: A high-speed impact hammer type solenoid capable of operating at high speed such as 500 to 1000 strokes per second and with a relatively long stroke length. It is housed in a cylindrical shell and includes two separate coils and magnetic circuits operating on a single short plunger. The plunger is driven magnetically in both directions. The short plunger has reduced mass. This is made possible by elongated backstops extending through the coils to the plunger and by a flux washer extending from the shell to the plunger. Close control of the plunger stroke is achieved by a non-magnetic sleeve surrounding the plunger and spacing the backstops which are screw threaded into the shell. Resilient anti-residual pads on each side of the plunger absorb the impact of the plunger with the backstop, start the plunger in the opposite direction and speed up the decay of the magnetic field.Type: GrantFiled: October 10, 1990Date of Patent: April 5, 1994Assignees: Brady USA, Inc., Deltrol Corp.Inventors: Richard S. Stone, George F. Jambor
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Patent number: 4751487Abstract: A solenoid which is driven positively in both directions by reversal of coil current and held in place at either end by flux from a permanent magnet located at the center of the frame. The permanent magnet is formed of two opposed sections fitting tightly between the plunger tube and frame, and is located in a space between two coils. In one form the two magnet sections are formed of compressible material and are recessed to fit closely around the plunger tube.Type: GrantFiled: March 16, 1987Date of Patent: June 14, 1988Assignee: Deltrol Corp.Inventor: James E. Green, Jr.
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Patent number: 4340203Abstract: A three way slide valve includes a rectangular valve slide fitted into a housing formed of two halves having mating flat surfaces. Each housing half is recessed to provide a chamber for the valve slide and also a spring chamber which restrains both ends of a double acting return spring. One end of the return spring engages one end of the valve slide and the other part of the spring engages a loop on the valve slide for return to center action. Ports in the housing halves are provided with shear seals in engagement with the valve slide.Type: GrantFiled: October 14, 1980Date of Patent: July 20, 1982Assignee: Deltrol Corp.Inventor: Verne P. Donner
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Patent number: 4203014Abstract: A stop start fixed cycle sequence timer is started at variable intervals by an adjustable automatic reset timer. This reset timer includes a clutch and resets when the clutch is disengaged. The cycling timer includes a clutch cam and cam follower which disengages and reengages the clutch while the cycling timer is going through its cycle.Type: GrantFiled: May 19, 1978Date of Patent: May 13, 1980Assignee: Deltrol Corp.Inventor: John L. Harris
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Patent number: 4091839Abstract: The ball in a ball type check valve is guided by a wire form ball cage. The cage is formed of two spring wire pieces each having two ball guiding legs, attached by cross members formed with interfitting loops which hold the pieces together by spring tension. Each guiding leg is formed with a reverse bend extending outwardly and then rearwardly along the valve body walls, this positioning the guide in the valve body. The cage is formed larger than the inside of the valve body in which it fits and also serves as a retainer for the ball valve spring. The assembly of the cage, spring and ball valve is inserted through the outlet port and the cage expands behind a shoulder in the body, locking it in place by spring tension.Type: GrantFiled: August 5, 1974Date of Patent: May 30, 1978Assignee: Deltrol Corp.Inventor: Verne P. Donner