Patents by Inventor Carl L. C. Kah, Jr.

Carl L. C. Kah, Jr. 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).

  • Patent number: 6732952
    Abstract: An oscillating nozzle sprinkler for directing an adjustable flow of water therefrom at adjustable desired range and arc of coverage and at a pre-settable precipitation rate. The desired flow rate or precipitation rate for a particular arc of coverage can be selected and the flow will then be automatically varied as the arc of sprinkler oscillation is adjusted to maintain the precipitation rate that was set. The nozzle discharge range is adjustable from the top with integrated flow control to automatically maintain the precipitation rate that was set constant as the range is changed for a smaller area of coverage due to the reduced range.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: May 11, 2004
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 6601781
    Abstract: A rotary drive sprinkler having a multiplicity of nozzles which can be changed at any time. The nozzle assembly can have a cylindrical housing having a plurality of nozzles to rotate against a cylindrical housing having at least one stream outlet opening. A nozzle assembly can have a cylindrical cavity at its outer portion receiving a flexible nozzle strip for directing flow from a nozzle housing. A nozzle sleeve, or ring, having a plurality of exit nozzles around the outside of the nozzle assembly can be rotated about an inner housing.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: August 5, 2003
    Inventors: Carl L. C. Kah, III, Carl L. C. Kah, Jr.
  • Patent number: 6336597
    Abstract: An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an inoperative position, where the sprinkler head is not oscillated.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: January 8, 2002
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 6237862
    Abstract: A rotary drive sprinkler having a multiplicity of nozzles which can be changed at any time. The nozzle assembly can have a cylindrical housing having a plurality of nozzles to rotate against a cylindrical housing having at least one stream outlet opening. A nozzle assembly can have a cylindrical cavity at its outer portion receiving a flexible nozzle strip for directing flow from a nozzle housing. A nozzle sleeve, or ring, having a plurality of exit nozzles around the outside of the nozzle assembly can be rotated about an inner housing.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: May 29, 2001
    Inventors: Carl L. C. Kah, III, Carl L. C. Kah, Jr.
  • Patent number: 6182909
    Abstract: A rotary drive sprinkler has a nozzle assembly having a recess in a cylindrical housing for receiving a cylindrical nozzle selection disc having a plurality of nozzle openings. The cylindrical nozzle selection disc is rotatable to place one of its nozzle openings in an exit flow passage in the cylindrical housing. An arc set indicating and setting mechanism is included.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: February 6, 2001
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III
  • Patent number: 6109545
    Abstract: An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an inoperative position, where the sprinkler head is not oscillated.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: August 29, 2000
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 6085995
    Abstract: A rotary drive sprinkler having a multiplicity of nozzles which can be selectively changed at any time. The nozzle assembly has an internal rotor member for bringing one of the nozzles into operation as the internal rotor is turned. A water flow can be directed from a rotor to a selected nozzle in a fixed circumferential row of nozzles to create a nozzle stream leaving the nozzle assembly, or a nozzle stream can be directed from a specific nozzle of a circumferential row of nozzles in an internal rotor to a single passage open to the exterior of the nozzle assembly.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: July 11, 2000
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III
  • Patent number: 5709370
    Abstract: An alternating electric current integral pilot valve actuator and pilot valve. The magnetic flux core of the actuator is a short flux path through a "U" shaped magnetic material piece providing two pole pieces for a magnetic material valve member to be pulled against the two pole pieces which then completes the magnetic flux path, opens an integral pilot valve port and reduces the coil current to a lower level.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: January 20, 1998
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5653390
    Abstract: An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an operative position, where the sprinkler head is not oscillated.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: August 5, 1997
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5645264
    Abstract: Flow control valve with round tilted valve seat and pivotally mounted matching spherical valve plug for leak tight shut off with generous Mfg tolerances and low pressure drop. Method shown for automatically limiting bleed flow during valve open and automatically restricting bleed flow at near valve close position to slow valve closing.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: July 8, 1997
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5588594
    Abstract: An adjustable arc spray nozzle assembly is set forth which includes a cylindrical housing member with an arc set flow control member coacting therewith to provide an adjustable arc of flow directed outwardly by a deflector. The adjustable arc of flow is achieved by a unique interaction between a radially spiraled outlet opening and an axially spiraled and sloped member. The configuration facilitates easy cleaning of the flow control area while the sprinkler is operating, and provides ease of manufacture and assembly.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: December 31, 1996
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5490286
    Abstract: A location monitoring system is provided having a radio frequency transmitter for a person or object and radio frequency receiver for someone to monitor movement of the person or object, the receiver sounding an alarm at a predetermined time after failure to receive a signal. The transmitter is made having an intermittent transmitted signal and the receiver is made having an off-timer to coordinate with the intermittent signal, the off times saving battery power. The radio frequency receiver has an electronic switching device controlled by the radio frequency transmitter for sounding an alarm. An antenna is located in part of the carrying strap of the transmitter. The radio frequency transmitter can have various devices for sounding the alarm.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: February 6, 1996
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5417370
    Abstract: A transmission device having an input shaft and oscillating output gear with an oscillating connection therebetween. The oscillating connection comprising a pivoted gear cage with oppositely rotatable driving gears, the gear cage having a mechanism to pivot it to connect the input shaft and output gear alternately with the driving gears. The oscillating output gear having an adjustment to control the angle of oscillation. A liquid can be directed through the transmission to an oscillating nozzle.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: May 23, 1995
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5357254
    Abstract: A location monitoring system is provided having a radio frequency transmitter for a person or object and radio frequency receiver for someone to monitor movement of the person or object, the receiver sounding an alarm at a predetermined time after failure to receive a signal. The transmitter is made having an intermittent transmitted signal and the receiver is made having an off-timer to coordinate with the intermittent signal, the off times saving battery power. The radio frequency receiver has an electronic switching device controlled by the radio frequency transmitter for sounding an alarm. An antenna is located in part of the carrying strap of the transmitter. The radio frequency transmitter can have various devices for sounding the alarm.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: October 18, 1994
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5245314
    Abstract: A location monitoring system is provided having a radio frequency transmitter for a person or object and radio frequency receiver for someone to monitor movement of said person or object, said receiver sounding an alarm at a predetermined time after failure to receive a signal. The transmitter is made having an intermittent transmitted signal and the receiver is made having an off-timer to coordinate with said intermittent signal, said off times saving battery power. The radio frequency receiver has an electronic switching means controlled by said radio frequency transmitter for sounding an alarm. An antenna is located in part of the carrying strap of said transmitter. The radio frequency transmitter can have various devices for sounding the alarm.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: September 14, 1993
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5213016
    Abstract: A cover member and replacing tool for disconnecting a cover from a sprinkler and removing it and also for replacing a cover on a sprinkler and connecting it. The tool has a handle with a cap member for placing over a cover. The cap member cooperates with radially placed outstanding lugs on the cover to rotate it in one direction to disconnect it and in the opposite direction to connect it. The cap member has projections extending therefrom for engaging surfaces on the cover for lifting it. The projections are movable for disengagement from the cover after the cover has been replaced and connected.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: May 25, 1993
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5199646
    Abstract: A sprinkler having a nozzle for directing a desired flow of water therefrom wherein the nozzle is mounted in a rotatable nozzle housing. The nozzle has two flow passages therethrough, a primary nozzle passage and a secondary nozzle passage, the flow through the primary nozzle passage being directed therethrough for long range coverage, and the flow through the secondary nozzle passage being staggered, or off-set, for short range coverage.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: April 6, 1993
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 5148990
    Abstract: An adjustable arc spary nozzle is set forth which includes a cylindrical member with an arc set member therein to provide adjustable flow directed into a spray deflector, either stationary or rotary. Modifications are presented to obtain varying effects to the flow. The spray deflector is shown: (1) fixed to the cylindrical member; (2) fixed to the arc set member; and (3) rotating.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: September 22, 1992
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: D480449
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: October 7, 2003
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III
  • Patent number: RE35037
    Abstract: A sprinkler having a nozzle for directing a desired flow of water therefrom, the sprinkler having a water turbine drive device for rotating the nozzle in response to water passing through the sprinkler; the sprinkler has a seal between its cover and housing and with a pop-up riser, the nozzle being mounted in a rotatable nozzle housing connected to the water turbine drive device; a deflector is mounted in the nozzle housing for moving into and out of the water flow from the nozzle, the deflector being connected to a pivotally mounted arm with a cam follower actuated by a cam on the top of the riser; a modified sprinkler has two flow passages therethrough to a primary nozzle being directed through the water turbine drive device while the flow to the secondary nozzle is through a valving device to produce a predetermined contour.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: September 19, 1995
    Inventor: Carl L. C. Kah, Jr.