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: 11701672
    Abstract: A sprinkler head nozzle assembly in accordance with an embodiment of the present invention includes a housing including an inlet for pressurize water and an outlet downstream of the inlet, a valve member, operable to extend and reduce an arcuate opening at the outlet of the housing, wherein the size of the arcuate opening indicates the arc of coverage of the sprinkler head nozzle assembly and a rotating distributor, mounted on a central shaft extending through the housing and the valve member, and operable to deflect a flow of water from the arcuate opening out of the nozzle assembly.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: July 18, 2023
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III
  • Patent number: 11478804
    Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: October 25, 2022
    Assignee: K-Rain Manufacturing Corp.
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Richard Zhang
  • Patent number: 10967391
    Abstract: A rotary sprinkler in accordance with an embodiment of the present disclosure includes a riser with a nozzle assembly rotatable mounted thereon. The nozzle assembly includes a pressure regulator and flow control element.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 6, 2021
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 10950211
    Abstract: A simple hearing enhancement device that takes the normally adequately loud sound levels and optimizes selective frequency gain of the patient's ear passage to improve speech comprehension.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: March 16, 2021
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 10828651
    Abstract: An adjustable spray nozzle with adjustable arc of coverage as well as spray elevation angle and flow rate. A very simple adjustable arc of coverage spray nozzle configuration is also disclosed which may be easily assembled for a particular precipitation rate and/or range of coverage at a selected nominal pressure. Also disclosed is a simple fixed arc of coverage spray nozzle with selectable ranges for a particular precipitation rate.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: November 10, 2020
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III
  • Patent number: 10729296
    Abstract: A cyclone vacuum cleaner includes two suction fan stages, three stages of separation, plus a HEPA filter and allows capturing of wet or dry material in bag-less or bagged configuration in non-porous paper or plastic bags as well as ordinary garbage bags with pull tie tops for removal, with no suction loss. A steam generator may be added to provide substitute working vacuum fluid to the normal air for dirt pickup. Acoustic sound dumping may also be provided in the architecture of the assembly.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: August 4, 2020
    Inventor: Carl L. C. Kah, Jr.
  • Publication number: 20200213776
    Abstract: A hearing enhancement device using wave amplification in the outer ear cavities of a user and transducer placement to provide frequency based enhancement of speech and music sounds without blocking the user's auditory canal.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 2, 2020
    Inventor: Carl L.C. Kah, JR.
  • Publication number: 20200160822
    Abstract: A simple hearing enhancement device that takes the normally adequately loud sound levels and optimizes selective frequency gain of the patient's ear passage to improve speech comprehension.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventor: Carl L.C. Kah, JR.
  • Publication number: 20200030830
    Abstract: A cone valve assembly including an upper valve member with a conical top portion and a stepped and spiraled top surface and a lower valve member including a central opening with a stepped and spiraled valve surface surrounding the central opening. The upper valve member is mounted in the lower valve member such that the lower valve member is rotatable and axially movable relative to the upper valve member. Rotation of the lower valve member allows for the adjustment of an arcuate slot opening that provides a conically shaped discharge stream of water from the cone valve nozzle assembly directly onto the rotating distributor to provide the desired arc of sprinkler coverage.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 30, 2020
    Inventor: Carl L.C. Kah, JR.
  • Patent number: 10546570
    Abstract: A simple hearing enhancement device that takes the normally adequately loud sound levels and optimizes selective frequency gain of the patient's ear passage to improve speech comprehension.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: January 28, 2020
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 10536782
    Abstract: A hearing enhancement device using wave amplification in the outer ear cavities of a user and transducer placement to provide frequency based enhancement of speech and music sounds without blocking the user's auditory canal.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: January 14, 2020
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 10449562
    Abstract: A cone valve assembly including an upper valve member with a conical top portion and a stepped and spiraled top surface and a lower valve member including a central opening with a stepped and spiraled valve surface surrounding the central opening. The upper valve member is mounted in the lower valve member such that the lower valve member is rotatable and axially movable relative to the upper valve member. Rotation of the lower valve member allows for the adjustment of an arcuate slot opening that provides a conically shaped discharge stream of water from the cone valve nozzle assembly directly onto the rotating distributor to provide the desired arc of sprinkler coverage.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 22, 2019
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: 10368503
    Abstract: An expandable irrigation controller for controlling a plurality of watering stations in an irrigation system includes a removable front panel and an inner housing, connected to the front panel. The inner housing includes a circuit board including control connectors which are connected electrically to the controller and a station module operable to provide an ON/OFF signal to at least one watering station of the irrigation system. The station module is electrically connected to the circuit board via the control connectors and the ON/OFF signal is provided based on instructions from the controller in accordance with the watering program. The control connectors are positioned in a substantially continuous line extending across the inner housing such that the station module is connectable to the control connectors at substantially any desired location. Multiple modules of different sizes may be mounted in the inner housing as desired.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: August 6, 2019
    Inventor: Carl L. C. Kah, Jr.
  • Publication number: 20190143361
    Abstract: A rotary sprinkler in accordance with an embodiment of the present disclosure includes a riser with a nozzle assembly rotatable mounted thereon. The nozzle assembly includes a pressure regulator and flow control element.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Inventor: Carl L.C. Kah, JR.
  • Publication number: 20190145879
    Abstract: A moisture probe or sensor including an attachment element configured for attachment to a plant, bush or tree to determine a moisture content of the plant bush or tree. The moisture probe including a transceiver configured to transmit a moisture signal indicative of the moisture content of the plant, tree or plant.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Inventor: Carl L.C. Kah, JR.
  • Publication number: 20190143360
    Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 16, 2019
    Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Richard Zhang
  • Patent number: 10232387
    Abstract: An irrigation sprinkler and sprinkler nozzle assembly including a self contained pressure regulator and flow control ring, which can be assembled with a desired spray deflector, shrub bubbler or rotating stream distributor on the top of the nozzle assembly. The pressure regulator housing is incorporated into the center of the nozzle assembly and includes a reference pressure chamber connected to atmospheric pressure with a spring bias enclosed to bias a pressure responsive movable member that is connected to an upstream pressure balanced flow throttling valve. A combination deflector pop-up pressure regulating mechanism housed in the filter of the nozzle housing assembly is also shown.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: March 19, 2019
    Inventors: Carl L.C. Kah, Jr., Carl L.C. Kah, III, Weiming Feng
  • Patent number: RE48094
    Abstract: A cyclonic separation device in accordance with an embodiment of the present application preferably includes a first cyclone chamber having a cylindrical shape with a predetermined diameter, the first cyclone chamber including, a tangential inlet positioned on a first longitudinal end of the first cyclone chamber, a baffle plate positioned in the first cyclone chamber a predetermined distance from the tangential inlet, a tangential dirt outlet positioned on a second end of the cyclone chamber, opposite the inlet and on an opposite side of the baffle plate from the tangential inlet and a center exit duct mounted in the center of the cyclone chamber having an inlet opening positioned upstream from the baffle plate such the centrifuged fluid without particles flows into the center exit duct and out of the cyclone chamber.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: July 14, 2020
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: RE48116
    Abstract: A cyclonic separation device in accordance with an embodiment of the present application preferably includes a first cyclone chamber having a cylindrical shape with a predetermined diameter, the first cyclone chamber including, a tangential inlet positioned on a first longitudinal end of the first cyclone chamber, a baffle plate positioned in the first cyclone chamber a predetermined distance from the tangential inlet, a tangential dirt outlet positioned on a second end of the cyclone chamber, opposite the inlet and on an opposite side of the baffle plate from the tangential inlet and a center exit duct mounted in the center of the cyclone chamber having an inlet opening positioned upstream from the baffle plate such the centrifuged fluid without particles flows into the center exit duct and out of the cyclone chamber.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 28, 2020
    Inventor: Carl L. C. Kah, Jr.
  • Patent number: RE48397
    Abstract: A restriction valve in accordance with an embodiment of the present invention includes a valve body adapted to be positioned at an inlet of the sprinkler, wherein the valve body includes a central opening through which water flows into the sprinkler, a rib extending downwardly from the valve body at a location beyond the margin of the central opening, a valve member configured to cooperate with the central opening to open and close the valve, wherein the valve member includes a valve stem extending downwardly from the valve member, and positioned and configured to be movably supported in a guide ring formed at a lower end of the rib, wherein the valve stem is movable vertically to move the valve member to its open and closed positions and a resilient member biasing the valve stem such that the valve member remains in an open position until water pressure pushing against the valve member reaches a predetermined level to move the valve member into the closed position to restrict the flow of water into the sprin
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: January 19, 2021
    Inventor: Carl L. C. Kah, Jr.