Patents by Inventor Neil D. Jenkins

Neil D. Jenkins 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: 6823682
    Abstract: An absorption chiller having a protection system for preventing the chilled water in the evaporator tubes from freezing in the event the water flow through the tubes closes down while the machine is running. A sensor in the evaporator heat exchanger is arranged to detect when the water flow through the heat exchanger tubes closes down and signals the machine controller. The controller, in turn, shuts down the machine and opens a valve in a feed line to the evaporator to deliver a high temperature working fluid from another section of the machine to the evaporator to maintain the temperature in the evaporator above that at which the water in the tubes freezes.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: November 30, 2004
    Assignee: Carrier Corporation
    Inventors: Neil D. Jenkins, David M. Martini, Anthony Brancato
  • Patent number: 6637221
    Abstract: A method of controlling the capacity of an absorption chiller by regulating the heat input to a generator in response to a selected one of two system variables. The first variable involves the measured chilled water temperature leaving the system evaporator and the second involves the calculated solution concentration that is being returned to the absorber. Data relating to each variable is sent to a selector where it is processed so that the data can be used to control the heat input to the generator. The temperature data is used to control the heat input during normal chiller operation, however, the selector changes over control to the concentrate related data when the solution concentration level approaches the solution crystallization limit.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: October 28, 2003
    Assignee: Carrier Corporation
    Inventors: Neil D. Jenkins, Richard A. Kolk