Patents by Inventor David Klafter

David Klafter 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).

  • Stem cap for air conditioning service valve
    Patent number: 6546952
    Abstract: A service valve and cap assembly is disclosed. The service valve comprises a valve stem that is inserted into a valve body. An upper portion of the valve body defines a collar selectively formable between a first installation inner diameter to a second retention inner diameter. A service valve sealing cap includes a base portion and a generally annular sealing portion. An annular shoulder is formed on the sealing portion inner diameter, such that the radially inner diameter of the shoulder portion is less than the collar first outer diameter, and is greater than the collar second outer diameter.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: April 15, 2003
    Assignee: Parker-Hannifiin Corporation
    Inventors: Michael G. Martin, David Klafter, Todd Markward