Patents Assigned to Johnson Welded Products, Inc.
  • Patent number: 7857882
    Abstract: A moisture removal apparatus for a vehicular compressed air storage system includes a canister of mist-eliminating mesh that collects moisture and oil droplets in the air and exhausts them through a gravity drain. The mesh coalesces droplets of both water and oil vapor in the air stream, and is not contaminated by either. The mist eliminating canister can be a stand-alone device through which compressed air is delivered to a pressure tank, or may be integrated into a pressure tank for space efficiency.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: December 28, 2010
    Assignee: Johnson Welded Products Inc.
    Inventor: Truman G. Johnson
  • Patent number: 7111704
    Abstract: A road vehicle utilizes hydraulic machines for primary and accessory vehicle drive functions. An internal combustion engine directly drives a first variable capacity hydraulic machine selectively operable as pump or motor, an electric machine electrically coupled to a storage battery is selectively operable as motor or generator and is mechanically coupled to a second hydraulic machine operable as pump or motor, and at least one hydraulic drive motor is coupled to a vehicle drive wheel. A controller regulates the capacity of the first hydraulic machine, and controls the functionality of the first and second hydraulic machines to selectively crank the engine or charge the storage battery. The first hydraulic machine also supplies hydraulic fluid to accessory drive motors including a power steering drive motor, an air compressor drive motor and a supercharger drive motor.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: September 26, 2006
    Assignee: Johnson Welded Products, Inc.
    Inventor: Truman G. Johnson
  • Patent number: 6158783
    Abstract: An improved and cost-effective plug-in coupling for leak-proof attachment of a pressure pipe to a pressure vessel, including a weldable ferrule secured in an opening in the pressure vessel, a plug-in fitting attached to the pressure pipe and having a plug portion inserted into a central bore of the ferrule, a pair of O-rings sealingly engaging the plug portion of the fitting and the central bore of the ferrule, and a snap ring for retaining the plug portion of the fitting in the central bore of the ferrule. The ferrule includes a broad cylindrical head that contacts the outer periphery of the pressure vessel, the ferrule being welded to the pressure vessel at the outer radial periphery of such head to form a leak-proof and durable seal between the ferrule and the pressure vessel. The broad ferrule head absorbs and dissipates the heat from the welding operation, minimizing any heat-related distortion of the central bore.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: December 12, 2000
    Assignee: Johnson Welded Products, Inc.
    Inventor: Truman G. Johnson