Patents Assigned to Air Tight
  • Pressurized wheel hub system
    Patent number: 7740036
    Abstract: A system for pressurizing wheel hub formed from an air-tight sealing arrangement located on each end of a wheel hub to form a closed air system in the interior of the wheel hub. The closed air system fluidly coupled to a DC power air compressor or pressurized air tank for receiving pressurized air. A pressure gauge provides a visual indication of the air pressure in the closed air system whereby a breached seal condition within the wheel hub can be detected.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: June 22, 2010
    Assignee: Air Tight, LLC
    Inventors: Henry Dombroski, Anthony Cunningham
  • Environment protector air compressor pressurized wheel hub
    Patent number: 7226133
    Abstract: A pressurized wheel hub formed from an air-tight sealing arrangement located on each end of a wheel hub to form a closed air system in the interior of the wheel hub. The closed air system fluidly coupled to a DC power air compressor for receiving pressurized air. A pressure gauge provides a visual indication of the air pressure in the closed air system whereby a breached seal condition within the wheel hub can be detected.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: June 5, 2007
    Assignee: Air Tight, LLC
    Inventors: Henry Dombroski, Anthony Cunningham
  • Environment protector-pressurized wheel hub
    Patent number: 7125084
    Abstract: A hub cap for a wheel hub having a cylindrical housing with a closed first end and an open second end adapted for attachment in an air-tight sealing arrangement to the outer end of a wheel hub to form a closed air system in the interior of the wheel hub. An air pressure gauge in an air flow connection with the closed air system is operable to provide a visual indication of the air pressure in the closed air system. The air pressure gauge includes a dial face and a pressure indicating needle moving relative to the dial face in direct relation to the air pressure within the closed air system. The dial face includes indicia thereon to assist an observer to readily identify a breached seal condition within the wheel hub.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: October 24, 2006
    Assignee: Air Tight
    Inventors: Henry Dombrowski, Anthony Cunningham
  • Emergency axle
    Patent number: 7108336
    Abstract: An emergency axle is provided for small trailers normally pulled by automobiles or small trucks. The emergency axle may be carried on the trailer on in the pulling vehicle. In the event an axle is damaged or breaks, the emergency axle is placed over the end of that axle so that the wheel is remounted and the trip continues. The emergency axle has an extension tube for sliding over the end of the damaged axle. One end of the tube is closed with an attachment plate which connects to the brake mounting plate on the trailer axle. The other end of the tube is closed by an axle plate with a stub axle to which the wheel can be mounted.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: September 19, 2006
    Assignee: Air Tight
    Inventor: Henry Dombroski