Abstract: A vent plug having a main vent aperture that extends from an inner side into the plug and connects to a transverse vent passage that intersects the main vent aperture. The main vent aperture and the transverse vent passage are connected to provide a continuous path for fluid communication. The main vent aperture includes a conical surface that is tapered to be narrower nearer the inner side of the vent plug. A poppet is located within the main vent passage and the poppet has a stem that extends from a distal portion of the poppet. The stem has a shoulder that is opposite the distal portion. The distal portion is adjacent to the conical portion of the main vent aperture. The distal portion has an annular recess for receiving a seal. The poppet is movable between an open and closed position.

Abstract: A system for electrically controlling air brakes on a trailer having an electrically actuated valve for releasing pressurized air at a controlled rate. The trailer is connectable to a standard electrical connector on a towing vehicle that provides a proportional braking signal. The proportional signal is sent to a controller that actuates the electrically actuated valve. When the controller receives the proportional braking signal from the towing vehicle representing no braking force, the controller actuates the electrically actuated valve to produce no air pressure to the air brake. When the controller receives the proportional braking signal from the towing vehicle representing full braking force, the controller actuates the electrically actuated valve to provide air to the air brake corresponding to full braking force of the air brakes.

Abstract: A hub mounted grease cap having a sleeve with an inner end and an outer end. The outer end has an outer end surface that is opposite the inner end. The sleeve encloses a bore that extends through the sleeve. The inner end has an outer diameter that may be a press fit or threaded connection to a hub into which it is installed. An end plug has an end wall and an aperture through the end wall. There is a shaft that extends through the aperture in the end wall of the end plug. A wedge block is connected to the shaft. A seal has a portion that is located between the end wall of the end plug and the wedge block. The seal expands radially outward against the bore of the sleeve when the wedge block is drawn toward the end wall.

Abstract: The present disclosure is related to a hubcap vent plug that allows for simultaneous ventilation and debris collection of a hubcap comprising a magnet, a wireless communication sensor, and a plug body. In embodiments the wireless communication sensor is capable of monitoring internal characteristics of a hubcap. The plug body comprises an outer portion and an inner portion, wherein the outer portion comprises an external surface, an internal surface, a perimeter surface, and at least one borehole, and the inner portion comprises an outer lip, a magnet housing, and an internal gap.

Abstract: A system for electrically controlling air brakes on a trailer having an electrically actuated valve for releasing pressurized air at a controlled rate. The trailer is connectable to a standard electrical connector on a towing vehicle that provides a proportional braking signal. The proportional signal is sent to a controller that actuates the electrically actuated valve. When the controller receives the proportional braking signal from the towing vehicle representing no braking force, the controller actuates the electrically actuated valve to produce no air pressure to the air brake. When the controller receives the proportional braking signal from the towing vehicle representing full braking force, the controller actuates the electrically actuated valve to provide air to the air brake corresponding to full braking force of the air brakes.