Abstract: An antenna coupler can include an RF coupler comprising an RF coupler top portion and an RF coupler base portion, wherein an internal antenna can be connected to an electronic printed circuit board for RF signal output and the internal antenna can be partially potted with respect to the electronic printed circuit board for environmental protection of electronics. The antenna coupler can further include a housing that includes a top cover housing. The RF coupler top portion can reside on the top cover housing. In addition, the RF coupler top portion can include a flex-rigid printed circuit board.

Abstract: A wideband antenna apparatus can include a ground plane on a printed circuit board, and a plastic substrate that can support an antenna metal structure of an antenna. The antenna can be part of an antenna assembly that can connect to the printed circuit board. The wideband antenna apparatus may further include a metal radiating element mounted to the plastic substrate with heat staking, and a feeder leg electrically connected to an RF feeder port. The antenna can be connected directly to the RF feeder port and the plastic substrate can control variations in the radiation performance of the antenna due to, for example, manufacturing variations.

Abstract: A handheld pneumatic tire pressure gauge includes a substantially hollow tubular body section having a gauge head at one end and an open end opposite the gauge head. The gauge head is configured to operatively connect to a pneumatic tire. An elongated measurement scale is slidable positioned within the body section and is configured to be forced out of the body section through the open end. The measurement scale extends outwardly though the open end a distance proportional with a measured air pressure. The measurement scale includes a series of rectangular markers spaced apart at intervals and arranged in groups of common hue along its length.

Abstract: A mechanical gauge includes a stock panel with a first measurement scale, and a slide movably arranged relative to the stock panel. The first measurement scale has a series of marks spaced apart at regular intervals within a region of interest. The slide includes a second measurement scale adapted to selectively overlie the first measurement scale within the region of interest. The second measurement scale has a second series of marks spaced apart at regular intervals corresponding to the first series of marks of the first measurement scale. An elongated measurement probe is affixed to the slide and adapted for selectively extending into a groove formed in the tread of the vehicle tire.

Abstract: A mechanical gauge includes a stock panel with a first measurement scale, and a slide movably arranged relative to the stock panel. The first measurement scale has a series of marks spaced apart at regular intervals within a region of interest. The slide includes a second measurement scale adapted to selectively overlie the first measurement scale within the region of interest. The second measurement scale has a second series of marks spaced apart at regular intervals corresponding to the first series of marks of the first measurement scale. An elongated measurement probe is affixed to the slide and adapted for selectively extending into a groove formed in the tread of the vehicle tire.

Abstract: A mechanical gauge includes a stock panel with a first measurement scale, and a slide movably arranged relative to the stock panel. The first measurement scale has a series of marks spaced apart at regular intervals within a region of interest. The slide includes a second measurement scale adapted to selectively overlie the first measurement scale within the region of interest. The second measurement scale has a second series of marks spaced apart at regular intervals corresponding to the first series of marks of the first measurement scale. An elongated measurement probe is affixed to the slide and adapted for selectively extending into a groove formed in the tread of the vehicle tire.

Abstract: A mechanical gauge includes a stock panel with a first measurement scale, and a slide movably arranged relative to the stock panel. The first measurement scale has a series of marks spaced apart at regular intervals within a region of interest. The slide includes a second measurement scale adapted to selectively overlie the first measurement scale within the region of interest. The second measurement scale has a second series of marks spaced apart at regular intervals corresponding to the first series of marks of the first measurement scale. An elongated measurement probe is affixed to the slide and adapted for selectively extending into a groove formed in the tread of the vehicle tire.

Abstract: A dual pressure boiler system has a bottom furnace that operates as a low pressure natural steam generating system and a top furnace that operates as a high pressure natural steam generating system. The low pressure natural steam generating system has a low pressure steam drum, a first pump for providing feed water to the low pressure steam drum, and a low pressure superheater fluidly connected to the low pressure steam drum. The high pressure natural steam generating system has a high pressure steam drum, a second pump for providing feed water to the high pressure steam drum, and a high pressure superheater fluidly connected to the high pressure steam drum.