Abstract: A valve stem pressure poppet incorporated into a tire valve cap for monitoring tire air pressure. The indicator assembly is screw attached by a connector onto an existing valve stem. The assembly includes a hollow outer tube for housing a slideably disposed indicator, a sealed space above the indicator, a compression spring and a connector end fitting. An air passage runs throughout the length the indicator. Once the assembly is engaged, pressurized air feeds directly through the indicator into the sealed space, forcing the indicator down against the force of the compression spring. If the tire remains above a predetermined critical low pressure point, the indicator will remain in the down “equilibrium” position. However, if the air pressure in the tire drops below the critical pressure point the compression force of the spring will overcome the downward pressure on the indicator, and the indicator disengages or “pops” up.

Abstract: A quick reference guide in the form of a combination keychain and pocket-sized informational fandeck for easy and convenient carrying on a user's person. The fandeck with dimensions of approximately ¾-1¼ inches by 2-2½ inches by 0.08 to 0.12 inches is constructed of approximately 5 coated cardboard or plastic cards stacked on top of each other. Each card has a corresponding through-bore at one end. The cards are bound together at the through-bore by a single grommet and are rotateable about the grommet. Each card is printed or engraved with text, illustrations, logos, promotional matter or the like. A single key ring is attached to the grommet.

Abstract: A valve stem pressure poppet incorporated into a tire valve cap for monitoring tire air pressure. The indicator assembly is screw attached by a connector onto an existing valve stem. The assembly includes a hollow outer tube for housing a slideably disposed indicator, a sealed space above the indicator, a compression spring and a connector end fitting. An air passage runs throughout the length the indicator. Once the assembly is engaged, pressurized air feeds directly through the indicator into the sealed space, forcing the indicator down against the force of the compression spring. If the tire remains above a predetermined critical low pressure point, the indicator will remain in the down “equilibrium” position. However, if the air pressure in the tire drops below the critical pressure point the compression force of the spring will overcome the downward pressure on the indicator, and the indicator disengages or “pops” up.

Abstract: A dust shield for fitting around and removably engaging an air pressure gauge apparatus fitted to a tire valve stem protruding from and in fluid communication with the interior of a tire, the pressure gauge apparatus including a tubular gauge housing substantially coaxial with the valve stem and having a gauge housing connected end secured to the valve stem and a gauge housing free end opposite the gauge housing connected end, the dust shield including a shield tubular body having an open longitudinal shield entry end which receives and passes the gauge housing as the dust shield is slid over the pressure gauge apparatus and sealingly abuts the tire valve stem and an open longitudinal shield exposing end through which the gauge housing free end slides out of the dust shield and is exposed for viewing and which sealingly abuts the gauge housing.

Abstract: A dust shield for fitting around and removably engaging an air pressure gauge apparatus fitted to a tire valve stem protruding from and in fluid communication with the interior of a tire, the pressure gauge apparatus including a tubular gauge housing substantially coaxial with the valve stem and having a gauge housing connected end secured to the valve stem and a gauge housing free end opposite the gauge housing connected end, the dust shield including a shield tubular body having an open longitudinal shield entry end which receives and passes the gauge housing as the dust shield is slid over the pressure gauge apparatus and sealingly abuts the tire valve stem and an open longitudinal shield exposing end through which the gauge housing free end slides out of the dust shield and is exposed for viewing and which sealingly abuts the gauge housing.

Abstract: A tire pressure gauge apparatus for securing to a vehicle tire valve stem mounted to a tire valve stem port in a vehicle tire includes an apparatus housing containing a received air chamber for placement in fluid communication with received air from within a vehicle tire and containing a biasing air chamber containing a fixed quantity of biasing air, the chambers being sealingly separated from each other by a pressure equilibration structure which includes a pressure indicator element, the pressure equilibration structure moving within the housing to alter the relative volumes of the two chambers and thus to equalize the pressures of the two chambers, and the pressure indicator element moving relative to the apparatus housing as the equilibration structure moves to equalize chamber pressures to display a tire pressure reading.

Abstract: A tire pressure gauge apparatus for securing to a vehicle tire valve stem mounted to a tire valve stem port in a vehicle tire includes an apparatus housing containing a received air chamber for placement in fluid communication with received air from within a vehicle tire and containing a biasing air chamber containing a fixed quantity of biasing air, the chambers being sealingly separated from each other by a pressure equilibration structure which includes a pressure indicator element, the pressure equilibration structure moving within the housing to alter the relative volumes of the two chambers and thus to equalize the pressures of the two chambers, and the pressure indicator element moving relative to the apparatus housing as the equilibration structure moves to equalize chamber pressures to display a tire pressure reading.

Abstract: A tire pressure gauge apparatus for securing to a vehicle tire valve stem mounted to a tire valve stem port in a vehicle tire, the valve stem including a tubular stem body containing a valve assembly having a valve opening mechanism, the stem body having a stem connection end fitting sealingly to the tire valve stem port, and having a stem air receiving end, the apparatus including a housing for placement in fluid communication with received air from within the tire contained within the tire valve stem; a structure for opening the valve opening mechanism; and a pressure equilibration structure dividing the housing into a received air chamber and a biasing air chamber and including a pressure indicator element, the pressure equilibration structure and the pressure indicator element being movable relative to the housing, and the pressure indicator element displaying a pressure reading of received air from within the tire which varies with the position of the pressure equilibration structure relative to the hous

Abstract: A tire pressure gauge apparatus for securing to a vehicle tire valve stem mounted to a tire valve stem port in a vehicle tire, the valve stem including a tubular stem body containing a valve assembly having a valve opening mechanism, the stem body having a stem connection end fitting sealingly to the tire valve stem port, and having a stem air receiving end, the apparatus including a housing for placement in fluid communication with received air from within the tire; a structure for opening the valve opening mechanism; and a pressure equilibration structure dividing the housing into a received air chamber and a biasing gas chamber and including a pressure indicator element, the pressure equilibration structure and the pressure indicator element being movable relative to the housing, and the pressure indicator element displaying a pressure reading of received air from within the tire which varies with the position of the pressure equilibration structure relative to the housing; so that alteration of the pressu

Abstract: A plug engagement apparatus for engaging and conducting electricity into an electric plug having plug prongs, the prongs having prong free ends with prong openings includes a prong retaining mechanism for receiving and retaining at least one of the plug prongs; and a slide bolt structure including at least one locking bolt and a locking bolt constraining structure for constraining the locking bolt to slide relative to the prong retaining mechanism and into the prong opening in the plug prong, so that the plug prong is engaged against removal from the prong retaining mechanism, and where the locking bolt constraining structure constrains the locking bolt to slide relative to the prong retaining mechanism and out of the prong opening in the plug prong, so that the plug prong is released and removable from the prong retaining mechanism; where the locking bolt constraining structure includes a mounting structure, so that the locking bolt constraining structure constrains the slide bolt structure to slide relative