Abstract: A trailer landing gear system and handle assembly including a handle having an engagement bracket portion including a plurality of grooves or a plurality of notches. The handle assembly also includes a pivot bracket pivotably secured to the engagement bracket portion, the pivot bracket including a through-bore arranged to receive a shift shaft of a trailer landing gear assembly, such that the pivot bracket is arranged about the shift shaft and can maintain a constant connection with the shift shaft. The handle assembly further includes a pin secured to a proximate end of the shift shaft, the shift shaft having an imaginary rotational axis wherein the plurality of grooves or the plurality of notches are arranged to engage with the pin such that rotation of the handle about the imaginary rotational axis in a first rotational direction generates a rotational motion of the shift shaft in the first rotational direction.

Abstract: A landing gear system including a landing gear actuator assembly arranged to selectably provide an increased torque output to a cross-shaft adaptor rotationally coupled to a cross-shaft of a trailer landing gear assembly. A rotational engagement mechanism is arranged to, in response to a remote signal, shift a rotational engagement mechanism to selectably couple the cross-shaft adaptor with a light gear set or selectably couple the cross-shaft adaptor with a a heavy gear set.

Abstract: A landing gear system including a landing gear actuator assembly arranged to selectably provide an increased torque output to a cross-shaft adaptor rotationally coupled to a cross-shaft of a trailer landing gear assembly. A rotational engagement mechanism is arranged to, in response to a remote signal, shift a rotational engagement mechanism to selectably couple the cross-shaft adaptor with a light gear set or selectably couple the cross-shaft adaptor with a heavy gear set. The landing gear actuator includes a slip-clutch assembly to dampen, reduce, or eliminate rotational shock caused when retracting or extending the legs of the landing gear system.

Abstract: A coupling apparatus that is attachable to a substantially tubular element having a passageway extending therethrough. The coupling apparatus has a coupling body and at least one adapter. The coupling body has a passageway extending therethrough and at least one leg having at least one annular groove. The adapter has a passageway extending therethrough and a radially extending inward portion for engaging the annular groove on the leg of the coupling body for connecting the adapter to the coupling body. The adapter is connectable to the tubular element for forming a continuous passageway through the coupling apparatus.

Abstract: A push to connect fitting which includes a body portion and a tubular collet at least partially disposed within the body portion, wherein a section of tubing is receivable within the collet. A thread is formed on an inner periphery of the collet, wherein each turn of the thread provides two points of engagement along the longitudinal dimension of the section of tubing.

Abstract: An air distribution apparatus for directing at least two different air pressure supply sources to fill and exhaust at least a first volume of air and a second volume of air. The apparatus includes a housing and a valve assembly that is disposed within the housing. The valve assembly is movable between a first position, wherein a non-regulated air input port is in communication with a first volume of air to inflate the first volume of air while an exhaust port is in communication with a second volume of air to exhaust the second volume of air, and a second position, wherein a regulated air input port is in communication with the second volume of air to inflate the second volume of air while the first volume of air is in communication with the second volume of air to exhaust air from the first volume of air to the second volume of air.

Abstract: A particulate moisture measurement gauge of the type using a resonant electric circuit connected to a diode detector and to an AC signal generator having a frequency near the resonant frequency of the resonant circuit and in which the resonant circuit is electrically coupled to the particulate by a capacitor having the particulate as its dielectric. A probe is formed as a transmission line having a length which is approximately an integral number of one quarter wave lengths long. One end of the transmission line is connected to the circuitry and its opposite, moisture sensing end is immersed in the particulate. Preferably the probe is a rigid, conductive tube with a central rod having a ceramic insulator sealing its moisture sensing end and the circuitry housed in its opposite end.