Abstract: A lifting mechanism including cantilevered arm means extending from a structural member and vertically movable with respect thereto and having a wheelchair support frame on the remote end of said arm means, and power means operatively associated with said arm means for moving a wheelchair and occupant to and from the vehicle interior and the ground outside the vehicle, and including means for tilting the wheelchair and occupant, prior to lifting, counter to the gravitational forces which induce separation of the occupant from the support frame so as to ensure safety of the occupant during the lifting procedure.

Abstract: A conventional pumping unit is mounted at ground level, to which is attached a hollow sucker rod that extends through a tubing string to the production level of the well. Integral with the tubing string is provided a pump barrel, with communication between the production formation and the tubing string being effected across a ball and seat check valve.Secured to the lower extremity of the hollow sucker rod is an elongated sleeve-like pump housing having a sealing element at the lower extremity thereof establishing a seal between the pump housing and the pump barrel. Intermediate the extremities of the hollow pump body is formed a plurality of elongated slot-like ports extending parallel with the longitudinal axis of the pump body. An elongated traveling piston is located for reciprocal movement within the pump body and is also provided with a seal at the lower extremity thereof for establishing a sealed relationship with the pump barrel.

Abstract: This invention relates to the use of a limited specie of glassy rhyolite, specifically pumicite as a filter aid for the cleaning of solvent in the drycleaning industry. The invention is particularly directed to the new and unexpected results accruing from the use of pumicite for accomplishing extremely low, non-volatile levels in the solvent and for also removing objectionable fatty acids and odor from the solvent while simultaneously making its distillation unnecessary and removing sufficient moisture to give clothes a softer feel, and fewer wrinkles.

Abstract: The conversion assemblage components for imparting to a conventional bicycle an amphibious capability comprising front and rear pontoon assemblies and a power take-off, each of which is readily attached and removable from the conventional bicycle. The pontoon assemblies include front and rear finger which readily adapt such components to detachable connection on the conventional bicycle while the power take-off is detachably connected to the power take-off of the conventional bicycle.

Abstract: An improved adjustable-spray mechanism which includes a button body to be fixedly connected to the exit stem of an aerosol or other fluid container, the button body being characterized by a bore having an end wall. An orifice extends through the end wall from the bore and constitutes a spray outlet to the environment. An adjustable valve is disposed in the bore so as to selectively advance toward or retract from the end wall. Upon introduction of fluid to the bore, a variable fluid spray pattern can be obtained upon adjustment of the valve toward or away from the orifice in the wall.