Abstract: A portable wheelchair including a seat assembly having a seat and a back rest, as well as a footrest having at least one guiding wheel. The seat assembly and the footrest are selectively secured between a first wheel and a second wheel, the first wheel including a first tire mounted on a first rim and the second wheel including a second tire mounted on a second rim. The seat assembly is secured to the first wheel by a first cross-brace and the seat assembly is secured to the second wheel by a second cross-brace. The first cross brace is coupled to the first wheel by a first bearing assembly slidably mounted to the first rim and a second bearing assembly slidably mounted to the first rim, wherein the first bearing assembly and the second bearing assembly are connected by a first spoke member.

Abstract: A portable wheelchair including a seat assembly having a seat and a back rest, and a footrest having at least one guiding wheel. The seat assembly and the footrest are selectively secured between a first wheel and a second wheel. The first wheel includes a first tire mounted on a first rim and the second wheel includes a second tire mounted on a second rim, wherein a first cross-brace releasably couples the seat assembly to the first wheel and a second cross-brace releasably couples the seat assembly to the second wheel. The first cross brace includes a first motor and the second cross brace includes a second motor, wherein the first motor and the second motor are respectively coupled to the first wheel and the second wheel to facilitate movement of the wheelchair.

Abstract: A selectively attachable closure for a container. The closure includes a valve member connected to a restraining member by structure for causing the restraining member to be drawn toward the valve member. The closure further includes a central expandable member positioned between the valve member and the restraining member. The central expandable member is caused to outwardly expand when the restraining member is drawn toward the valve member. The central expandable member includes a hollow body positioned about the restraining member so that the central expandable member is supported by the restraining member. In use, the restraining member and the central expandable member are passed within a hole formed in a container while the valve member is seated on a periphery of the hole to support the closure, and the restraining member is drawn toward the valve member causing the central expandable member to outwardly expand and secure the closure within the hole.

Abstract: A primary pan assembly for use in conjunction with an air conditioning system, which includes two primary plates and a silicon rubber cover which are assembled together to form the primary pan which includes a lower cylinder to be disposed at the assembled pan during installation thereof so as to pass a pair of built drain pipes through the lower cylinder, whereby the plastic primary pan can easily be assembled with the silicone rubber plate and tightly attached to the pair of built drain pipes.

Abstract: The present invention relates to a sanitary chemical spray apparatus mounted to a front bumper of a dump truck, which comprises an extensible jack member and a spray gun including a guide roller and a plurality of nozzles disposed at one end thereof for inserting into a trash container through a door or disposed at the front upper portion of a side wall thereof. The nozzles of the apparatus can be used to spray chemicals within the trash container after removing the solid waste materials therefrom during a sanitary cleaning operation.

Abstract: A trash receptacle includes a trash container having a top which can be opened, an aperture disposed in one of the side walls of the container, a door mounted by a hinge to close said aperture, the door biasing mounted to the interior of the side wall to open into the container, and spring bias means operatively associated with the door for holding the door in a closed position, whereby a chemical spray apparatus mounted to a dump truck can be slidably inserted through the aperture in the trash container against the bias of the door and then retracted from the aperture, with the door automatically closes.

Abstract: An improved primary pan for use in an air conditioning system which includes a C-shaped plastic pan having a raised portion or a rail disposed on the outside surface of the bottom thereof, a channeled supporting bracket having a plurality of elongated apertures for engaging the raised portion of the rail of the plastic pan, and a pair of fan covers having a channel disposed on the outside surface of the top and a circumferential raised portion disposed around a lower outlet thereof for effectively mounting to bracket and separating from the supporting bracket to the plastic pan with only two pairs of screws.