초록 ▼

A drywall taping and texture system for pumping drywall mastic material from a container filled with the drywall mastic material to a work surface includes a pump housing, an air compressor, a tool for applying the drywall mastic material to the work surface, material and control lines, an inflatabl

A drywall taping and texture system for pumping drywall mastic material from a container filled with the drywall mastic material to a work surface includes a pump housing, an air compressor, a tool for applying the drywall mastic material to the work surface, material and control lines, an inflatable bladder, an air release mechanism, and an airway. The pump housing is immersed in the container filled with the drywall mastic material, and the air compressor is connected to the pump housing. The material and control lines are connected between the pump housing and the tool such that there is material and air flow communication, respectively, therebetween. The bladder is mounted within the pump housing between upper and lower valves for controlling the flow of the drywall mastic material. The airway connects the air compressor, the control line, the bladder, and the air release mechanism, such that there is air flow communication therebetween. When the air release mechanism closes, the bladder inflates such that drywall mastic material in the pump housing is pumped through the upper valve, the material line, and the tool to the work surface. When the air release mechanism opens, the bladder deflates such that a partial vacuum is created within the pump and drywall mastic material in the container is pumped through the lower valve into the pump housing.

대표청구항 ▼

[ What is claimed is:] [1.]1. A drywall taping and texture system for pumping drywall mastic material from a container filled with the drywall mastic material to a work surface, the system comprising:a pump housing immersed in the container filled with the drywall mastic material;an air compressor c

[ What is claimed is:] [1.]1. A drywall taping and texture system for pumping drywall mastic material from a container filled with the drywall mastic material to a work surface, the system comprising:a pump housing immersed in the container filled with the drywall mastic material;an air compressor connected to the pump housing;a tool for applying the drywall mastic material to the work surface;a material line connected between the pump housing and the tool such that there is material flow communication therebetween;a control line connected between the pump housing and the tool such that there is air flow communication therebetween;an inflatable bladder mounted within the pump housing between upper and lower valves for controlling the flow of the drywall mastic material;an air release mechanism; andan airway connecting the air compressor, the control line, the bladder, and the air release mechanism, such that there is air flow communication therebetween;wherein when the air release mechanism closes, the bladder inflates and expands radially and vertically relative to the housing such that drywall mastic material in the pump housing is pumped through the upper valve, the material line, and the tool to the work surface,wherein when the air release mechanism opens, the bladder deflates and retracts radially and vertically relative to the housing such that drywall mastic material in the container is pumped through the lower valve into the pump housing.