초록 ▼

A pneumatically energized hand-held vibrating cement float. A rectangular base plate is provided for contacting the surface of wet cement. Centrally disposed intermediate the ends of the base plate is a rotary ball vibrator, extending from which is a handle terminating in a pneumatic coupling. Fluid

A pneumatically energized hand-held vibrating cement float. A rectangular base plate is provided for contacting the surface of wet cement. Centrally disposed intermediate the ends of the base plate is a rotary ball vibrator, extending from which is a handle terminating in a pneumatic coupling. Fluid communication is provided internally of the handle between the coupling and the vibrator. Upon introducing pressurized air to the coupling, the base plate, which is in contact with the cement, vibrates in an amount sufficient to work suspended gravel and the like downward and to provide a finished surface.

대표청구항 ▼

A pneumatically-driven hand-held cement float comprising: a base plate means for contacting said cement having first and second ends defining a longitudinal axis; a single rotary ball vibrator means for imparting vibration to said base plate means in response to said pneumatic device, said vibrator

A pneumatically-driven hand-held cement float comprising: a base plate means for contacting said cement having first and second ends defining a longitudinal axis; a single rotary ball vibrator means for imparting vibration to said base plate means in response to said pneumatic device, said vibrator means being positioned along said longitudinal axis; a vibrator assembly body means carried by said base plate means for carrying said vibrator means; and a handle means interconnected to said body means for supporting said float defining an internal chamber therein in fluid communication with said vibrator means, said end of said handle means being spaced a vertical distance from said base plate means and terminating at a location above and substantially adjacent one of said ends of said base plate means.