Pullbox assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 1, 2009
Grant Date -
N/A
app pub date -
May 11, 2007
filing date -
Jul 21, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pullbox assembly for use in wiring having an upwardly tapered cylindrical main body having a larger diameter base than top for preventing upward movement of the pullbox when installed in the ground due to frost or soil conditions. The taper of the pullbox allows fill to be placed all around the pullbox easily. The pullbox may have a base with apertures, or a ledge at the base's rim, for allowing fill to exit when lifting the pullbox to a desired height in a hole. The fill exiting the base of the pullbox forms a smooth, even base for the pullbox when the pullbox is rotated in the hole. The apertures in the base also act as drainholes for letting water in and out and preventing groundwater from lifting the pullbox after installation. A strong lightweight plastic cover can be used to cover the pullbox for street traffic use.
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