Potato storage vent
OwnerJohn Waldnerinventor
Life of this patent
Estimating the term…
Abstract
A plug for an air vent which fits into the top aperture of the air vent prevents cement flowing into the vent when a concrete floor is laid. The vent has a peripheral protrusion and a top flange. The plug protrusion snap fits into a concave groove in the top of the vent aperture. The flange extends upward an outward from the vent top so the laid concrete floor has a slot communicating with the vent and the vent top is installed below the floor and thus cannot be easily damaged by storing and removal of produce.
Claims8
A floor vent for a storage facility comprising a rectangular top aperture to communicate with the storage facility through a concrete floor and a circular bottom aperture to communicate with a subfloor air duct system, and;
- said floor vent comprising rigid plastic,
- said top aperture comprises parallel spaced apart opposed longitudinal side walls connected by parallel spaced apart opposed transverse end walls, and;
- said longitudinal side walls and said transverse end walls extend downward from said rectangular aperture to said circular bottom aperture, and;
- a plug comprising a body, said body being rectangular having paired opposed parallel longitudinal plug side walls and paired opposed parallel transverse plug end walls connecting said longitudinal plug side walls, and;
- a flange extending peripherally from said body, said flange extending upward from said body at said plug side walls and said plug end walls, and;
- said rectangular body of said plug is dimensioned to fit matingly within said rectangular aperture of said floor vent, whereby when said plug and vent are installed by pouring cement to form a concrete floor,
- said plug is removed to form an aperture in said floor leading downward to said vent, so said vent is embedded with its top below a top surface of said floor.
Dependencies are inferred from the claim text.