Chamber for housing animals during anaesthetic procedures
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United States of America Patent
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Mar 1, 2016
Grant Date -
Mar 5, 2015
app pub date -
Nov 10, 2014
filing date -
Sep 10, 2008
priority date (Note) -
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Abstract
The present invention provides a chamber having at least one operator hand access port; the port comprising a port aperture located within the chamber wall; and at least two flexible non-resilient lightweight sealing gas-tight flaps(SFs), disposed the same plane of the port aperture in an overlapping manner, entirely enclosing the port aperture; each of the SFs is defined by a port aperture edge and chamber edges; the chamber edges are anchored to the chamber wall along more than half of the perimeter of the flap, at a distance from the center of the port greater than the radius of the port and beyond its perimeter; the port aperture edge of each flap is stretched across an entire chord of the port aperture; stretched port apertures edges define an interior access zone, disposed the same plane of the port aperture, characterized solely by the port aperture edges.
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