Extendable sleeve for poured concrete deck
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United States of America Patent
Stats
-
Jul 12, 2016
Grant Date -
Jul 23, 2015
app pub date -
Sep 12, 2014
filing date -
Mar 15, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tubular passage for poured concrete decks has an intumescent tube held in a two-part, clamshell base by a bottom clip. A first tube engages the base's top to clamp a funnel shaped, diaphragm seal to the base. The first tube has spaced, radially extending, parallel ridges at predetermined distances from the base. Longitudinal channels separate the ridges. An extension tube has inward extending lugs passing along the channels to engage various ridges when rotated to fix the passage length. The extension engages the base bottom for corrugated deck supports. A cap with repositionable, locating filaments closes either tube.
First Claim
Family
International Classification(s)
- F16L:PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR ....
- A62C:FIRE-FIGHTING
- E04B:GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTIT....
- E04C:STRUCTURAL ELEMENTS; BUILDING MATERIALS
- H02G:INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF CO....
- E04G:SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENT....
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
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