The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2013
Filed:
Aug. 17, 2010
James P. Stahl, Sr., Stockton, NJ (US);
James P. Stahl, Jr., Princeton Junction, NJ (US);
Julio Lopes, Dunellen, NJ (US);
Paul Gandolfo, Doylestown, PA (US);
James P. Stahl, Sr., Stockton, NJ (US);
James P. Stahl, Jr., Princeton Junction, NJ (US);
Julio Lopes, Dunellen, NJ (US);
Paul Gandolfo, Doylestown, PA (US);
Specified Technologies Inc., Someville, NJ (US);
Abstract
A relatively inexpensive bushing easily installed extending through walls, particularly, gypsum board membrane walls for providing firestopping around a limited number of linear penetrating members such as cables or wires. This grommet construction includes first and second half sections for facilitating attachment around cables more easily. A split internal seal preferably of resilient foam material is positioned within a split mechanical shell which facilitates placing of the bushing around penetrating members prior to placement thereof through walls or after positioned thereof penetrating through a panel such as wallboard. A split mechanical shell with a two-piece foam insert retained within a bore extending therethrough can be formed as two separable half cylindrical shells. Barbs are included on the outer portion of the shell to facilitate mounting thereof. The foam firestopping seal portion can be intumescent.