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:
Apr. 13, 2004
Filed:
Aug. 30, 2001
Applicant:
Inventors:
Albert P. James, Jr., Reading, MA (US);
Joseph Reiss, Carlisle, MA (US);
Assignee:
PRI Automation, Inc., Billerica, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 1/316 ; B66B 1/300 ;
U.S. Cl.
CPC ...
B66B 1/316 ; B66B 1/300 ;
Abstract
A horizontal door system is used in conjunction with an interfloor vertical transport system that penetrates an opening in a floor. The vertical transport system has vertical elements that define a fixed horizontal cross-section within the opening, and the door system includes a leading edge profile having a configuration matching the fixed horizontal cross-section of the vertical transport system. The door system is particularly suitable as a fire door system to seal upper and lower fire zones.