Combined smoke gasket and intumescent expanding seal device for sliding elevator doors and the like
Description
FIG. 1 is a front perspective view, viewed from above, of a combined smoke gasket and intumescent expanding seal device for elevator doors and the like, embodying my new design;
FIG. 2 is a rear perspective view thereof; and
FIG. 3 is a horizontal section view taken along the line 3--3 of FIG. 1. A bottom view of the seal device corresponds substantially to the mirror image of the top thereof seen in FIGS. 1 and 2.
Referenced Cited
Patent History
Patent number: D279409
Type: Grant
Filed: Nov 23, 1982
Date of Patent: Jun 25, 1985
Inventor: George A. Allen, Jr. (Midlothian, VA)
Primary Examiner: A. Hugo Word
Law Firm: Mason, Fenwick & Lawrence
Application Number: 6/444,687
Type: Grant
Filed: Nov 23, 1982
Date of Patent: Jun 25, 1985
Inventor: George A. Allen, Jr. (Midlothian, VA)
Primary Examiner: A. Hugo Word
Law Firm: Mason, Fenwick & Lawrence
Application Number: 6/444,687
Classifications
Current U.S. Class:
D25/74