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:
Jul. 13, 1993
Filed:
Jul. 30, 1992
American Cyanamid Company, Stamford, CT (US);
Abstract
There is provided a flexible, thin, chemiluminescent device comprised of a back sheet having sealed thereto at its edges a windowed front sheet, separation means to divide the internal cavity into a larger and a smaller compartment, the larger compartment containing a contents-releasable receptacle for one part of a two-part chemiluminescent composition and an absorbent material in the larger compartment containing the second part of the composition external to the receptacle, the smaller compartment forming an exit passageway for gases, being in open communication with the larger compartment at its upstream end, and open to the atmosphere through a vent at its downstream end, whereby gases generated during storage and use can exit harmlessly without distorting or inflating the device. The smaller compartment may contain a gas porous component which acts to separate residual liquid from escaping gas thereby preventing unwanted liquid leakage from the chemiluminescent device.