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. 07, 1981
Filed:
Nov. 06, 1978
Arthur I Appleton, Indian Creek Village, FL (US);
Other;
Abstract
The cover of a housing has one or more projections which extend into a slot or respective slots in the main body of the housing. Each projection is spaced from the walls defining the slot so as to form a passageway from the interior of the housing to the outside. This passageway is sufficiently long and narrow as to cool burning gases initiated within the housing by an arc, the cooling being sufficient to extinguish the flame before it reaches the exterior of the housing. The passageways completely encircle the interior compartment of the housing so as to provide sufficient passageway area to relieve the internal pressure caused by an explosion within that compartment sufficiently that plastic can be used for the material of the housing.