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:
Jun. 16, 1981
Filed:
Apr. 30, 1979
Michael A Fischer, North Kingstwon, RI (US);
Jerome S Pepi, North Attleboro, MA (US);
Grinnell Fire Protection Systems Company, Inc., Providence, RI (US);
Abstract
A fire-protection sprinkler head with an improved response characteristic achieved by providing a fusible link with a fin having multiple face portions oriented to direct air currents from any of a plurality of orthogonal directions over the fusible region of the link. An embodiment with multiple fins provides an aggregate set of face portions that direct over the fusible region air currents that have X, Y, and Z orthogonal components in both positive and negative senses. Air currents can be directed both by deflecting effects and air foil effects. Preferably the face portions are facets formed integrally with sheet metal body members that form the link. In the preferred embodiment the link and all fins are formed of a pair of similar stampings from sheet metal.