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:
Aug. 28, 2001
Filed:
Jan. 10, 2000
Göran Sundholm, FIN-04310 Tuusula, FI;
Other;
Abstract
The invention relates to a nozzle, preferably for use in sprinklers and spray heads, for spraying extinguishing medium, the nozzle comprising a housing (,), an inlet end (,) and a first conduit (,) leading from the inlet end to a nozzle opening (,) to enable the spraying of the medium through the nozzle. In order that the flow in the nozzle would grow notably with an increase in pressure, the nozzle comprises a second conduit (,) for spraying the medium from the nozzle, a valve element (,) loaded by a spring (,) being arranged in the conduit so as to keep the second conduit closed when the valve element is subjected to a first pressure by said medium, and the valve element being arranged to open said second conduit when the valve element is subjected to a second pressure by said medium, and the second pressure being higher than the first pressure. The invention also relates to a fire fighting installation in which nozzles of the above type are used and in which the pressure source is arranged to increase the flow of the extinguishing medium so that the power produced by the pressure source will not drop directly proportionally to a decrease in pressure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile