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. 09, 2005
Filed:
Sep. 06, 2002
Thomas Jaworski, Racine, WI (US);
Nathan R. Westphal, Racine, WI (US);
Donald J. Shanklin, Corona, CA (US);
David J. Houser, Racine, WI (US);
Grace C. Petterson, Rancho Palos Verdes, CA (US);
Thomas Jaworski, Racine, WI (US);
Nathan R. Westphal, Racine, WI (US);
Donald J. Shanklin, Corona, CA (US);
David J. Houser, Racine, WI (US);
Grace C. Petterson, Rancho Palos Verdes, CA (US);
S. C. Johnson & Son, Inc., Racine, WI (US);
Abstract
A valve assembly can automatically and essentially totally release aerosol content from an aerosol container in a single burst without the use of electric power or constant manual activation. A diaphragm at least partially defines an accumulation chamber that receives aerosol chemical from the can during an accumulation phase. Once the internal pressure of the accumulation chamber reaches a predetermined threshold, the diaphragm moves, carrying with it a seal so as to unseal an outlet channel, and thereby initiate a spray of the main active chemical. The diaphragm is held in the open position while there is elevated pressure of active in the can and/or due to a latch that activates as the diaphragm moves to the dispensing position.