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. 16, 2013
Filed:
Jun. 08, 2011
Scott Frank, Provo, UT (US);
Scott Frank, Provo, UT (US);
Other;
Abstract
A reusable, pneumatic paint grenade that includes a dashpot timing mechanism for sudden release of compressed air that ruptures a frangible housing to disperse a dyed liquid or airsoft pellets after the paint grenade is thrown. The dashpot further comprises a plunger located in a cylindrical body. A lever in contact with the plunger of the dashpot forces the plunger downward to puncture a cartridge of compressed air with a sharp structure disposed between the plunger and the cartridge. The compressed air is prevented from escaping while the sharp structure remains in the cartridge. Once the lever is released, the plunger is forced into substantially its original position by a biasing mechanism and the force exerted by the air pressure within the cartridge. The cylindrical body can be filled with a viscous liquid to further slow movement of the plunger.