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:
May. 25, 1999
Filed:
Mar. 31, 1998
Bruce M D'Andrade, Whitehouse Station, NJ (US);
Other;
Abstract
The present invention is a toy water gun for containment and ejection of water which includes a main housing, an ejection nozzle, a bladder housing, a bladder and an outlet connection which runs from the bladder to the nozzle. The expandable bladder is located in the bladder housing and has a first end connected to the outlet connection and has a carriage attachment located at the second end. The bladder carriage attachment is moveable in the bladder housing as the bladder is expanded. In one embodiment, the bladder has a variable diameter, larger at it's front end and smaller at it's back end. In another embodiment, the bladder has a constant diameter with a wall thickness gradient. Combined variable diameters and wall thickness may be used.