Water gun
US5799828A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1997 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Mar 3, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41B9/0012
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A water gun which utilizes a piston movable within a piston cylinder by a manually operated handle. Movement of the piston to a retracted position within the piston cylinder will result in supplying water from a water reservoir into the piston cylinder. Moving of the piston in an inward position within the piston cylinder will result in expelling water from the piston cylinder into an elastic bladder. The quantity of water being expelled from the piston cylinder within the elastic bladder will cause the elastic bladder to expand substantially, and at the point of full inward motion of the piston, the handle will come into contact with a discharge valve which will be moved to cause release of the water that is confined within the elastic bladder. This water is to be expelled through a nozzle to be emitted into the ambient in a form of a stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.