David C Berger

US Patent:

6533191, Mar 18, 2003

Filed:

Dec 7, 1998

Appl. No.:

09/206638

Inventors:

David C Berger - New Braunfels TX
Jeffery W. Henry - New Braunfels TX

Assignee:

New Braunfels General Corporation - New Braunfels TX

International Classification:

B05B 1708

US Classification:

239 22, 239 12, 239 16, 239 17

Abstract:

Amusement devices including a water cannon are described, that include a reservoir member and a channel member disposed therein. A water cannon may also include a partition, or plunger member that partitions the interior of the reservoir and slides along the channel member. A water cannon includes an inlet to fill the reservoir with fluid. When full, a gas inlet, connected to a control mechanism and controlled by an operator releases a burst of gas such as air into the reservoir, thus driving the plunger member down the channel member through the interior of the reservoir and forcing a spurt or projectile of water out of the channel. A musical water fountain system may include a water cannon. The musical water fountain system may include a sound system for playing music, a water cannon system for producing projectiles of water and a lighting system for producing visual effects.

US Patent:

52190250, Jun 15, 1993

Filed:

Apr 10, 1992

Appl. No.:

7/867130

Inventors:

David J. Berger - Flower Mound TX
Thomas G. Whiteley - Houston TX

Assignee:

Otis Engineering Corporation - Dallas TX

International Classification:

E21B 4304

US Classification:

166278

Abstract:

A gravel packing assembly which may be utilized in a method to gravel pack a well through the tubing string. The gravel pack assembly includes a crossover assembly which facilitates the pumping of a gravel slurry into a wellbore, and the taking of the fluid return through the tubing string. A gravel pack screen will be coupled in the assembly beneath the crossover assembly to facilitate the conventional placement of the gravel pack. After the placement of gravel in the well, the crossover assembly may be removed from the well, leaving the screen in place with the gravel pack.