ROBERT M CHRISTENSEN
Medical Practice at 150 Ct, Jupiter, FL
License number
Florida 305755
Issued Date
Sep 27, 2002
Expiration Date
Dec 1, 2004
Category
Health Care
Type
Emergency Medical Technician
Address
Address
11064 150Th Ct N, Jupiter, FL 33478
Professional information
Air Cannon
US Patent:
6644294, Nov 11, 2003
Filed:
Nov 9, 2001
Appl. No.:
10/035480
Inventors:
Robert N. Christensen - Jupiter FL 33477
International Classification:
F41B 1100
US Classification:
124 77, 124 32
Abstract:
A golf ball projecting air cannon capable of propelling a golf ball or similar projectile with high pressure to reach distances beyond 100 yards. The device employs an electronic circuit providing safety, firing, and reloading controls. The timer and motor provide for the timed activation of a series of microswitches and solenoids to distribute air to various ports at a designated position within the device to force appropriate movements.
Gold Club Speed Indicator
US Patent:
7235020, Jun 26, 2007
Filed:
Feb 9, 2007
Appl. No.:
11/673244
Inventors:
Robert Christensen - Jupiter FL, US
International Classification:
A63B 69/36
US Classification:
473226, 473233
Abstract:
An indicator mechanism or gauge is located in a golf club and provides an indication that the “sweet spot” on a golf club head has been hit and the speed of the club head. The indicator mechanism includes a sensor mounted on the head of a golf club and an indicator positioned on top of the shaft of the club. The sensor detects the impact of the golf ball and hydraulically transmits this information to the indicator mechanism. A visual indicator protrudes from the top of the golf club shaft and provides an indication of the speed of the golf club.