BRIAN SCOTT GREY
Pilots in Shingobee, MN

License number

Minnesota A2155614

Issued Date

Apr 2016

Expiration Date

Apr 2017

Professional information

Marker Buoy

US Patent:

5096448, Mar 17, 1992

Filed:

Apr 19, 1991

Appl. No.:

7/687690

Inventors:

Brian S. Grey - Walker MN
Greg Christian - Bloomington MN

International Classification:

B63B 2152

US Classification:

441 11

Abstract:

A hollow, elongated tubular member, constructed of flexible resilient material, an inlet-outlet for admitting and discharging air, and including a separate, removable sleeve constructed of material as resilient, or less resilient than the buoy bladder, for its upper portion is adapted for deployment as a portable, large, and versatile marker buoy. The height above the waterline is adjustable by controlling the amount of air therein, the sleeve is removable, interchangable, and is to be printed with the insignia to designate its use. The air pressure in the buoy is used to hold the sleeve and any lightweight device inserted between the two members in position without the use of a fastening device. The method of deploying this marker buoy includes the steps of partial inflation, positioning of the sleeve, attaching ballast weight and or anchor weight, and adjusting to the desired height above the waterline by controlling the volume of air therein.