Mark E Williams
Land Surveyors in Henderson, NV

License number
Utah 157695-9925
Issued Date
Nov 1, 1980
Expiration Date
Dec 31, 1999
Category
Engineer/Land Surveyor
Type
Engineer in Training - Obsolete
Address
Address
Henderson, NV

Professional information

Mark Williams Photo 1

Large-Scale Watercraft Storage System

US Patent:
2009030, Dec 10, 2009
Filed:
Mar 2, 2007
Appl. No.:
12/281327
Inventors:
Christian F. Rosenberg - St. Thomas VI, US
William C. Maffett - Cookeville TN, US
Brian D. Maffett - Cookeville TN, US
Mark E. Williams - Henderson NV, US
Assignee:
MAFFSTACK, LLC - Cookeville TN
International Classification:
B63C 15/00, B63C 3/12, B65G 1/04, B63C 3/06
US Classification:
414281, 405 3, 14 713
Abstract:
In a watercraft storage system a “wishbone” or U-shaped cradle liftable and rotatable by an overhead crane comprises adjustable air filled hull supports to either side of a boat hull and a keel support toward the stem of the watercraft. The cradle central opening clears a cantilever storage rack support beam assembly allowing the watercraft lo be lowered onto or raised from the cantilever storage rack support beam assembly by an overhead traveling crane. To substantially reduce any longitudinal swaying of the cradle and watercraft during raising and lowering, a system or diagonal anti-sway bracing cables that automatically retract and extend is employed. In the preferred embodiment, the cradle is lowered into a water-filled channel within the storage structure to re-float the watercraft. A watercraft to be stored can be brought into the channel which contains alignment means to accurately position the watercraft over the cradle. The cradle can thereby be lifted properly, moved to a storage rack location and accurately stored on the cantilever storage rack support beam assembly.


Mark Williams Photo 2

Large-Scale Watercraft Storage System

US Patent:
2012011, May 10, 2012
Filed:
Nov 3, 2011
Appl. No.:
13/288806
Inventors:
Christian F. Rosenberg - St. Thomas VI, US
William C. Maffett - Cookeville TN, US
Brian D. Maffett - Cookeville TN, US
Mark E. Williams - Henderson NV, US
Assignee:
MAFF-STACK, LLC - Cookeville TN
International Classification:
B63C 3/06, B63C 15/00
US Classification:
405 3
Abstract:
A watercraft storage system, a ‘wishbone’ or U-shaped cradle, liftable and rotatable by an overhead crane, comprises adjustable air filled hull supports to either side of a boat hull and a keel support toward the stem of the watercraft. The cradle central opening clears a cantilever storage rack support beam assembly allowing the watercraft to be lowered onto or raised from the cantilever storage rack support beam assembly by an overhead traveling crane. To substantially reduce any longitudinal swaying of the cradle and watercraft during raising and lowering, a system of diagonal anti-sway bracing cables that automatically retract and extend is employed. In the preferred embodiment, the cradle is lowered into a water-filled channel within the storage structure to re-float the watercraft. A watercraft to be stored can be brought into the channel which contains alignment means to accurately position the watercraft over the cradle.