DOUGLAS JOHN GRATZER
Pilots at Cessna Way, Tucson, AZ
License number
Arizona A2405226
Issued Date
Dec 2016
Expiration Date
Dec 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1900 W Cessna Way W CESSNA WAY, Tucson, AZ 85755
Professional information
Retractable Hanging Apparatus
US Patent:
2007011, May 24, 2007
Filed:
Jan 22, 2007
Appl. No.:
11/625549
Inventors:
Richard Cameron - Marana AZ, US
Stephen Pagnucco - Tucson AZ, US
Douglas Gratzer - Tucson AZ, US
Stephen Pagnucco - Tucson AZ, US
Douglas Gratzer - Tucson AZ, US
International Classification:
A47F 5/08
US Classification:
211113000
Abstract:
A retractable hanging apparatus that includes an engagement structure, such as a bar, upon which an article is hung or secured, with the engagement structure being suspended by one or more lines that are attached to a roller assembly rotatably mounted between two brackets. The roller assembly may be mounted to brackets alone or disposed inside a housing structure. The line or lines are secured to a roller assembly so that the article may be lowered to a particular height or may be elevated as desired. A braking system for preventing sudden retraction of the lines also is described.
Rapid Deployable Structure For Remote Installation
US Patent:
2011008, Apr 14, 2011
Filed:
Oct 9, 2009
Appl. No.:
12/576983
Inventors:
Douglas J. Gratzer - Tucson AZ, US
Assignee:
INTERNATIONAL TOWERS, INC. - Tucson AZ
International Classification:
E04H 12/10, E04H 12/00
US Classification:
5265101, 5274517, 527452
Abstract:
A rapidly deployable structure for remote installation and method of constructing same is disclosed. The structure includes a plurality of vertical support columns topped with guiding structures. Each guiding structure has a narrow top and flares toward a comparatively wider bottom end. The structures have horizontal members including apertures that interface with the guiding structures as the horizontal members are lowered into place.