James E Echternacht

6579051, Jun 17, 2003

Apr 30, 2001

09/843738

James E. Echternacht - Santa Barbara CA, 93101

B62B 306

414 11, 269905, 280 4324, 280 797

A carriage for the transport and installation of heavy doors and other construction panels includes a door-holding frame that is pivotally attached to a wheeled chassis. Independent drive mechanisms provide accurate control over the elevation, tilt, and roll of a door panel held by the frame, and effect a precisely controlled, lateral movement of the panel relative to the frame.

57623481, Jun 9, 1998

Sep 9, 1996

8/707865

James Echternacht - Santa Barbara CA

Echternacht Construction Corp. - Santa Barbara CA

B62D 2100

280 797

A carriage has a wheeled base with an articulated frame for supporting a construction panel in a multitude of operator-defined orientations during transportation, fitting and installation of the panel. The frame and a construction panel secured to the frame are movable relative to the base between (a) a reclined transport position in which the center of mass of the construction panel overlies the area bounded by the wheels of the base to enhance stability of the carriage during transportation of the panel, and (b) an upright installation position in which the center of mass of the construction panel is located forwardly of the wheels of the base. In the installation position of the frame, roller bearings below the frame transfer the weight of a construction panel to the surface on which the carriage operates to enhance stability and facilitate rolling movement of the carriage. Independently operable elevators are provided on the frame for uniformly elevating the base and the frame and a construction panel secured to the frame while maintaining contact between the roller bearings and the operating surface. The elevators alternately are operable differentially for adjusting the angular orientation of the frame and construction panel secured to the frame.