Patent ID: 9404301
Filing Date: 2016-08-02
CPC Classification: E05D,E05F,E05Y,E06B

Claim Text:
1. A tilt-up door system for a building having an opening comprising: first and second juxtaposed channel members each having a web and first and second spaced flanges forming a generally U-shaped channel having upper and lower portions extending substantially vertically along opposite sides of the opening; a door having an inside and an outside sized to span the opening having a top, a bottom and at least two vertical side members, the at least two vertical side members each having a horizontally extending pivot shaft tube positioned vertically between the top and bottom of the door; first and second carriages each including a horizontally extending pivot shaft journal and at least two wheels, each of the carriages being arranged for vertical movement along the generally U-shaped channel of respective ones of the first and second juxtaposed channel members; a pair of horizontally extending pivot shafts, each said pivot shaft pivotally connecting one of the pivot shaft tubes to one of the pivot shaft journals; at least one actuator connected to the first and second carriages operable to move the first and second carriages along respective ones of the first and second juxtaposed channel members.