Movable or removable closures – Up-and-over type; e.g. – moves from vertical to withdrawn... – With operator
Reexamination Certificate
2005-04-26
2005-04-26
Redman, Jerry (Department: 3634)
Movable or removable closures
Up-and-over type; e.g., moves from vertical to withdrawn...
With operator
C049S203000
Reexamination Certificate
active
06883273
ABSTRACT:
An overhead door assembly in which the door assembly has a vertical closed position and a horizontal opened position, the door assembly including a frame having a horizontal support member and first and second vertical members fixedly mounted to either end of the horizontal member, the vertical members are fixedly mounted to the ground. A one piece door member includes top and bottom horizontal ends and first and second vertical sides and is pivotally mounted to the horizontal member of the frame with the door member being movable from a closed position to an opened position about a pivot point. A hydraulic cylinder is pivotally mounted on a portion of either of the first or second vertical members and the second end of the hydraulic cylinder is pivotally mounted to the door member. The hydraulic cylinder includes a ram movably disposed within the cylinder and transmits an opening and closing force to the door member.
REFERENCES:
patent: 3464161 (1969-09-01), Jonsson
patent: 3468060 (1969-09-01), Mursinna
patent: 4294055 (1981-10-01), Andresen
patent: 4378043 (1983-03-01), Sorenson
patent: 4397115 (1983-08-01), Crawford
patent: 4525953 (1985-07-01), Stutzman
patent: 4643239 (1987-02-01), Wentzel
patent: 5588270 (1996-12-01), Keating
patent: 5749407 (1998-05-01), Brenner et al.
patent: 5784834 (1998-07-01), Stutzman
patent: 519853 (1930-05-01), None
patent: 1584043 (1969-03-01), None
Cottonwood Welding & Manufacturing, Inc.
Redman Jerry
Westman Champlin & Kelly P.A.
LandOfFree
Hydraulically operated overhead door does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulically operated overhead door, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulically operated overhead door will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3427100