Bridges – Expansion device
Patent
1994-10-19
1996-10-22
Lisehora, James A.
Bridges
Expansion device
14 771, 254104, E01D 1904
Patent
active
055664148
ABSTRACT:
A method of raising/supporting a bridge or the like on a lower structure involving sliding an upper wedge-shaped pressure receiving member having a slope on its lower face and a wedge-shaped drive member having a slope on its upper face relative to each other on their slopes by drive mechanism for driving the wedge-shaped drive member, to raise the upper face of the upper wedge-shaped pressure receiving member with respect to the lower structure. The method further involves regulating the upper wedge-shaped pressure receiving member and the wedge-shaped drive member from their relative movements after the bridge has been raised. The method further involves removing the drive member after the regulation of the relative movements of the upper wedge-shaped pressure receiving member and the wedge-shaped drive member.
REFERENCES:
patent: 2327297 (1942-04-01), Woodruff
patent: 3390862 (1968-07-01), Schrepfer
patent: 3570207 (1971-03-01), Launay
patent: 3774352 (1973-11-01), Weber
patent: 4184665 (1980-01-01), Queen, Jr.
patent: 4213509 (1980-07-01), Hafner
patent: 4559986 (1985-12-01), Svensson et al.
patent: 4944492 (1990-07-01), Nonaka
Lisehora James A.
Matsuo Engineering Co., Ltd.
LandOfFree
Bridge raising/supporting method and bearing device for the meth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bridge raising/supporting method and bearing device for the meth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bridge raising/supporting method and bearing device for the meth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2349674