Richard Merlin Anderson
Burglar Alarm in Tremonton, UT
License number
Utah 6437526-6502
Issued Date
Jul 11, 2008
Expiration Date
Nov 30, 2008
Category
Burglar Alarm
Type
Burglar Alarm Company Agent
Address
Address
Tremonton, UT
Professional information
Cylindrical, Flexible Bearings
US Patent:
4063787, Dec 20, 1977
Filed:
Feb 3, 1977
Appl. No.:
5/765145
Inventors:
Gordon J. Bakken - Brigham City UT
Richard A. Anderson - Tremonton UT
Richard A. Anderson - Tremonton UT
Assignee:
Thiokol Corporation - Newtown PA
International Classification:
F16F 138
US Classification:
308 26
Abstract:
Flexible bearings of the type constructed of alternate, clyindrical layers of rigid material, or shims, and elastomer bonded together are made substantially free of internal, tensile stresses by making the walls of the shims wedge-shaped and by alternating the thin and thick ends of adjacent shims. As the elastomer cures and cools during manufacture of the bearing, it typically shrinks in volume, causing residual tensile stresses in prior-art cylindrical bearings. However, this shrinkage causes the shims of the present invention to move together axially, thus relieving the stress. If there is an odd number of shims, there is no axial displacement of the inner mounting ring of the bearing relative to the outer mounting ring, as a result of elastomer shrinkage. Alternatively, all shims may be initially held out of alignment, so that shrinkage of the elastomer will pull them into alignment.