WILLIAM EDWARD CULLEN
Pilots at Cleveland Ave, Mill Valley, CA
License number
California A2551329
Issued Date
Sep 2016
Expiration Date
Sep 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
239 Cleveland Ave, Mill Valley, CA 94941
Professional information
Seismic Hold Down Device
US Patent:
5125761, Jun 30, 1992
Filed:
Apr 9, 1990
Appl. No.:
7/506326
Inventors:
William E. Cullen - Mill Valley CA
James E. Wilson - Novato CA
James E. Wilson - Novato CA
International Classification:
B25G 336
US Classification:
403391
Abstract:
A system for splicing rods to connect a shear wall (12) to a concrete foundation (6). The system includes a hold down device (2) coupling a first rod (4) extending upwardly from the foundation with a second rod (8) suspended downwardly from the top (10) of the shear wall. The hold down device includes a body member (14) having a rod support (22) disposed on one side of the rods and two pairs of arms (32, 34) through which the rods extend. A cam element (54, 56) is disposed within the body member for positioning the rods within the body member. A securing bolt (18) extends through the rod support for securely retaining the cam element in position.