Ronald J Watson

US Patent:

54919371, Feb 20, 1996

Filed:

Feb 22, 1994

Appl. No.:

8/199832

Inventors:

Ronald J. Watson - East Amherst NY
Paul F. Bradford - Amherst NY

Assignee:

R. J. Watson, Inc. - East Amherst NY

International Classification:

E04B 198
E04H 902

US Classification:

521678

Abstract:

A unitary compound earthquake isolation bearing which permits the installation of a compound bearing comprising a sliding bearing and at least one MER as a single unit without special and separate attachment of the MER to the support or superstructure.

US Patent:

46177698, Oct 21, 1986

Filed:

Feb 24, 1984

Appl. No.:

6/583542

Inventors:

Edward R. Fyfe - Burlington, Ontario, CA
William M. Slater - Toronto, Ontario, CA
Ronald J. Watson - Williamsville NY

International Classification:

E02D 2734

US Classification:

52167

Abstract:

An aseismic bearing is disclosed for use in a bridge structure in combination with a bridge support and/or sliding bearing. The aseismic bearing permits horizontal movement of the bridge's support to occur under the bridges superstructure while limiting the transmission of those forces to the superstructure. Also disclosed is a displacement control device for limiting relative movement between the two parts of the bridge.

US Patent:

20060193542, Aug 31, 2006

Filed:

Feb 28, 2005

Appl. No.:

11/066218

Inventors:

Paul Bradford - Willimsville NY, US
Ronald Watson - E. Amherst NY, US

International Classification:

F16C 41/00
F16C 27/06

US Classification:

384036000

Abstract:

A high load structural bearing primarily comprising a high strength elastomer and a housing with top closure plate. The housing is composed of sidewalls and is attached to a bottom base plate. The elastomeric pad has its top edge chamfered to produce a void that allows the pad to expand while being compressed without being squeezed into the gap between the sidewalls and the closure plate. The high load elastomer and surrounding housing are designed such that the elastomer is loaded in two phases in a controlled, predictable fashion. In the first phase the elastomer expands unrestrained on its lateral sides until it makes contact with the sidewalls. In the second phase the elastomer vertical compression increases and subsequently tensile stresses existing at the end of the first phase are mitigated to a predetermined level via lateral confinement from the housing sidewalls.