Arthur B Richardson
Engineers in Mill Valley, CA
License number
Colorado 16798
Issued Date
Dec 14, 1979
Renew Date
Dec 10, 1986
Expiration Date
Dec 10, 1986
Type
Professional Engineer
Address
Address
1 Greenwood Way, Mill Valley, CA 94941
Professional information
Moveable Structural Reinforcement System
US Patent:
6374551, Apr 23, 2002
Filed:
Feb 3, 2000
Appl. No.:
09/497414
Inventors:
Kenneth T. Boilen - Greenbrae CA
Arthur B. Richardson - Mill Valley CA
John Hulls - Point Reyes CA
Jean-Jacques Landry - San Francisco CA
Ralph C. Francis - Oakland CA
Arthur B. Richardson - Mill Valley CA
John Hulls - Point Reyes CA
Jean-Jacques Landry - San Francisco CA
Ralph C. Francis - Oakland CA
Assignee:
Ei-Land Corporation - San Francisco CA
International Classification:
E04B 198
US Classification:
521673, 52148, 52149, 522237, 52657, 52291, 526564, 526567, 52693, 160201, 1602291, 160236, 160133, 49199, 49453
Abstract:
A moveable structural reinforcement system is described including a moveable panel adapted to substantially close a building opening, the panel including variable shear load resistance means for regulating the shear stiffness of the building when the panel is in a closed position.
Moveable Structural Reinforcement System
US Patent:
6192637, Feb 27, 2001
Filed:
Feb 25, 1999
Appl. No.:
9/257875
Inventors:
Kenneth T. Boilen - Greenbrae CA
Arthur B. Richardson - Mill Valley CA
Arthur B. Richardson - Mill Valley CA
International Classification:
E04B 198
US Classification:
521673
Abstract:
A moveable structural reinforcement system is described including a moveable panel, a metal frame structure connectable to the frame structure of a building opening, the frame structure including a top support member and lateral supports connected on a first end to the top support member, upper load members disposed on the top support member proximate the lateral supports, bottom load members disposed on the second ends of the lateral supports, and load transfer members disposed substantially diagonally on said panel and adapted to releasably engage the upper and lower load members. The load transfer members providing a substantially continuous load path when the panel is in a closed position and the building or structure is subjected to a lateral force.
Expansion Washer
US Patent:
5180268, Jan 19, 1993
Filed:
Jun 12, 1992
Appl. No.:
7/897918
Inventors:
Arthur B. Richardson - Mill Valley CA
International Classification:
F16B 4300
US Classification:
411536
Abstract:
An expansion washer structure comprises first and second washer elements having projected ramp members which engage. The ramp members have sloped ramp and level segments adjacent to one another which are disposed to progressively engage as the washer elements are rotated with respect to each other. An internal spring is connected between the washer elements to urge them in one rotational direction when normal compressive force on the washer elements is released. When the washer elements are rotated relative to each other, their ramp members move progressively to different positions, causing the washer structure to increase in thickness.