DAVID M ARTHUR
Broker in Phoenix, AZ
License number
Nevada B.0023372.INDV
Issued Date
Mar 14, 2007
Expiration Date
Mar 31, 2018
Category
Real Estate Appraisers
Type
Broker
Address
Address
Phoenix, AZ 85018
Professional information
Solar Radiation Collector And System For Converting And Storing Collected Solar Energy
US Patent:
4010614, Mar 8, 1977
Filed:
Nov 13, 1974
Appl. No.:
5/523262
Inventors:
David M. Arthur - Phoenix AZ
International Classification:
F03Q 702
US Classification:
60641
Abstract:
A system is disclosed for converting solar radiation into electricity and for storing energy generated in excess of demand. The system includes a large circular collector fabricated from modular elements. The collector is combined with a concentrator and boiler for producing steam. The steam produced is used to drive an electrical generator and a hydraulic pump. When system demand is less than the capacity of the generator, the excess energy is used to drive the pump. The pump transports water from a low level reservoir to an elevated reservoir, thereby storing potential energy. Later, when demand increases, water from the elevated reservoir is used to drive a second electrical generator. The circular collector is mounted on tracking apparatus which automatically aims the collector to focus on the sun and receive maximum solar radiation on its surface.
Managing Member At T.a.p.
Position:
Managing Member at T.A.P.
Location:
Phoenix, Arizona Area
Industry:
Paper & Forest Products
Work:
T.A.P.
-
Managing Member
Owner/Operator At White Hills Water Company, Inc.
Position:
Owner/Operator at White Hills Water Company, Inc.
Location:
Phoenix, Arizona Area
Industry:
Utilities
Work:
White Hills Water Company, Inc.
-
Owner/Operator
Method Of Attaching A Rail And A Tie Plate To A Cross Tie
US Patent:
4203193, May 20, 1980
Filed:
Nov 15, 1978
Appl. No.:
5/960961
Inventors:
David M. Arthur - Phoenix AZ
International Classification:
B23P 1900
US Classification:
29526R
Abstract:
A spike retainer which may be forcibly driven through an aperture in a tie plate into a wood cross tie includes an upper lip for engaging a flanged base of a rail supported by the tie plate. A movable wedge attached to the spike retainer is forced between the cross tie and the tie plate when a spike is forcibly inserted into the spike retainer, thereby clamping the tie plate and the flanged base of the rail between the upper lip and the movable wedge. The spike retainer is initially inserted into a pre-drilled hole in the cross tie by means of an insertion tool having a channel which permits the spike retainer to be forcibly inserted into the hole without engaging the movable wedge.
Railroad Spike Retainer
US Patent:
3964680, Jun 22, 1976
Filed:
Feb 3, 1975
Appl. No.:
5/546264
Inventors:
David M. Arthur - Phoenix AZ
International Classification:
E01B 912
US Classification:
238366
Abstract:
A railroad spike retainer is disclosed which may be driven into a railroad tie together with the spike it retains. The retainer exerts a retention force both against the spike to prevent its regression from the retainer and also against the tie to prevent the regression of the retainer itself from the tie.
David M Arthur, Phoenix AZ - Lawyer
Address:
3219 E Camelback Rd STE 548, Phoenix 85018
Licenses:
Arizona - Active 2000
Education:
BROOKLYN