Jerry Laverne Severson
Engineers at Highbanks Vly Ct, Newark, OH
License number
Colorado 13688
Issued Date
Oct 1, 1975
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
442 Highbanks Valley Ct, Newark, OH 43055
Professional information
Roof Construction And Method Thereof
US Patent:
4351138, Sep 28, 1982
Filed:
Jan 15, 1981
Appl. No.:
6/225298
Inventors:
William J. McMillan - Newark OH
Jerry L. Severson - Newark OH
Jerry L. Severson - Newark OH
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
E04B 700
US Classification:
523094
Abstract:
In a roof wherein the roof has a water impermeable membrane disposed on a roof deck and a closed cell insulation material disposed over the membrane, individual blocks of insulating material are tied together by a water permeable sheet such as a scrim to permit floating of the insulation and a protective layer disposed thereon in the event of ponding.
Insulating Alkenyl Aromatic Polymer Foam
US Patent:
5106882, Apr 21, 1992
Filed:
May 28, 1991
Appl. No.:
7/678272
Inventors:
Kyung W. Suh - Granville OH
Jerry L. Severson - Newark OH
Jerry L. Severson - Newark OH
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C08J 914
US Classification:
521 79
Abstract:
Dimensionally stable alkenyl aromatic thermoplastic synthetic resinous elongate foam bodies having closed noninterconnecting gas-containing cells having an average cell size of 0. 05 to 2. 0 millimeters, a minimum cross-sectional dimension of at least 0. 25 inch, a cross-sectional area of at least 8 square inches, a water vapor permeability not greater than 1. 8 perm inch, a density of from 1. 0 to 5. 0 pounds per cubic foot (16 to 80 g/l), and an absolute dimensional stability of less than 4 percent in any direction when measured by the test designated ASTM D2126/C578 are prepared using 1,1-difluoro-1-chloroethane as a blowing agent and extruding at controlled temperatures.