DAVID M JACOBSON
Accountancy in Phoenixville, PA
License number
Pennsylvania CA042363L
Category
Accountancy
Type
Certified Public Accountant
Address
Address
Phoenixville, PA 19460
Professional information
Device For Securing Adjacent Segments Of Fibrous Glass Duct Work And The Like And A System Including Said Device
US Patent:
6213522, Apr 10, 2001
Filed:
Dec 31, 1998
Appl. No.:
9/224552
Inventors:
David L. Jacobson - Phoenixville PA
Murray S. Toas - Norristown PA
Thomas A. Cuthbertson - Royersford PA
Robert W. Storey - Downingtown PA
Kurt O. Mankell - Blue Bell PA
Murray S. Toas - Norristown PA
Thomas A. Cuthbertson - Royersford PA
Robert W. Storey - Downingtown PA
Kurt O. Mankell - Blue Bell PA
Assignee:
Certainteed Corporation - Valley Forge PA
International Classification:
F16L 322
US Classification:
285 64
Abstract:
A device and system for securing adjacent segments of duct work formed from fibrous glass duct board insulation and the like is disclosed. The device comprises a corner member having two legs disposed at approximately right angles, each of said legs having oppositely facing and substantially parallel adjacent channels disposed therein to accommodate portions of opposed edges of adjacent segments of duct work. The system includes a plurality of corner members each having two legs disposed at approximately right angles, said legs having substantially parallel and oppositely facing adjacent channels disposed therein to accommodate at least a portion of the opposed edges of adjacent segments of duct work.
Exterior Finishing Panel
US Patent:
6295777, Oct 2, 2001
Filed:
Mar 15, 1999
Appl. No.:
9/268367
Inventors:
Thomas Hunter - Lake Forest Park WA
Randall Elinski - Jackson MI
David Jacobson - Phoenixville PA
Randall Elinski - Jackson MI
David Jacobson - Phoenixville PA
Assignee:
CertainTeed Corporation - Valley Forge PA
International Classification:
E04D 100
US Classification:
52519
Abstract:
A plastic sheet exterior finishing panel is provided which includes an inner layer of foamed plastic material and an outer layer of non-foamed plastic material joined to the inner layer and defining a facing surface formed to convey a desired aesthetic effect. At least the outer layer includes at least one organic, cellulosic additive for enabling the facing surface to be painted or stained. The panel may also be supported by at least one rigid support spine disposed at least along a portion of the length of the sheet. The support spine may be formed integrally with the panel. Alternatively, the support spine may be formed as a separate material having a flexural modulus which is greater than the flexural modulus of the thermoplastic sheet so as to stiffen the panel during handling, installation and use; the separate support spine is fastened or bonded to the rear of the panel, or coextruded.