William A Allinger

US Patent:

6397546, Jun 4, 2002

Filed:

Aug 16, 2000

Appl. No.:

09/640336

Inventors:

Gregory Malarkey - Portland OR
William Allinger - Portland OR

Assignee:

Herbert Malarkey Roofing Co. - Portland OR

International Classification:

E04D 128

US Classification:

52555, 52557, 52559, 52560, 5274519, 156259

Abstract:

Laminated shingles are manufactured from roll stock roofing material that is wider than that used to make similar laminated shingles. The roll stock includes longitudinal edge strips having a reduced thickness. The roll stock is cut into strips of tabbed top sheets and backing sheets. The strips of material used for the backing sheets are at once wider than commonly used in the industry, and include the longitudinal edge strips of reduced-thickness material. Because the backing sheet is wider two rain seal strips are laid down on the backing sheet prior to being laminated to the tabbed top sheet. The backing sheets are laminated to the tabbed top sheets with the longitudinal edges aligned. The wider backing sheet provides a substantially wider nail zone. In addition, since it allows for a second rain seal strip, provides somewhat more protection against leakage. The portion of the backing sheet that comprises the added width is relatively thinner than the remaining portions of the sheet.

US Patent:

61452653, Nov 14, 2000

Filed:

Feb 17, 1999

Appl. No.:

9/251534

Inventors:

Gregory Malarkey - Portland OR
William Allinger - Portland OR

Assignee:

Herbert Malarkey Roofing Company - Portland OR

International Classification:

E04D 128

US Classification:

52555

Abstract:

Laminated shingles are manufactured from roll stock roofing material that is wider than that used to make similar laminated shingles. The roll stock includes longitudinal edge strips having a reduced thickness. The roll stock is cut into strips of tabbed top sheets and backing sheets. The strips of material used for the backing sheets are at once wider than commonly used in the industry, and include the longitudinal edge strips of reduced-thickness material. Because the backing sheet is wider two rain seal strips are laid down on the backing sheet prior to being laminated to the tabbed top sheet. The backing sheets are laminated to the tabbed top sheets with the longitudinal edges aligned. The wider backing sheet provides a substantially wider nail zone. In addition, since it allows for a second rain seal strip, provides somewhat more protection against leakage.