Roof rake system

Tools – Shingle tool

Reexamination Certificate

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Details

C254S021000

Reexamination Certificate

active

07040195

ABSTRACT:
A roof rake system comprises a handle having an upper end and a lower end. A head has an interior region, an exterior region, and an intermediate region. The interior region securely receives the lower end of the handle. The exterior region is cylindrically shaped over the majority of its extent as an extension of the intermediate region and with a free end. A flat plate is in a rectangular configuration with a leading edge adjacent to the free end and a long trailing edge adjacent to the intermediate. A plurality of broad V-shaped projections are at the leading edge of the plate forming laterally spaced crests with laterally spaced roots there between. The intermediate region is curved with the exterior region and plate being in a plane and located entirely beneath the lower end of the handle during operation and use.

REFERENCES:
patent: 237891 (1881-02-01), Musselman
patent: 764401 (1904-07-01), Wegner
patent: 1218145 (1917-03-01), Whittier
patent: 1805289 (1931-05-01), Kuno
patent: D236872 (1975-09-01), Froehlich
patent: 4098506 (1978-07-01), Gaiser
patent: 4664381 (1987-05-01), Aaron
patent: 4890679 (1990-01-01), Jacobs
patent: 5280676 (1994-01-01), Fieni
patent: 5447289 (1995-09-01), Callahan
patent: D392867 (1998-03-01), Gracy et al.
patent: 5733204 (1998-03-01), Carrara
patent: 5836222 (1998-11-01), Harpell
patent: 5971653 (1999-10-01), Harpell
patent: 6412569 (2002-07-01), Webb

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