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Universal roof scuttle

Imported: 24 Feb '17 | Published: 06 Jan '04

Steven G. Cermola, Gary P. Dabrowski

USPTO - Utility Patents

Abstract

A roof scuttle is provided which is adapted to be easily installed on any curb on a roof which curb may be existing, pre-formed or formed on the roof at the time of installation. The roof scuttle has a rectangular frame with an outwardly extending drip flange and the bottom of the frame is placed flat on the curb and the inside wall of the frame of the roof scuttle secured to the curb. This eliminates any external fastening of the roof scuttle to the roof which can cause leakage problems and also provides a more secure and safe installation. One embodiment of the roof scuttle uses a wood frame supplied with the roof scuttle which frame is useful for transportation of the roof scuttle and also for installations requiring a wood frame curb. The roof scuttle may be installed over irregular shaped openings, existing roof scuttles, and wide or narrow concrete, wood or metal curbs.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The features of the invention believed to be novel and the elements characteristic of the invention are set forth with particularity in the appended claims. The figures are for illustration purposes only and are not drawn to scale. The invention itself, however, both as to organization and method of operation, may best be understood by reference to the detailed description which follows taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of a roof scuttle of the invention.

FIG. 2 is a perspective view of a roof scuttle of the prior art.

FIG. 3 is an elevational cross-sectional view of FIG. 1 taken along lines

3

3.

FIG. 4 is a cross-sectional view taken along lines

4

4 of FIG. 3 showing the cross-section of a frame member of a roof scuttle of the invention fabricated from sheet metal and including, in phantom, a wood frame which is used in shipping the roof scuttle and which can also be used to frame the roof opening for installation of the roof scuttle.

FIG. 4A shows a plan cross-sectional view taken along lines

4A—

4A of FIG.

4.

FIG. 4B shows a cross-sectional view of another frame member used to make a roof scuttle of the invention.

FIG. 4C shows a cross-sectional view of an extruded frame member used to make a roof scuttle of the invention.

FIG. 5 is a schematic elevational view of a frame member and door of a roof scuttle of the invention.

FIG. 5A is a schematic elevational view of a frame member and door of a roof scuttle of the prior art.

FIG. 5B is a schematic elevational view of the conventional roof scuttle of FIG. 5A installed on a roof with roofing material to waterproof the roof scuttle.

FIG. 6 is a schematic elevational view of a roof scuttle of the invention installed on a concrete curb.

FIG. 7 is a schematic elevational view of a roof scuttle of the invention installed on an extra-wide concrete curb using a wood frame to secure the roof scuttle to the concrete curb.

FIG. 8 is a schematic elevational view of a roof scuttle of the invention installed on a metal roof curb.

FIG. 9 is a schematic elevational view of a roof scuttle of the invention installed on a wood curb.

FIG. 10 is a schematic elevational view of a roof scuttle of the invention retrofitted on an existing roof scuttle curb without disturbing the roof seal.

FIGS. 11A and 12A are perspective views of exemplary anchor straps which may be used to secure the roof scuttle of the invention to a curb on a roof.

FIGS. 11B and 12B are elevational views of a roof scuttle of the invention secured to a roof curb using the anchor straps of FIGS. 11A and 12A.

FIGS.

13A and

13A′ are plan and elevational views, respectively, of another exemplary anchor strap.

FIG. 13B is an elevational view of a roof scuttle of the invention secured to a roof curb using the anchor strap of FIGS.

13A and

13A′.

Claims

1. A roof scuttle for enclosing a roof opening comprising:

2. The roof scuttle of claim 1 which frame member is formed from two pieces of sheet metal which are secured together.

3. The roof scuttle of claim 1 which is formed by extrusion.

4. A roof scuttle for enclosing a roof opening comprising:

5. The roof scuttle of claim 4 wherein the openings are in the shape of slots.

6. The roof scuttle of claim 5 wherein the anchor strap is a flat strap having an angled upper portion for insertion in the frame opening.

7. The roof scuttle of claim 4 wherein the anchor strap is made from wire or rod.

8. A method for installing a roof scuttle to cover a roof opening comprising the steps of:

9. The method of claim 8 wherein the curb is metal.

10. The method of claim 8 wherein the curb is the existing curb from a roof scuttle to be replaced.

11. A method for installing a roof scuttle to cover a roof opening comprising the steps of:

12. The method of claim 11 wherein the openings are slots.

13. The method of claim 12 wherein the anchor strap is a flat strap having an angled upper portion for insertion in the opening.

14. The method of claim 11 wherein the openings are circular.

15. The method of claim 14 wherein the anchor straps are made from wire or rod.

16. The method of claim 8 wherein the roof scuttle further comprises a joiner frame extending around the lower wall of the rectangular scuttle frame, the joiner frame being used to protect the scuttle frame during shipping or to form the raised curb on which the frame is secured wherein the lower wall of the roof scuttle frame is positioned on the upper surface of the joiner frame and the inner wall of the scuttle frame is secured to the curb formed by the joiner frame.