Static structures (e.g. – buildings) – Cover with surface water receiver at eave or valley
Reexamination Certificate
2000-02-17
2001-10-16
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Cover with surface water receiver at eave or valley
C248S048100, C248S048200
Reexamination Certificate
active
06301836
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention concerns improvements in and relating to guttering.
To support guttering against distortion it is customary to provide straps linking opposite walls of the gutter channel at spaced intervals along the gutter. Such straps have to be fitted in advance of fixing the guttering to a structure. Indeed for metal guttering it is conventional to weld gutter straps in position.
SUMMARY OF THE INVENTION
An object of this invention is to provide a gutter strap which may be fitted on site and to provide guttering suitable for receiving gutter straps on site.
According to this invention it is proposed that gutters have on opposed side walls formations for engagement with ends of gutter straps, which ends include deformable formations for securement thereof to the gutter side wall formations.
The side wall formations of the gutters are preferably channels formed by inverted generally L-shaped flanges along the gutter side walls. The gutter straps preferably have upturned ends that fit into the channels. Outer surfaces of the upturned ends of the gutter strap are preferably arcuate at least in part.
The deformable formations of gutter strap ends are preferably arranged to lock over the L-shaped flange of the gutter side walls when the strap is in position. Preferably extending inwardly from the gutter strap ends is a deformable web having a flange on one side that will overlie a gutter side wall flange when the deformable web is urged towards the upturned end of the strap from which it extends. The deformable web preferably has on its opposite side a second flange to act as a lever for deforming said web to lock or release the strap. Preferably the strap itself has a protrusion near each end on its top surface to provide a fulcrum for a lever tool, such as a screwdriver, to act on the lever flange of the deformable web.
Preferably the gutter straps of the invention will be manufactured from aluminium.
The invention may provide various advantages over the prior art. In particular, gutter straps of the invention may be fitted on site. There is no need to weld them in position beforehand. They can be easily removed and their spacing is easily adjustable.
REFERENCES:
patent: 2144663 (1939-01-01), Petersen
patent: 3150851 (1964-09-01), Ritchie et al.
patent: 4996809 (1991-03-01), Beard
patent: 5046692 (1991-09-01), Nicholas
patent: 1310167 (1992-11-01), None
patent: 629060 (1949-09-01), None
patent: 2236776 (1991-04-01), None
patent: 2311308 (1997-09-01), None
patent: 2330846 (1999-05-01), None
Friedman Carl D.
Nguyen Chi
Rockey Milnamow & Katz Ltd.
Ultraframe (UK) Limited
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