Mitred grate and drain cover

Details Mitred grate and drain cover Mitred grate and drain cover

2005-09-13

2005-09-13

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

C405S127000, C405S036000, C405S041000, C210S163000, C210S460000

Reexamination Certificate

active

06942425

ABSTRACT:
A drain cover and pipe combination comprises a drain cover including a substantially elliptical frame portion defining a space, the space having an axis substantially normal to the frame, and at least one cross piece located in the space so as to define a plurality of openings in the drain cover. The pipe comprises a substantially tubular member having a longitudinal axis, with the pipe having a substantially elliptical shaped rim at one end thereof with a rim axis which is other than parallel to the longitudinal axis of the tubular member. Securing means are provided for securing the drain cover over the rim of the pipe.

REFERENCES:
patent: 830112 (1906-09-01), Tenold
patent: 961834 (1910-06-01), Barlett
patent: 2550401 (1951-04-01), Boosey
patent: 2749999 (1956-06-01), Schmid
patent: 3587239 (1971-06-01), Feland
patent: 3703194 (1972-11-01), Giordano
patent: 4713179 (1987-12-01), Goedderz
patent: 4873795 (1989-10-01), Spiess
patent: 5102537 (1992-04-01), Jones
patent: 5408706 (1995-04-01), Barnes
patent: 6224292 (2001-05-01), Akalin
patent: 6595721 (2003-07-01), Kincheloe

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