Form-drain filter clamp

Details Form-drain filter clamp Form-drain filter clamp

1995-09-27

1997-06-03

Taylor, Dennis L.

Hydraulic and earth engineering

Drainage or irrigation

Porous or apertured pipe, flume, or tileway

24462, 5216914, 405 36, 405 45, E02B 1100

Patent

active

056347413

ABSTRACT:
A clamping mechanism for removably attaching a fabric to a foraminous element having generally a plank shape. A form-drain is a hollow, foraminous, plank-shaped conduit. The clamp of the invention is a semi-rigid strip of material such as polyvinylchloride. From the strip depend orthogonal projections which form, in a first model, a U-form of shallow definition; this is the "cap" model and is used to capture a fabric between it and the top surface of the form-drain. An alternate embodiment realizes the same strip with depending orthogonal studs (as projections). Projections of both embodiments include mechanisms to impede retrograde motion of the clamp once it is installed on the form-drain. In anticipation of changes to the form-drain, alternate models of the invention have been presented.

REFERENCES:
patent: 4231141 (1980-11-01), Derrick et al.
patent: 4539734 (1985-09-01), Messerschmitt
patent: 4562634 (1986-01-01), Watts
patent: 4799299 (1989-01-01), Campbell
patent: 4858285 (1989-08-01), Dala et al.
patent: 4934540 (1990-06-01), Novak
patent: 4946065 (1990-08-01), Goulter et al.
patent: 5466092 (1995-11-01), Semenza et al.

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