Pygmy current meter with magnetic switch

Details Pygmy current meter with magnetic switch Pygmy current meter with magnetic switch

2005-12-20

2005-12-20

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Oceanology

C073S861850, C073S170080

Reexamination Certificate

active

06976393

ABSTRACT:
An apparatus for measuring fluid velocity includes a generally Y-shaped yoke including a base and first and second forks, the first and second forks including through holes at ends thereof; a bucket wheel supported between the first and second forks of the yoke; a first shaft that passes through the through hole in the first fork and supports one side of the bucket wheel; a second shaft that passes through the through hole in the second fork and supports the other side of the bucket wheel, the second shaft rotating with the bucket wheel and including a magnet mounted therein; the second fork of the yoke including an opening for receiving a reed switch assembly, the opening communicating with the through hole in the second fork, the magnet on the second shaft being aligned with the opening whereby when the second shaft rotates the magnet passes by the opening; and a reed switch assembly mounted in the opening in the second fork of the yoke.

REFERENCES:
patent: 2614425 (1952-10-01), Falk
patent: 2813424 (1957-11-01), Liepmann et al.
patent: 3788142 (1974-01-01), Goransson
patent: 4122714 (1978-10-01), Kobayashi et al.
patent: 4840062 (1989-06-01), Futrell, II
patent: 4866985 (1989-09-01), Futrell, II
patent: 6618680 (2003-09-01), Ross et al.

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