Annular lens cleaner

Details Annular lens cleaner Annular lens cleaner

1976-08-13

1977-08-09

Davis, Jr., Albert W.

Heat exchange

Regenerator

Cleaning

165 11, 250338, F28D 1700

Patent

active

040404730

ABSTRACT:
An infrared ray viewing device for an air preheater having a clamping ring that holds a lens in a predetermined position and simultaneously provides an air flow passageway around the periphery of the lens to exhaust a stream of cleaning air radially over the surface of the lens to remove dust deposits therefrom.

REFERENCES:
patent: 3662174 (1972-05-01), McMullen
patent: 3861458 (1975-01-01), Ostrander et al.

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