Coherent light generators – Particular active media – Gas
Patent
1988-05-26
1990-02-06
Scott, Jr., Leon
Coherent light generators
Particular active media
Gas
372 37, 372 58, H01S 303
Patent
active
048993638
ABSTRACT:
An improved drive coupling and bearing assembly for a recirculation fan in a long-life gas laser unit includes a plurality of frictionless gas bearings which allow journals supporting the recirculation fan to ride on a cushion of compressed laser gas. Mechanical power is transmitted from an external source to the recirculation fan through a magnetic coupling assembly, so that the walls of the sealed laser unit do not have to be breached. Additional structure is provided for spacing the driven magnet in the magnetic coupling assembly from the interior wall of the long-life laser unit.
REFERENCES:
patent: 4096449 (1978-07-01), Foster
patent: 4099143 (1978-07-01), Foster
patent: 4245194 (1981-01-01), Fahlen et al.
patent: 4567597 (1986-01-01), Mandella
Derrickson Stephan G.
Golobic Robert A.
Murray Gordon A.
Jr. Leon Scott
The Spectranetics Corporation
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