Glass manufacturing – Preform reshaping means – Sheet bending mold
Patent
1978-12-11
1980-09-16
Kellogg, Arthur D.
Glass manufacturing
Preform reshaping means
Sheet bending mold
65349, 417171, 417179, C03B 2302, F04F 522
Patent
active
042227631
ABSTRACT:
A gas jet pump (10) for producing a secondary flow of gas from a primary flow. The jet pump is disclosed as a tubular body (28) having a flow passage into which the primary flow is introduced through a plurality of jet openings (36, 38, 40) in the tubular body. Each jet opening has axial and circumferential components and is tangent with the surface defining the flow passage so as to produce a vortical flow in an axial direction within the body upon introduction of high pressure gas through the openings. The primary flow produces an amplified secondary flow through the tubular body. An annular manifold (22, 24, 26) is mounted on the tubular body to selectively feed the primary flow to the jet openings. The gas jet pump has application in sheet glass treating apparatus (50, 110), and has particular utility in apparatus used to bend sheet glass. A method of manufacturing a gas jet pump is also disclosed.
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