Rotatable vacuum flange
First Claim
Patent Images
1. A rotatable vacuum flange comprising:
- a flange ring including an inwardly-extending annular rib having a smaller diameter than the remainder of said flange ring, and a plurality of mounting holes for attachment of said flange ring to another flange ring;
an insert ring mounted within said flange ring, said insert ring including a seal portion and means for vacuum-tight attachment to a vacuum conduit, said insert ring being in direct contact with said annular rib and being axially pressed by said annular rib into contact with a sealing gasket when said flange ring is attached to another flange ring, said insert ring including an outer peripheral surface having a first circumferential groove therein and said flange ring including an inner peripheral surface having a second circumferential groove therein, said first and second grooves being located in opposing alignment when said insert ring is positioned in said flange ring; and
a wire spring positioned in said first and second circumferential grooves between said flange ring and said insert ring for retaining said insert ring in said flange ring and for permitting rotation of said insert ring relative to said flange ring.
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Accused Products
Abstract
A rotatable vacuum flange includes a flange ring having a recess, an insert mounted in the recess in the flange ring, the insert including a seal portion and being adapted for vacuum-tight attachment to a vacuum conduit, and a wire spring positioned between the flange ring and the insert. The wire spring retains the insert in the recess in the flange ring and permits rotation of the insert relative to the flange ring. The flange ring and the insert include grooves located in opposing alignment to receive the wire spring.
28 Citations
4 Claims
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1. A rotatable vacuum flange comprising:
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a flange ring including an inwardly-extending annular rib having a smaller diameter than the remainder of said flange ring, and a plurality of mounting holes for attachment of said flange ring to another flange ring; an insert ring mounted within said flange ring, said insert ring including a seal portion and means for vacuum-tight attachment to a vacuum conduit, said insert ring being in direct contact with said annular rib and being axially pressed by said annular rib into contact with a sealing gasket when said flange ring is attached to another flange ring, said insert ring including an outer peripheral surface having a first circumferential groove therein and said flange ring including an inner peripheral surface having a second circumferential groove therein, said first and second grooves being located in opposing alignment when said insert ring is positioned in said flange ring; and a wire spring positioned in said first and second circumferential grooves between said flange ring and said insert ring for retaining said insert ring in said flange ring and for permitting rotation of said insert ring relative to said flange ring. - View Dependent Claims (2, 3, 4)
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Specification
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Current AssigneeVarian Incorporated (Agilent Technologies, Inc.)
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Original AssigneeVarian Associates, Inc.
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InventorsSabo, David R., Young, Steven P.
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Primary Examiner(s)Reese, Randolph A.
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Assistant Examiner(s)Aberle, Timothy
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Application NumberUS07/783,309Time in Patent Office386 DaysField of Search285/276, 285/321, 285/368, 285/7, 285/318, 285/412, 285/413, 285/414, 285/368, 285/400, 285/305, 285/24, 285/98, 285/280US Class Current285/7CPC Class CodesF16L 23/0286 the shoulder not being form...
