公开(公告)号：US3150819A

公开(公告)日：1964-09-29

申请号：US20083762

申请日：1962-06-07

Applicant: VARIAN ASSOCIATES

Inventor： ABRAMS IRWIN L ,  HARRA DAVID J ,  MICHAEL RIVERA

IPC: H01J41/16 ,  H01J41/20

CPC classification number: H01J41/20 ,  H01J41/16

公开(公告)号：US3924967A

公开(公告)日：1975-12-09

申请号：US45373974

申请日：1974-03-22

Applicant: VARIAN ASSOCIATES

Inventor： HARRA DAVID J

IPC: F04B37/02 ,  F04B37/08

CPC classification number: F04B37/08

Abstract: A sublimation type vacuum pump includes a gas permeable condensing structure surrounding the source of getter material to be sublimed. The condensing structure is affixed to a flange assembly for sealing the getter and condensing structure within an evacuable envelope to be pumped. Fluid coolant conduits pass through the flange and into heat exchanging relation with the condensing structure for cooling the condenser and flange. In one embodiment the side wall of the condensing structure includes a plurality of telescoped cylinders and in a second embodiment the side walls of the condensing structure includes a circular array of condensing louvers.

公开(公告)号：US3662154A

公开(公告)日：1972-05-09

申请号：US3662154D

申请日：1970-10-19

Applicant: VARIAN ASSOCIATES

Inventor： HARRA DAVID J

IPC: G01N25/02 ,  H05B3/00 ,  F22B1/28

CPC classification number: G01N25/02 ,  H05B3/00

Abstract: A sublimator is described for subliming a material such as titanium. The sublimator comprises a generally spherical hollow body of the material to be sublimated enclosing a source of heating energy. The wall of the hollow body is uniformly thick over its full extent, and the configuration of the heat source is correlated to the inner surface of the spherical body to provide a generally uniform rate of total heat energy absorption at substantially all portions of the body. The result is that the body sublimates uniformly from its full outer surface, and at the time in which any one portion of the body is fully dissipated, i.e., when an aperture appears through the body, the remaining portion of the body is also substantially dissipated.

Abstract translation: 描述了升华器以升华钛材料。 该升华器包括一个大体上球形的待升华材料的空心体，其包围加热能量源。 中空体的壁在其全部范围内均匀地厚，并且热源的构造与球体的内表面相关，以在身体的基本上所有部分处提供总体上均匀的总热能吸收率。 结果是身体从其完整的外表面均匀地升华，并且在身体的任何一部分完全消散的时候，即当通过身体出现孔时，身体的剩余部分也基本消散 。

公开(公告)号：US3400349A

公开(公告)日：1968-09-03

申请号：US52060666

申请日：1966-01-14

Applicant: VARIAN ASSOCIATES

Inventor： HARRA DAVID J

IPC: H01F7/02 ,  H01J41/20

CPC classification number: H01F7/0205 ,  H01J41/20