US Patent No. 10,335,880

RACKS FOR HIGH-TEMPERATURE METAL PROCESSING


Patent No. 10,335,880
Issue Date July 02, 2019
Title Racks For High-temperature Metal Processing
Inventorship Maria Bozena Winnicka, Euclid, OH (US)
Scott Jeffrey Volchko, Hinckley, OH (US)
Stan Wojciechowski, Kirtland, OH (US)
Abhishek Bhattacharyya, Newton, MA (US)
Assignee H.C. STARCK INC., Newton, MA (US)

Claim of US Patent No. 10,335,880

1. An apparatus for receiving and supporting one or more components during processing thereof at a process temperature greater than approximately 1000° C., the apparatus comprising:a first shelf (i) comprising a first refractory metal having a melting point greater than the process temperature and (ii) defining therethrough a plurality of apertures, each aperture being threaded through at least a portion of its thickness;
a plurality of first support posts, each first support post (i) comprising a second refractory metal having a melting point greater than the process temperature, (ii) having a threaded lower end for engagement with a threaded aperture of the first shelf, and (iii) defining a support collar proximate an upper end opposite the threaded lower end, a lateral dimension of the first support post above the support collar being smaller than a lateral dimension of the first support post below the support collar;
a second shelf (i) comprising a third refractory metal having a melting point greater than the process temperature and (ii) defining therethrough a plurality of apertures, each aperture of the second shelf being configured to receive the upper end of one of the first support posts such that a portion of the second shelf proximate each aperture thereof rests upon the support collar of the first support post received in the aperture,
a third shelf (i) comprising a fourth refractory metal having a melting point greater than the process temperature and (ii) defining therethrough a plurality of apertures; and
a plurality of second support posts, each second support post (i) comprising a fifth refractory metal having a melting point greater than the process temperature, (ii) having a threaded lower end for engagement with a threaded aperture, (iii) defining a support collar proximate an upper end opposite the threaded lower end, a lateral dimension of each second support post above the support collar being smaller than a lateral dimension of each second support post below the support collar, and (iv) defining a dowel pin mount through the upper end thereof above the support collar,
wherein (A) the upper end of each second support post is receivable within an aperture of the third shelf such that (i) a portion of the third shelf proximate each aperture thereof rests upon the support collar of the second support post received in the aperture, and (ii) the dowel pin mount of each second support post is disposed above a top surface of the third shelf, (B) each of the apertures of the second shelf is threaded through at least a portion of its thickness, and (C) the threaded lower end of each second support post is receivable within one of the threaded apertures in the second shelf.