Browse Prior Art Database

Article Holder and Shield in Abrasive Blasting

IP.com Disclosure Number: IPCOM000093119D
Original Publication Date: 1967-May-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Chen, CC: AUTHOR

Abstract

This apparatus holds an article and shields a selected portion of the surface of such article during abrasive blasting, e.g., sand blasting of its surface. Holder 10 has an article receiving recess 11. The latter has a pair of parallel longitudinal slots 12 and 13. These are formed in its enclosing side walls for slidably receiving the edges of ceramic tile 14. A portion 15 of the surface of tile 14 contains a pattern which is to be shielded during the blasting operation.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 85% of the total text.

Page 1 of 2

Article Holder and Shield in Abrasive Blasting

This apparatus holds an article and shields a selected portion of the surface of such article during abrasive blasting, e.g., sand blasting of its surface. Holder 10 has an article receiving recess 11. The latter has a pair of parallel longitudinal slots 12 and 13. These are formed in its enclosing side walls for slidably receiving the edges of ceramic tile 14. A portion 15 of the surface of tile 14 contains a pattern which is to be shielded during the blasting operation.

Shield 16 which is of such a size and so positioned as to be coextensive with area 15 in the fully inserted tile is made of a resilient, heat and electrically insulating material such as rubber. Shield 16 is mounted on spring arm 17 which is fixed to holder 10. Spring arm 17 normally urges shield 16 away from engagement with tile 14. However, during the operational stage of the blasting apparatus, as in drawing B, plunger 18, which is reciprocable along the axis shown by the arrows, is pressed down against spring 17.

Such positioning overcomes the normal bias of spring 17 and presses shield 16 flush against the portion of the surface of tile 14 to be covered during the blasting operation. Then, blasting source 19 abrades the remainder of the surface of tile 14 without affecting the shielded area. Upon the completion of the blasting operation, plunger 18 is raised, spring 17 pulls shield 16 out of engagement with tile 14, and the tile can be removed...