Browse Prior Art Database

Seal for an Electric Cable

IP.com Disclosure Number: IPCOM000074196D
Original Publication Date: 1971-Mar-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 70K

Publishing Venue

IBM

Related People

Engel, G: AUTHOR [+3]

Abstract

A terminal structure for an electric cable 10 comprises tubular conduit 11 with end cap 12 threadable thereon. As described in greater detail in IBM Technical Disclosure Bulletin, Volume 11, No. 8, page 956, cable 10 has a braided copper shield 13 attached to washer 14 which abuts the end of conduit 11. Washer 14 is held against conduit 11 by a grommet 15 which has a flanged head portion 16 which is pressed against sleeve 23 that engages washer 14 when cap 12 is threaded onto conduit 11. Grommet 15 has a tubular portion which includes a tapered section 17 which terminates in a folded portion 18 adapted, when folded, to provide a 360 degree airtight and dustproof seal around cable 10.

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Seal for an Electric Cable

A terminal structure for an electric cable 10 comprises tubular conduit 11 with end cap 12 threadable thereon. As described in greater detail in IBM Technical Disclosure Bulletin, Volume 11, No. 8, page 956, cable 10 has a braided copper shield 13 attached to washer 14 which abuts the end of conduit
11. Washer 14 is held against conduit 11 by a grommet 15 which has a flanged head portion 16 which is pressed against sleeve 23 that engages washer 14 when cap 12 is threaded onto conduit 11. Grommet 15 has a tubular portion which includes a tapered section 17 which terminates in a folded portion 18 adapted, when folded, to provide a 360 degree airtight and dustproof seal around cable 10.

As seen most clearly in Figure B, the tapered section 17 of grommet 15 has a relatively thick and rigid cross section which is tapered toward a relatively thin flexible cross section in region 19. Folded portion 18 also is relatively thicker than the region 19 and is somewhat more rigid. Thus, when cable 10, as shown in Figure B, is inserted through opening 20 in the end of grommet 15, section 18 is forced to bend inwardly around region 19 as cable 10 is moved in the direction of arrow 21. Due to the relative rigidity of tapered section 17, when section 18 has been folded, cable 10 will then slide through the folded section 18 until motion is discontinued.

When cable 10 is moved in the direction of arrow 22 after folding, section 19 might tend to roll somew...