Browse Prior Art Database

Vacuum Assisted Closure for Tape Drive Vacuum Column Door

IP.com Disclosure Number: IPCOM000092698D
Original Publication Date: 1967-Feb-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Bell, AH: AUTHOR

Abstract

The tape drive has a pair of long vacuum columns 11 and 12 and a pair of short, tapered vacuum columns 13 and 14. A single glass door 20 covers the entire front portion of the tape drive encompassing the four vacuum columns. Door 20 covers the vacuum columns and intermediate areas. Such door can be hinged on either the left or right side of the tape drive and it is latched on the opposite side.

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Vacuum Assisted Closure for Tape Drive Vacuum Column Door

The tape drive has a pair of long vacuum columns 11 and 12 and a pair of short, tapered vacuum columns 13 and 14. A single glass door 20 covers the entire front portion of the tape drive encompassing the four vacuum columns. Door 20 covers the vacuum columns and intermediate areas. Such door can be hinged on either the left or right side of the tape drive and it is latched on the opposite side.

Vacuum port 16 connects to an intermediate volume of air space bounded by sides of vacuum columns 11, 12, and 13 and a bar 18 across the bottom to seal it. The vacuum in chamber 17 creates a substantial force on door 20 in addition to the force created by the vacuum columns when such door is closed.

The vacuum forces cause deformities in door 20 that seal the glass along the edges of each of the respective vacuum columns to prevent air leakage between them. Also the vacuum force on door 20 is sufficiently great to create an interlock that prohibits any manual opening of the door while the tape drive vacuum is on.

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