Differential pressure sealing apparatus and method

Details Differential pressure sealing apparatus and method Differential pressure sealing apparatus and method

1990-09-26

1993-03-09

Lawrence, Evan

Coating processes

With stretching or tensioning

Running lengths

427295, 118 50, 118718, 118719, 118733, B05D 312, B05D 300, C23C 1456

Patent

active

051925850

ABSTRACT:
A differential pressure sealing apparatus and method for processing a continuously moving elongated sheet through successively different stages of vacuum. A vacuum chamber is provided with an inlet and a guide roller for the incoming sheet with the sheet urged against the guide roller over a wrap contact angle of 15 to 120 degrees. To resist the entrance of air into the chamber, a sealing structure encompasses at least portions of the entrance, the guide roller and the sheet.

REFERENCES:
patent: 2963001 (1960-12-01), Alexander
patent: 2972330 (1961-02-01), Bugbee
patent: 2989026 (1961-06-01), Gardner et al.
English translation of Japanese Patent No. 62-23982.

Affiliated with

Also associated with

Rating

Differential pressure sealing apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential pressure sealing apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential pressure sealing apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-209984