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US3841963A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for satinizing fibrous webs

Assignee: Kleinewefers Industrie Co GmbH and Co KG
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Filing: 1973-05-03
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Granted: 1974-10-15
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Expires: 1993-05-03
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Abstract

Abstract 1. A calendar for satinizing fibrous webs directly with only two roller pairs arranged in a plane above each other in vertical alignment, comprising: a first metallic satinizing roll, having a relatively hard rough surface for satinizing; a first backup roll in first nip defining relationship with only said first metallic satinizing roll, having a resilient smooth surface comprising a synthetic material formed by polymerization of one or more materials; a second metallic satinizing roll; having a relatively hard rough surface for satinizing; a second backup roll in second nip defining relationship with only said second metallic satinizing roll, having a resilient smooth surface comprising a synthetic material formed by polymerization of one or more materials, and fibrous web support means for continued feeding of said web first through said first nip in one direction of entry, said first and second metallic satinizing rollers having uppermost and lowermost locations remote from each other and said first and second backup rollers directly adjoining each other in location intermediate said first and second metallic satinizing rolls with looping angle amounting to 180 degree around one backup roll resulting in web exit in direction substantially opposite to direction of entry and alternately for continued feeding of said web in just the opposite way.

Inventors

  • 👤 J Schlunke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 13:22
CPC Classifications
D; D21; D21G; D21G1/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 209 words
A calendar for satinizing fibrous webs directly with only two roller pairs arranged in a plane above each other in vertical alignment, comprising: a first metallic satinizing roll, having a relatively hard rough surface for satinizing; a first backup roll in first nip defining relationship with only said first metallic satinizing roll, having a resilient smooth surface comprising a synthetic material formed by polymerization of one or more materials; a second metallic satinizing roll; having a relatively hard rough surface for satinizing; a second backup roll in second nip defining relationship with only said second metallic satinizing roll, having a resilient smooth surface comprising a synthetic material formed by polymerization of one or more materials, and fibrous web support means for continued feeding of said web first through said first nip in one direction of entry, said first and second metallic satinizing rollers having uppermost and lowermost locations remote from each other and said first and second backup rollers directly adjoining each other in location intermediate said first and second metallic satinizing rolls with looping angle amounting to 180 degree around one backup roll resulting in web exit in direction substantially opposite to direction of entry and alternately for continued feeding of said web in just the opposite way.
Claim 2
Dependent Claim 209 words
A calendar for satinizing fibrous webs directly with only two roller pairs arranged in a plane above each other in vertical alignment, comprising: a first metallic satinizing roll, having a relatively hard rough surface for satinizing; a first backup roll in first nip defining relationship with only said first metallic satinizing roll, having a resilient smooth surface comprising a synthetic material formed by polymerization of one or more materials; a second metallic satinizing roll; having a relatively hard rough surface for satinizing; a second backup roll in second nip defining relationship with only said second metallic satinizing roll, having a resilient smooth surface comprising a synthetic material formed by polymerization of one or more materials, and fibrous web support means for continued feeding of said web first through said first nip in one direction of entry, said first and second metallic satinizing rollers having uppermost and lowermost locations remote from each other and said first and second backup rollers directly adjoining each other in location intermediate said first and second metallic satinizing rolls with looping angle amounting to 180 degree around one backup roll resulting in web exit in direction substantially opposite to direction of entry and alternately for continued feeding of said web in just the opposite way.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-14 1978-04-15 1978-10-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-14 1982-04-15 1982-10-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-14 1986-04-15 1986-10-15 $7700.00 Window Closed / Lapsed

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