Self-valving vacuum distribution for a belt-driven sheet conveyor
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United States of America Patent
Stats
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Nov 20, 2007
Grant Date -
Jul 21, 2005
app pub date -
Jan 19, 2004
filing date -
Jan 19, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A self-valving vacuum distribution system for a belt-driven sheet conveyor utilizes the sheets to automatically open vacuum control valves sequentially in a downstream direction as the sheet is carried on the belts. The system also automatically adjusts for varying sheet widths to automatically apply vacuum holding force only to the belt conveyor area covered by the sheet.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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BARRY-WEHMILLER PAPERSYSTEMS INC | 8020 FORSYTH BLVD ST LOUIS MO 63105 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kondratuk, John J | Kennan, WI | 7 | 107 |
# of filed Patents : 7 Total Citations : 107 | |||
Marschke, Carl R | Phillips, WI | 81 | 857 |
# of filed Patents : 81 Total Citations : 857 |
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Patent Citation Ranking
- 13 Citation Count
- B65H Class
- 73.01 % this patent is cited more than
- 18 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Jan 06, 2014 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Nov 09, 2010 | CC | CERTIFICATE OF CORRECTION | |
Sep 28, 2010 | CC | CERTIFICATE OF CORRECTION | |
Jul 27, 2010 | I | Issuance | |
Jul 07, 2010 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 10, 2010 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOUTHIETTE, MICHEL;REEL/FRAME:024540/0877 Owner name: 9155-0020 QUEBEC INC.,CANADA Effective Date: Jun 10, 2010 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOUTHIETTE, MICHEL;REEL/FRAME:024540/0877 Owner name: 9155-0020 QUEBEC INC., CANADA Effective Date: Jun 10, 2010 |
Sep 06, 2007 | P | Published | |
Feb 14, 2007 | F | Filing | |
Mar 03, 2006 | PD | Priority Date |

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