Machine having a pneumatic drum for processing sheets of different formats
US-9315331-B2 · Apr 19, 2016 · US
Vacuum commutation apparatus and methods
US10633207B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10633207-B2 |
| Application number | US-201816234163-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 27, 2018 |
| Priority date | Jul 24, 2015 |
| Publication date | Apr 28, 2020 |
| Grant date | Apr 28, 2020 |
How to read this patent
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
The present invention provides a method and apparatus for transporting a discrete element. A preferably rotatably driven vacuum commutation zone (or internal vacuum manifold), preferably internal to a preferably independently driven porous vacuum roll or drum is disclosed. The vacuum manifold applies vacuum through pores in the driven porous vacuum roll or puck in order to hold material against an external surface of the vacuum roll or puck. By independently controlling the vacuum commutation zone and the driven porous surface, unique motion profiles of the vacuum commutation zone relative to the driven porous surface can be provided. Micro vacuum commutation port structures are also disclosed.
First claim
Opening claim text (preview).
I claim: 1. A system for transferring discrete web portions comprising: a drum carrying a plurality of discrete web portions comprising a first web portion and a second web portion; a first transfer roll in selective vacuum commutation with said plurality of discrete web portions; a second transfer roll in selective vacuum commutation with said plurality of discrete web portions, said second transfer roll arranged downstream in a machine direction from said first transfer roll; said first transfer roll acquiring said first web portion by said selective vacuum commutation, and not acquiring said second web portion; said second transfer roll acquiring said second web portion; said first and second transfer rolls depositing said first and second web portions onto a running web. 2. A system for transferring discrete web portions according to claim 1 , wherein said first and second transfer rolls deposit said first and second web portions onto a running web simultaneously. 3. A system for transferring discrete web portions according to claim 1 , said drum carrying said plurality of discrete web portions comprising a third web portion and a fourth web portion. 4. A system for transferring discrete web portions according to claim 3 , said first transfer roll acquiring said third web portion by said selective vacuum commutation, and not acquiring said fourth web portion; said second transfer roll acquiring said fourth web portion; said first and second transfer rolls depositing said third and fourth web portions onto a running web. 5. A system for transferring discrete web portions according to claim 3 , said first and second web portions spaced apart in said machine direction by a first spacing, said third and fourth web portions spaced apart in said machine direction by said first spacing, and said second and third web portions spaced apart in said machine direction by a second spacing at least one of shorter and longer than said first spacing.
Assignees
Inventors
Classifications
Diaper manufacture · CPC title
for inclined or vertical transit · CPC title
distributing vacuum from stationary element to movable element · CPC title
provided with drive systems with rotary movements only · CPC title
the article-engaging elements being suction or magnetic means · CPC title
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Frequently asked questions
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- What does patent US10633207B2 cover?
- The present invention provides a method and apparatus for transporting a discrete element. A preferably rotatably driven vacuum commutation zone (or internal vacuum manifold), preferably internal to a preferably independently driven porous vacuum roll or drum is disclosed. The vacuum manifold applies vacuum through pores in the driven porous vacuum roll or puck in order to hold material against…
- Who is the assignee on this patent?
- Joa Curt G Inc
- What technology area does this patent fall under?
- Primary CPC classification B65H27/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 28 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).