Airfoil apparatus for a system having a controlled internal environment

Patent metadata

Field	Value
Publication number	US-9945067-B1
Application number	US-201615295304-A
Country	US
Kind code	B1
Filing date	Oct 17, 2016
Priority date	Oct 17, 2016
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

According to an aspect of the present disclosure, an airfoil apparatus is provided which minimizes entry of entrained air into a system having a controlled internal environment, such as a corona treatment system, such entrained air resulting from a high-speed web moving into the system. According to another aspect of the present disclosure, the airfoil apparatus is rotatable relative to the system so that the airfoil apparatus can be adjusted to changes in the web.

First claim

The invention claimed is:

1. An assembly comprising:
a system having a controlled interior environment comprising a cabinet defining an internal chamber, upper and lower nip rollers mounted on the cabinet and forming a nip through which a web of material can pass; and
an airfoil assembly comprising an upper airfoil cantilevered from the cabinet, the upper airfoil comprising a first wall and a second wall, the first wall having a rear end, a forward end, an upper surface and a lower surface, the rear end of the first wall being attached to the cabinet proximate to the upper nip roller such that the forward end is spaced from the cabinet, the second wall having a top end, a forward surface and a rearward surface, the second wall extending upwardly from the upper surface of the first wall and at an angle relative to the first wall, a lower airfoil cantilevered from the cabinet, the lower airfoil comprising a first wall and a second wall, the first wall of the lower airfoil having a rear end, a forward end, an upper surface and a lower surface, the rear end of the first wall of the lower airfoil attached to the cabinet proximate to the lower nip roller such that the forward end of the lower airfoil is spaced from the cabinet, the second wall of the lower airfoil having a top end, a forward surface and a rearward surface, the second wall of the lower airfoil extending downwardly from the lower surface of the first wall of the lower airfoil and at an angle relative to the first wall of the lower airfoil.

2. The assembly of claim 1 , wherein the upper airfoil is rotatably mounted to the cabinet such that the forward end of the upper airfoil can be moved toward or away from the forward end of the lower airfoil.

3. The assembly of claim 1 , wherein the lower airfoil is rotatably mounted to the cabinet such that the forward end of the lower airfoil can be moved toward or away from the forward end of the upper airfoil.

4. The assembly of claim 1 , wherein the upper and lower airfoils are rotatably mounted to the cabinet such that the forward ends of the airfoils can be moved toward or away from each other.

5. The assembly of claim 1 , wherein the first wall of the upper airfoil is angled relative to the second wall of the upper airfoil at an angle of 90 degrees.

6. The assembly of claim 1 , wherein the first wall of the lower airfoil is angled relative to the second wall of the lower airfoil at an angle of 90 degrees.

7. The assembly of claim 1 , wherein the first wall of the upper airfoil is angled relative to the second wall of the upper airfoil at an angle of 90 degrees and the first wall of the lower airfoil is angled relative to the second wall of the lower airfoil at an angle of 90 degrees.

8. The assembly of claim 1 , wherein the upper airfoil is attached to the cabinet by a rod which is rotatably mounted to the cabinet.

9. The assembly of claim 8 , further comprising a knob attached to the rod, wherein upon rotation of the knob, the upper airfoil is rotated.

10. The assembly of claim 8 , further comprising a motor attached to the upper airfoil, the motor being configured to rotate the upper airfoil.

11. The assembly of claim 1 , wherein the lower airfoil is attached to the cabinet by a rod which is rotatably mounted to the cabinet.

12. The assembly of claim 11 , further comprising a knob attached to the rod, wherein upon rotation of the knob, the lower airfoil is rotated.

13. The assembly of claim 11 , further comprising a motor attached to the upper airfoil, the motor being configured to rotate the upper airfoil.

14. The assembly of claim 1 , wherein the upper airfoil is attached to the cabinet by a rod which is rotatably mounted to the cabinet, and the lower airfoil is attached to the cabinet by a rod which is rotatably mounted to the cabinet.

15. The assembly of claim 14 , further comprising a knob attached to each rod, wherein upon rotation of the knob, the airfoil is rotated.

16. The assembly of claim 14 , further comprising a motor attached to the upper airfoil, the motor being configured to rotate the upper airfoil.

17. The assembly of claim 1 , further comprising a spacer member attached to the upper airfoil, the spacer member having a rear end, a forward end, an upper surface and a lower surface, and a rod attached to the spacer member, the rod being rotatable relative to the cabinet to rotate the upper airfoil and the spacer member, wherein surfaces of the spacer member and the upper airfoil overlap, wherein one of the upper airfoil and the spacer member has a plurality of elongated slots therethrough, each slot having a length, and the other of the upper airfoil and the spacer member has a plurality of fasteners attached thereto, wherein the respective fasteners are mounted in respective slots, the fasteners being configured to move along the length of the slots to move the upper airfoil relative to the spacer member.

18. The assembly of claim 1 , further comprising a spacer member attached to the lower airfoil, the spacer member having a rear end, a forward end, an upper surface and a lower surface, and a rod attached to the spacer member, the rod being rotatable relative to the cabinet to rotate the lower airfoil and the spacer member, wherein surfaces of the spacer member and the lower airfoil overlap, wherein one of the lower airfoil and the spacer member has a plurality of elongated slots therethrough, each slot having a length, and the other of the lower airfoil and the spacer member has a plurality of fasteners attached thereto, wherein the respective fasteners are mounted in respective slots, the fasteners being configured to move along the length of the slots to move the lower airfoil relative to the spacer member.

19. The assembly of claim 1 , further comprising an upper spacer member attached to the upper airfoil, the upper spacer member having a rear end, a forward end, an upper surface and a lower surface, and a upper rod attached to the upper spacer member, the upper rod being rotatable relative to the cabinet to rotate the upper airfoil and the upper spacer member, wherein surfaces of the upper spacer member and the upper airfoil overlap, wherein one of the upper airfoil and the upper spacer member has a plurality of elongated slots therethrough, each slot having a length, and the other of the upper airfoil and the upper spacer member has a plurality of fasteners attached thereto, wherein the respective fasteners are mounted in respective slots, the fasteners being configured to move along the length of the slots to move the upper airfoil relative to the upper spacer member, and a lower spacer member attached to the lower airfoil, the lower spacer member having a rear end, a forward end, an upper surface and a lower surface, and a lower rod attached to the lower spacer member, the lower rod being rotatable relative to the cabinet to rotate the lower airfoil and the lower spacer member, wherein surfaces of the lower spacer member and the lower airfoil overlap, wherein one of the lower airfoil and the lower spacer member has a plurality of elongated slots therethrough, each slot in the one of the lower airfoil and the lower spacer member having a length, and the other of the lower airfoil and the lower spacer member has a plurality of fasteners attached thereto, wherein the respective fasteners in the one of the lower airfoil and the lower spacer member are mounted in respective slots, the fasteners in the one of the lower airfoil and the lower spacer member being configured to move along the length of the slots in the one of the lower ai

Assignees

• Illinois Tool Works

Inventors

• Wolf Rory A

Classifications

• D06B19/007

  by application of electric energy · CPC title

• D06C15/00

  Calendering, pressing, ironing, glossing or glazing textile fabrics (for making patterns or designs D06C23/00) · CPC title

• D06B23/18

  Sealing arrangements · CPC title

• D06M10/02

  Sonic or ultrasonic waves; Corona discharge · CPC title

• B29C59/10

  by electric discharge treatment · CPC title