Bezel assembly for pneumatic control

• US 20050095154A1
• Filed: 10/30/2003
• Published: 05/05/2005
• Est. Priority Date: 10/30/2003
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: McGill, David W., Tracey, Brian
• Granted Patent: US 7,632,080 B2
• Time in Patent Office: Days
• US Class Current: 417/477.9
• CPC Class Codes: A61L 2/0088 Liquid substances
• CPC Class Codes: A61L 2/24 Apparatus using programmed or automatic operation
• CPC Class Codes: A61M 1/0213 with isolated sections of the tube used as additive reservoirs
• CPC Class Codes: A61M 1/0272 Apparatus for treatment of blood or blood constituents prior to or for conservation, e.g. freezing, drying or centrifuging
• CPC Class Codes: A61M 1/0281 Apparatus for treatment of blood or blood constituents prior to transfusion, e.g. washing, filtering or thawing
• CPC Class Codes: A61M 1/36225 with blood pumping means or components thereof
• CPC Class Codes: A61M 1/3687 Chemical treatment A61M1/3675 takes precedence
• CPC Class Codes: A61M 2205/125 with incorporated filters
• CPC Class Codes: B01F 23/451 by injecting one liquid into another
• CPC Class Codes: B01F 23/49 Mixing systems, i.e. flow charts or diagrams
• CPC Class Codes: B01F 25/105 Mixing heads, i.e. compact mixing units or modules, using mixing valves for feeding and mixing at least two components
• CPC Class Codes: B01F 25/60 Pump mixers, i.e. mixing within a pump
• CPC Class Codes: B01F 33/81 Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
• CPC Class Codes: B01F 33/811 in two or more consecutive, i.e. successive, mixing receptacles or being consecutively arranged
• CPC Class Codes: B01F 35/711 for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
• CPC Class Codes: B01F 35/715 Feeding the components in several steps, e.g. successive steps
• CPC Class Codes: B01F 35/8823 using diaphragms or bellows
• CPC Class Codes: F04B 13/02 of two or more fluids at the same time
• CPC Class Codes: F04B 23/02 having reservoirs
• CPC Class Codes: F04B 23/06 the pumps being all of reciprocating positive-displacement type
• CPC Class Codes: F04B 43/0009 : Special features
• CPC Class Codes: F04B 43/06 : Pumps having fluid drive
• CPC Class Codes: F04B 49/22 : by means of valves F04B49/03 takes precedence
• CPC Class Codes: F04B 53/06 : Venting
• CPC Class Codes: F04B 53/16 : Casings; Cylinders; Cylinder liners or heads; Fluid connections
• CPC Class Codes: F04B 53/22 : Arrangements for enabling ready assembly or disassembly
• CPC Class Codes: G05D 11/132 : by controlling the flow of the individual components G05D11/133 takes precedence
• CPC Class Codes: Y02A 50/30 : Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
• CPC Class Codes: Y10T 137/0329 : Mixing of plural fluids of diverse characteristics or conditions
• CPC Class Codes: Y10T 137/0352 : Controlled by pressure
• CPC Class Codes: Y10T 137/86131 : Plural
• CPC Class Codes: Y10T 137/87652 : With means to promote mixing or combining of plural fluids
• CPC Class Codes: Y10T 29/53 : Means to assemble or disassemble
• CPC Class Codes: Y10T 292/0911 : Hooked end
• CPC Class Codes: Y10T 292/212 : With expanding or contracting means
• CPC Class Codes: Y10T 292/438 : Spring-arm catch

Abstract

A bezel and bezel assembly in which the bezel is a rigid block with a plurality of cavities. A depression in the block has ribs extending up therefrom to form an elevated contour. The depression includes at least one cavity therein for the application of air pressure into the depression and over the elevated contour. A gasket fits over the bezel so that positive pressure applied through the at least one cavity in the depression forces a gasket membrane to expand away from the pumping side and negative pressure applied through the at least one cavity in the depression pulls the gasket membrane against the elevated contour of the ribs. The bezel may include solvent bondable tubing connections for making pneumatic connections to the bezel.

Claims

1. A bezel for use in delivery of pneumatic pressure comprising:

a rigid block having a plurality of ports integrally molded on a port side of the rigid block, each port providing a solvent bondable tubing connection to the bezel; and

a plurality of cavities on a pumping side of the rigid block, each cavity in fluid communication through the rigid block with one of the ports for delivering pneumatic pressure applied to the port through the solvent bondable tubing connection.

2. A bezel according to claim 1 wherein the ports are hollow tubular structures integral with the rigid block and extending out from the port side of the rigid block.

3. A bezel according to claim 2 wherein the port side is opposite the pumping side.

4. A bezel according to claim 1 wherein the ports have inner diameters larger in size than the cavity in fluid communication therewith.

5. A bezel according to claim 1 further comprising:

a first depression in the pumping side of the rigid block, the first depression having at least one of the cavities therein.

6. A bezel according to claim 5 further comprising:

ribs extending up from the first depression to form an elevated contour above the pumping side of the rigid block, the ribs allowing pneumatic pressure applied through the at least one cavity in the first depression to be applied over the elevated contour.

7. A bezel according to claim 6 wherein the ribs form a symmetrical grid of air passages.

8. A bezel according to claim 7 wherein the first depression includes a chamber wall from which the ribs extend such that removal of the ribs leaves an open chamber defined by the chamber wall.

9. A bezel according to claim 8 wherein the ribs are removable by a milling operation.

10. A bezel according to claim 6 further comprising an open chamber formed by a second depression in the pumping side of the rigid block.

11. A bezel according to claim 10 wherein each of the first and second depressions include two of the cavities therein.

12. A bezel according to claim 6 wherein the first depression includes two of the cavities therein.

13. A bezel according to claim 12 wherein the ribs are arranged to provide a plurality of air passages between the two of the cavities.

14. A bezel according to claim 13 wherein the ribs leave a straight air passage unobstructed by ribs at each of the two cavities, such that at each of the two cavities the respective straight air passage connects the cavity to the plurality of air passages between the two of the cavities.

15. A bezel according to claim 13 wherein the ribs are parallel to a perimeter of the first depression.

16. A bezel according to claim 6 wherein the elevated contour formed by the ribs is a mound that increases in height from a perimeter of the first depression toward a middle of the mound.

17. A bezel according to claim 6 wherein the ports are hollow tubular structures integral with the rigid block and extending out from the port side of the block.

18. A bezel according to claim 17, wherein the port side is opposite the pumping side.

19. A bezel according to claim 17 wherein the ports have inner diameters larger in size than the cavity in fluid communication therewith.

20. A bezel according to claim 5 further comprising:

means for coupling a rib insert in the depression, the rib insert including ribs extending up from the first depression to form an elevated contour above the pumping side of the rigid block, the ribs allowing pneumatic pressure applied through the at least one cavity in the first depression to be applied over the elevated contour.

21. A bezel for use in delivery of pneumatic pressure comprising:

a rigid block having a plurality of cavities on a pumping side of the block in fluid communication with ports accessible from a port side of the block;

a first depression in the pumping side of the rigid block, the first depression having at least one of the cavities therein; and

ribs extending up from the first depression to form an elevated contour above the pumping side of the rigid block, the ribs allowing pneumatic pressure applied through the at least one cavity in the first depression to be applied over the elevated contour.

22. A bezel according to claim 21 wherein the ribs form a symmetrical grid of air passages.

23. A bezel according to claim 21 wherein the first depression includes a chamber wall from which the ribs extend such that removal of the ribs leaves an open chamber defined by the chamber wall.

24. A bezel according to claim 23 wherein the ribs are removable by a milling operation.

25. A bezel according to claim 21 further comprising an open chamber formed by a second depression in the pumping side of the rigid block.

26. A bezel according to claim 25 wherein each of the first and second depressions include two of the cavities therein.

27. A bezel according to claim 21 wherein the first depression includes two of the cavities therein.

28. A bezel according to claim 27 wherein the ribs are arranged to provide a plurality of air passages between the two of the cavities.

29. A bezel according to claim 28 wherein the ribs leave a straight air passage unobstructed by ribs at each of the two cavities, such that at each of the two cavities the respective straight air passage connects the cavity to the plurality of air passages between the two of the cavities.

30. A bezel according to claim 28 wherein the ribs are parallel to a perimeter of the first depression.

31. A bezel according to claim 21 wherein the elevated contour formed by the ribs is a mound that increases in height from a perimeter of the first depression toward a middle of the mound.

32. A bezel according to claim 21 wherein the ports are hollow tubular structures integral with the rigid block and extending out from the port side of the block.

33. A bezel according to claim 32, wherein the port side is opposite the pumping side.

34. A bezel according to claim 32 wherein the ports have inner diameters larger in size than the cavity in fluid communication therewith.

35. A bezel according to claim 21, wherein each port provides a solvent bondable tubing connection to the bezel.

36. A bezel assembly for use in delivery of pneumatic pressure comprising:

a rigid block having a plurality of cavities on a pumping side of the block in fluid communication with ports accessible from a port side of the block;

a first depression in the pumping side of the rigid block, the first depression having at least one of the cavities therein; and

a removable rib insert coupled in the first depression, the rib insert having a plurality of ribs extending up from the first depression to form an elevated contour above the pumping side of the rigid block, the ribs allowing pneumatic pressure applied through the at least one cavity in the first depression to be applied over the elevated contour.

37. A bezel according to claim 36 wherein the ribs form a symmetrical grid of air passages.

38. A bezel according to claim 36 further comprising an open chamber formed by a second depression in the pumping side of the rigid block.

39. A bezel according to claim 38 wherein each of the first and second depressions include two of the cavities therein.

40. A bezel according to claim 36 wherein the first depression includes two of the cavities therein.

41. A bezel according to claim 40 wherein the ribs are arranged to provide a plurality of air passages between the two of the cavities.

42. A bezel according to claim 41 wherein the ribs leave a straight air passage unobstructed by ribs at each of the two cavities, such that at each of the two cavities the respective straight air passage connects the cavity to the plurality of air passages between the two of the cavities.

43. A bezel according to claim 41 wherein the ribs are parallel to a perimeter of the first depression.

44. A bezel according to claim 36 wherein the elevated contour formed by the ribs is a mound that increases in height from a perimeter of the first depression toward a middle of the mound.

45. A bezel according to claim 36 wherein the ports are hollow tubular structures integral with the rigid block and extending out from the port side of the block.

46. A bezel according to claim 45, wherein the port side is opposite the pumping side.

47. A bezel according to claim 45 wherein the ports have inner diameters larger in size than the cavity in fluid communication therewith.

48. A bezel according to claim 36, wherein each port provides a solvent bondable tubing connection to the bezel.

49. A bezel assembly comprising:

a bezel formed by;

a rigid block having a plurality of cavities on a pumping side of the block;

a first depression in the pumping side of the rigid block, the first depression having at least one of the cavities therein; and

ribs extending up from the first depression to form an elevated contour above the pumping side of the rigid block; and

a gasket fitting over the pumping side of the rigid block such that positive pressure applied through the at least one cavity in the first depression forces a gasket membrane to expand away from the pumping side and negative pressure applied through the at least one cavity in the first depression pulls the gasket membrane against the elevated contour of the ribs.

50. A bezel assembly according to claim 49 wherein the ribs form a symmetrical grid of air passages.

51. A bezel assembly according to claim 49 wherein the first depression includes a chamber wall from which the ribs extend such that removal of the ribs leaves an open chamber defined by the chamber wall.

52. A bezel assembly according to claim 51 wherein the ribs are removable by a milling operation.

53. A bezel assembly according to claim 49 further comprising an open chamber formed by a second depression in the pumping side of the rigid block, the second depression having at least one of the cavities therein.

54. A bezel assembly according to claim 53 wherein each of the first and second depressions include two of the cavities therein.

55. A bezel assembly according to claim 49 wherein the first depression includes two of the cavities therein.

56. A bezel assembly according to claim 55 wherein the ribs are arranged to provide a plurality of air passages between the two of the cavities.

57. A bezel assembly according to claim 56 wherein the ribs leave a straight air passage unobstructed by ribs at each of the two cavities, such that at each of the two cavities the respective straight air passage connects the cavity to the plurality of air passages between the two of the cavities.

58. A bezel assembly according to claim 56 wherein the ribs are parallel to a perimeter of the first depression.

59. A bezel assembly according to claim 49 wherein the elevated contour formed by the ribs is a mound that increases in height from a perimeter of the first depression toward a middle of the mound.

60. A bezel assembly according to claim 49 further comprising ports, each in fluid communication with one of the cavities and accessible from a port side of the rigid block.

61. A bezel assembly according to claim 60 wherein the ports are hollow tubular structures integral with the rigid block and extending out from the port side of the block.

62. A bezel assembly according to claim 61, wherein the port side is opposite the pumping side.

63. A bezel assembly according to claim 61 wherein the ports have inner diameters larger in size than the cavity in fluid communication therewith.

64. A bezel assembly according to claim 60, wherein each port provides a solvent bondable tubing connection to the bezel.

65. A bezel assembly according to claim 49, wherein the ribs are molded into the first depression.

66. A bezel assembly according to claim 49, wherein the ribs are inserted into the first depression.