Pumping system, replacement kit including piston and/or cylinder, and method for pumping system maintenance

• US 7,284,961 B2
• Filed: 06/06/2002
• Issued: 10/23/2007
• Est. Priority Date: 06/06/2002
• Status: Expired due to Term

• Current Assignee: BS&B Safety Systems LLC (International Systems & Controls Corp.)
• Original Assignee: BS&B Safety Systems LLC (International Systems & Controls Corp.)
• Inventors: Jacobsen, Jerry
• Primary Examiner(s): FREAY, CHARLES GRANT
• Application Number:
  US10/162,747
• Publication Number:
  US 20030228227A1
• Time in Patent Office: 1,965 Days
• Field of Search: 417/403, 417/401, 417/399, 417/53, 417/1, 417/43, 417/52, 417/44.8, 417/199.1, 417/199.2, 417/211, 417/212, 417/214, 417/217, 417/388, 417/400, 921/691, 921/711, 921/692, 921/693, 921/694, 921/701, 921/72, 921/71
• US Class Current: 417/53
• CPC Class Codes: F04B 53/22 Arrangements for enabling ready assembly or disassembly
• CPC Class Codes: F04B 9/125 reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor

Abstract

A pumping system including a pump is disclosed. The pump includes a replacement piston and a replacement cylinder associated with the replacement piston. The replacement piston has a cross sectional area smaller than a cross sectional area of an original piston of the pump.

Claims

1. In a pumping system comprising:

a pump including an original piston, the improvement comprising;

a replacement piston having two opposite ends, and a replacement cylinder associated with the replacement piston, fluid acting on one of the two opposite ends causing the replacement piston to move in a first direction and fluid acting on the other of the two opposite ends causing the replacement piston to move in a second direction opposite to the first direction, wherein a cross sectional area of the replacement piston, as installed, at a position between the two opposite ends is smaller than a cross sectional area of the original piston of the pump at a corresponding position.

2. The pumping system of claim 1, wherein the replacement piston has a circular cross section.

3. In a pumping system comprising:

a pneumatic source;

a pump including an original; and

first and second flanges each including a port connected to the pneumatic source, the improvement comprising;

a replacement piston having two opposite ends, and a replacement cylinder associated with the replacement piston, fluid from the pneumatic source acting on one of the two opposite ends causing the replacement piston to move in a first direction and fluid from the pneumatic source acting on the other of the two opposite ends causing the replacement piston to move in a second direction opposite to the first direction, the replacement piston, as installed, having a cross sectional area smaller than a cross sectional area of the original piston of the pump.

4. The pumping system of claim 3, further comprising a flow regulator installed between the pneumatic source and the pump to control the amount of fluid supplied from the pneumatic source to the pump.

5. A pumping system comprising:

a pneumatic source; and

a pump including first and second flanges each including a port connected to the pneumatic source, a replacement piston, and a replacement cylinder associated with the replacement piston, the replacement piston having a cross sectional area smaller than a cross sectional area of an original piston of the pump,

wherein the replacement cylinder includes first and second end plates extending outwardly from a bore of the replacement cylinder, each of the first and second end plates including a slot in fluid communication with the bore of the replacement cylinder, each slot being aligned with the port of the first and second flanges of the pump.

6. The pumping system of claim 5, wherein each of the first and second flanges of the pump includes a hole and each of the first and second end plates of the replacement cylinder includes a second slot in fluid communication with the bore of the replacement cylinder and aligned with the hole of the first and second flanges of the pump.

7. The pumping system of claim 5, wherein each of the first and second flanges of the pump includes an o-ring and each of the first and second end plates of the replacement cylinder includes a projection engaging the o-ring of the first and second flanges of the pump.

8. A replacement kit for a pumping system, the pumping system comprising a pump including a piston and a cylinder associated with the piston, the replacement kit comprising:

a replacement piston to replace the piston of the pump, the replacement piston having two opposite ends, fluid acting on one of the two opposite ends causing the replacement piston to move in a first direction and fluid acting on the other of the two opposite ends causing the replacement piston to move in a second direction opposite to the first direction, wherein a cross sectional area of the replacement piston at a position between the two opposite ends is smaller than a cross sectional area of the original piston of the pump at a corresponding position.

9. The replacement kit of claim 8, wherein the replacement piston has a circular cross section.

10. The replacement kit of claim 8, further comprising a replacement cylinder associated with the replacement piston to replace the cylinder of the pump.

11. A replacement kit for a pumping system, the pumping system comprising a pump including a piston, a cylinder associated with the piston, and first and second flanges each including a port, the replacement kit comprising:

a replacement piston to replace the piston of the pump, the replacement piston having a cross sectional area smaller than a cross sectional area of the original piston of the pump; and

a replacement cylinder associated with the replacement piston to replace the cylinder of the pump, the replacement cylinder including first and second end plates extending outwardly from a bore of the replacement cylinder, each of the first and second end plates including a slot in fluid communication with the bore of the replacement cylinder and configured to align with the port of the first and second flanges of the pump.

12. The replacement kit of claim 11, wherein each of the first and second flanges of the pump includes a hole and each of the first and second end plates includes a second slot in fluid communication with the bore of the replacement cylinder and configured to align with the hole of the first and second flanges of the pump.

13. The replacement kit of claim 11, wherein each of the first and second flanges of the pump includes an o-ring and each of the first and second end plates of the replacement cylinder includes a projection configured to engage the o-ring of the first and second flanges of the pump.

14. The replacement kit of claim 11, wherein the pumping system includes a pneumatic source connected to the pump and the replacement kit further comprises a flow regulator installable between the pneumatic source and the pump to control the amount of fluid supplied to the pump from the pneumatic source.

15. A replacement kit for a pumping system, the pumping system comprising a pump including a cylinder and a piston associated with the cylinder, the replacement kit comprising:

a replacement cylinder to replace the cylinder of the pump, the replacement cylinder including a bore sized to accommodate a replacement piston therein and two slots in fluid communication with the bore, the two slots being positioned at opposite sides of the replacement cylinder such that fluid entering the bore through one of the two slots causes the replacement piston to move in a first direction and fluid entering the bore through the other of the two slots causes the replacement piston to move in a second direction opposite to the first direction, the bore having a cross sectional area smaller than a cross sectional area of a bore of the original cylinder of the pump.

16. The replacement kit of claim 15, wherein the bore of the replacement cylinder has a circular cross section.

17. The replacement kit of claim 15, further comprising the replacement piston to replace the piston of the pump.

18. A replacement kit for a pumping system, the pumping system comprising a pump including a cylinder, a piston associated with the cylinder, and first and second flanges each including a port, the replacement kit comprising:

a replacement cylinder to replace the cylinder of the pump, the replacement cylinder including a bore having a cross sectional area smaller than a cross sectional area of a bore of the original cylinder of the pump and first and second end plates extending outwardly from the bore of the replacement cylinder, each of the first and second end plates including a slot in fluid communication with the bore of the replacement cylinder and configured to align with the port of the first and second flanges of the pump.

19. The replacement kit of claim 18, wherein each of the first and second flanges of the pump includes a hole and each of the first and second end plates includes a second slot in fluid communication with the bore of the replacement cylinder and configured to align with the hole of the first and second flanges of the pump.

20. The replacement kit of claim 18, wherein each of the first and second flanges of the pump includes an o-ring and each of the first and second end plates of the replacement cylinder includes a projection configured to engage the o-ring of the first and second flanges of the pump.

21. The replacement kit of claim 18, wherein the pumping system includes a pneumatic source connected to the pump and the replacement kit further comprises a flow regulator installable between the pneumatic source and the pump to control the amount of fluid supplied to the pump from the pneumatic source.

22. A method for maintaining a pumping system, the pumping system comprising a pump including a piston and a cylinder associated with the piston, the method comprising the step of:

replacing the piston of the pump with a replacement piston having two opposite ends, fluid acting on one of the two opposite ends causing the replacement piston to move in a first direction and fluid acting on the other of the two opposite ends causing the replacement piston to move in a second direction opposite to the first direction, wherein a cross sectional area of the replacement piston at a position between the two opposite ends is smaller than a cross sectional area of the original piston of the pump at a corresponding position.

23. The method of claim 22, wherein the piston of the pump is the original piston of the pump.

24. The method of claim 22, wherein the replacement piston has a circular cross section.

25. The method of claim 22, further comprising the step of replacing the cylinder of the pump with a replacement cylinder associated with the replacement piston.

26. A method for maintaining a pumping system, the pumping system comprising a pneumatic source and a pump, the pump including a piston, a cylinder associated with the piston, and a first and second flanges each including a port connected to the pneumatic source, the method comprising the steps of:

replacing the piston of the pump with a replacement piston having two opposite ends, fluid from the port of the first flange acting on one of the two opposite ends causing the replacement piston to move in a first direction and fluid from the port of the second flange acting on the other of the two opposite ends causing the replacement piston to move in a second direction opposite to the first direction, the replacement piston having a cross sectional area smaller than a cross sectional area of the original piston of the pump; and

replacing the cylinder of the pump with a replacement cylinder associated with the replacement piston.

27. The method of claim 26, further comprising the step of installing a flow regulator between the pneumatic source and the pump to control the amount of fluid supplied from the pneumatic source to the pump.

28. A method for maintaining a pumping system, the pumping system comprising a pneumatic source and a pump, the pump including a piston, a cylinder associated with the piston, and a first and second flanges each including a port connected to the pneumatic source, the method comprising the steps of:

replacing the piston of the pump with a replacement piston, the replacement piston having a cross sectional area smaller than a cross sectional area of the original piston of the pump; and

replacing the cylinder of the pump with a replacement cylinder associated with the replacement piston, the replacement cylinder including first and second end plates extending outwardly from a bore of the replacement cylinder, each of the first and second end plates including a slot in fluid communication with the bore of the replacement cylinder, each slot being configured to align with the port of the first and second flanges of the pump, wherein the step of replacing the cylinder of the pump with the replacement cylinder includes the steps of;

aligning the slots of the first and second end plates of the replacement cylinder with the ports of the first and second flanges of the pump; and

securing the first and second flanges of the pump and the first and second end plates of the replacement cylinder to each other.

29. The method of claim 28, wherein each of the first and second flanges of the pump includes a hole, each of the first and second end plates includes a second slot in fluid communication with the bore of the replacement cylinder and configured to align with the hole of the first and second flanges of the pump, and the step of aligning the slots of the first and second end plates with the ports of the first and second flanges also aligns the second slots of the first and second end plates with the holes of the first and second flanges.

30. The method of claim 28, wherein each of the first and second flanges of the pump includes an o-ring, each of the first and second end plates of the replacement cylinder includes a projection configured to engage the o-ring of the first and second flanges of the pump, and the step of replacing the cylinder of the pump with the replacement cylinder further includes the step of engaging the projections of the first and second end plates with the o-rings of the first and second flanges.

31. A method for maintaining a pumping system, the pumping system comprising a pump including a cylinder and a piston associated with the cylinder, the method comprising the step of:

replacing the cylinder of the pump with a replacement cylinder, the replacement cylinder including a bore sized to accommodate a replacement piston therein and two slots in fluid communication with the bore, the two slots being positioned at opposite sides of the replacement cylinder such that fluid entering the bore through one of the two slots causes the replacement piston to move in a first direction and fluid entering the bore through the other of the two slots causes the replacement piston to move in a second direction opposite to the first direction, the bore having a cross sectional area smaller than a cross sectional area of a bore of the original cylinder of the pump.

32. The method of claim 31, wherein the cylinder of the pump is the original cylinder of the pump.

33. The method of claim 31, wherein the bore of the replacement cylinder has a circular cross section.

34. The method of claim 31, further comprising the step of replacing the piston of the pump with the replacement piston.

35. A method for maintaining a pumping system, the pumping system comprising a pneumatic source and a pump, the pump including a cylinder, a piston associated with the cylinder, and first and second flanges each including a port connected to the pneumatic source, the method comprising the step of:

replacing the cylinder of the pump with a replacement cylinder including a bore, fluid entering the bore through the port of the first flange causing the piston to move in a first direction and fluid entering the bore through the port of the second flange causing the piston to move in a second direction opposite to the first direction, the bore having a cross sectional area smaller than a cross sectional area of a bore of the original cylinder of the pump.

36. The method of claim 35, further comprising the step of installing a flow regulator between the pneumatic source and the pump to control the amount of fluid supplied from the pneumatic source to the pump.

37. A method for maintaining a pumping system, the pumping system comprising a pneumatic source and a pump, the pump including a cylinder, a piston associated with the cylinder, and first and second flanges each including a port connected to the pneumatic source, the method comprising the step of:

replacing the cylinder of the pump with a replacement cylinder, the replacement cylinder including a bore having a cross sectional area smaller than a cross sectional area of a bore of the original cylinder of the pump, the replacement cylinder including first and second end plates extending outwardly from the bore of the replacement cylinder, each of the first and second end plates including a slot in fluid communication with the bore of the replacement cylinder, each slot being configured to align with the port of the first and second flanges of the pump, wherein the step of replacing the cylinder of the pump with the replacement cylinder includes the steps of;

aligning the slots of the first and second end plates of the replacement cylinder with the ports of the first and second flanges of the pump; and

securing the first and second flanges of the pump and the first and second end plates of the replacement cylinder to each other.

38. The method of claim 37, wherein each of the first and second flanges of the pump includes a hole, each of the first and second end plates includes a second slot in fluid communication with the bore of the replacement cylinder and configured to align with the hole of the first and second flanges of the pump, and the step of aligning the slots of the first and second end plates with the ports of the first and second flanges also aligns the second slots of the first and second end plates with the holes of the first and second flanges.

39. The method of claim 37, wherein each of the first and second flanges of the pump includes an o-ring, each of the first and second end plates of the replacement cylinder includes a projection configured to engage the o-ring of the first and second flanges of the pump, and the step of replacing the cylinder of the pump with the replacement cylinder further includes the step of engaging the projections of the first and second end plates with the o-rings of the first and second flanges.