IP Library Granted Patent US 6,862,753
Granted Patent B2
US 6,862,753 · App. 10/436,515 · Granted Mar 8, 2005

Compressed air drain opening device

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Quick Facts
Patent No.
US 6,862,753
App. No.
10/436,515
Granted
Mar 8, 2005
Kind
B2
Abstract

An air plunger is described. The air plunger comprises an upper barrel and a lower barrel slidably received by the upper barrel. An air seal is fixed to the lower barrel and slidably engages with the upper barrel. A nozzle is attached to the lower barrel opposite to the upper barrel. A stop mechanism prohibits the upper barrel from disassociating with the lower barrel.

Claims (29)

1. An air plunger comprising:

an upper barrel;

a lower barrel slidably received by said upper barrel;

an air seal fixed to said lower barrel and slidably engaged with said upper barrel;

a diverging barrel attached to said lower barrel opposite to said upper barrel; and

a drain seal attached to said diverging barrel.

2. The air plunger of claim 1 wherein said drain seal is a force cup.

3. The air plunger of claim 1 further comprising a lower grip.

4. The air plunger of claim 3 wherein said lower handle is at an intersection of said lower barrel and said diverging barrel.

5. The air plunger of claim 1 wherein said upper barrel moves about 8 to about 12 inches from fully extended to fully compressed.

6. The air plunger of claim 1 further comprising a base for storing said air plunger.

7. The air plunger of claim 1 further comprising a force handle.

8. The air plunger of claim 7 wherein said force handle comprises a cap.

9. The air plunger of claim 1 wherein said diverging barrel is frustoconical.

10. The air plunger of claim 1 wherein said diverging barrel has a large end and a small end and said large end is attached to said lower barrel.

11. An air plunger comprising:

an upper barrel;

a lower barrel slidably received by said upper barrel;

an air seal fixed to said lower barrel and slidably engaged with said upper barrel;

a diverging barrel attached to said lower barrel opposite to said upper barrel;

a drain seal attached to said diverging barrel; and

a cap attached to said upper barrel wherein said cap further comprises a handle.

12. The air plunger of claim 11 wherein said drain seal is a force cue.

13. The air plunger of claim 11 further comprising a lower grip.

14. The air plunger of claim 13 wherein said lower handle is at an intersection of said lower barrel and said diverging barrel.

15. The air plunger of claim 1 wherein said upper barrel moves about 8 to about 12 inches from fully extended to fully compressed.

16. The air plunger of claim 15 wherein said force handle comprises a cap.

17. The air plunger of claim 11 wherein said diverging barrel is frustoconical.

18. The air plunger of claim 11 wherein said diverging barrel has a large end and a small end and said large end is attached to said lower barrel.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 6, 2008
From: LEAPHART, J KIRK, JR; LEAPHART, C MARK
To: 2L PRODUCTS, INC.
Reel/Frame 020609/0396 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 23, 2003
From: 2L PRODUCTS, INC.
To: LEAPHART, J. KIRK, JR.; LEAPHART, C. MARK
Reel/Frame 015027/0167 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2003
From: LEAPHART, J. KRIK JR.; LEAPHART, C. MARK
To: 2L PRODUCTS, INC.
Reel/Frame 014072/0099 →