Fitting for vacuum bags

• US 6,451,078 B2
• Filed: 12/19/2000
• Issued: 09/17/2002
• Est. Priority Date: 07/07/1999
• Status: Expired due to Term

• Current Assignee: Shop-Vac Corporation (Hangzhou Great Star Industrial Company Limited)
• Original Assignee: Shop-Vac Corporation (Hangzhou Great Star Industrial Company Limited)
• Inventors: Berfield, Robert C., Crevling, Robert Lent
• Primary Examiner(s): Hopkins, Robert A.
• Application Number:
  US09/740,697
• Publication Number:
  US 20010005983A1
• Time in Patent Office: 637 Days
• Field of Search: 553/74, 553/78, 554/18, 555/05, 55D/IG.2, 55D/IG.3, 153/47, 153/53
• US Class Current: 55/374
• CPC Class Codes: A47L 7/0019 Details of the casing
• CPC Class Codes: A47L 7/0038 with means for emptying the tanks
• CPC Class Codes: A47L 9/1427 Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
• CPC Class Codes: Y10S 55/02 Vacuum cleaner bags
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

A fitting for a vacuum cleaner is disclosed. The fitting includes a retainer having first and second grooves within which a fitting is adapted to slide. The fitting includes a plate from which a cylinder extends and terminates in a radially inwardly directed deflector. Depending upon the orientation of the fitting within the retainer, the incoming fluid stream is directed in an upward or downward direction to thereby facilitate usage of the fitting with or without a vacuum bag, while at the same time minimizing the potential for splashing and expulsion of liquid drawn into the vacuum cleaner.

Claims

1. A vacuum cleaner, comprising:

a tank having a side wall, closed bottom wall and open top, an inlet being provided in the tank side wall;

a lid removably attached to the tank open top;

a motor/impeller unit mounted within the lid;

a vacuum bag retainer mounted to the tank side wall, an inlet of the vacuum bag retainer extending through the tank side wall inlet;

a vacuum bag fitting connected to the vacuum bag retainer, the vacuum bag fitting including a deflector;

a vacuum bag attached to the vacuum bag fitting; and

a vacuum hose extending through the tank inlet, vacuum bag retainer, vacuum bag fitting, and vacuum bag.

2. The vacuum cleaner of claim 1, wherein the vacuum bag retainer includes first and second opposed slots and the vacuum bag fitting slidably connects to the vacuum bag retainer.

3. The vacuum cleaner of claim 2, wherein the vacuum bag fitting includes a plate adapted to slide within the first and second opposed slots, the plate including an aperture, a cylinder extending from the plate proximate the plate aperture and terminating in the deflector.

4. The vacuum cleaner of claim 3, wherein the cylinder includes an inlet proximate the plate aperture and an outlet in a side wall of the vacuum bag fitting cylinder.

5. The vacuum cleaner of claim 4, wherein the vacuum bag fitting is insertable in the vacuum bag retainer into at least two positions, the cylinder outlet opening upward in a first position, the cylinder outlet opening downward in a second position.

6. The vacuum cleaner of claim 5, wherein the lid further includes a shroud depending therefrom, the cylinder outlet opening proximate the shroud when the vacuum bag fitting is in the first position.

9. The vacuum cleaner of claim 1, wherein the vacuum hose is attachable to the vacuum cleaner inlet and a blower outlet of the vacuum cleaner.

10. The vacuum cleaner of claim 9, wherein the vacuum cleaner hose includes a threaded nut adapted to attach to the vacuum bag retainer.

11. The vacuum cleaner of claim 1, wherein the vacuum bag retainer, vacuum bag fitting and vacuum hose are manufactured from plastic.

7.

8. The vacuum cleaner of claim 7, wherein the collar is held between the vacuum bag retainer and the vacuum bag fitting plate.

12. The vacuum cleaner of claim 7 wherein the vacuum bag fitting and vacuum bag include a one-way attachment mechanism to ensure the deflector extends downwardly in the bag.

13. The vacuum cleaner of claim 12 wherein the one-way attachment mechanism includes at least one clip extending from the vacuum bag fitting and at least one recess, the clip being adapted to matingly attach to the recess to ensure the deflector is positioned downwardly in the bag.

14. A vacuum bag fitting, comprising:

a plate having an aperture therein;

a cylinder having an inlet and an outlet, the cylinder extending from the plate, the cylinder inlet being concentric with the plate aperture, a longitudinal axis passing through the cylinder; and

a deflector extending from the cylinder proximate the cylinder outlet, the deflector extending toward the longitudinal axis, the deflector extending in a first direction when vacuuming wet debris, the deflector extending in a second, different, direction when vacuuming dry debris.

15. The vacuum bag fitting of claim 14, wherein the deflector extends across substantially all of the cylinder, and the cylinder outlet is provided in a side wall of the cylinder.

16. The vacuum bag fitting of claim 14, wherein the vacuum bag fitting is removable with multiple vacuum bags.

17. The vacuum bag fitting of claim 14, wherein the vacuum bag fitting is manufactured from plastic.

18. The vacuum bag fitting of claim 14 further including first and second clips extending from the plate, the first and second clips adapted to ensure attachment to a vacuum bag in only one position.

19. A vacuum bag fitting assembly, comprising:

a vacuum bag retainer having a backplate and first and second slots, an aperture being provided in the backplate with the first and second slots laterally flanking the aperture; and

a vacuum bag fitting adapted to connect to a vacuum bag and removably attach to the vacuum bag retainer, the vacuum bag fitting including a plate having an aperture therein and a cylinder extending away from the plate and circumscribing the aperture, the cylinder terminating in a radially inwardly directed deflector, the plate adapted to slide within the first and second slots of the vacuum bag retainer, the deflector extending in a first direction when vacuuming wet debris, and in a second, different, direction when vacuuming dry debris.

20. The vacuum bag fitting assembly of claim 19, wherein the vacuum bag fitting cylinder includes an inlet and an outlet, the inlet being provided proximate the plate aperture, the outlet being provided in a side wall of the cylinder.

21. The vacuum bag fitting assembly of claim 19 wherein the vacuum bag fitting includes at least one clip adapted to connect to a vacuum bag in only one position.

22. A method of attaching a vacuum bag to a vacuum cleaner, comprising the steps of:

inserting a vacuum bag fitting into a vacuum bag, the vacuum bag fitting including a plate from which a deflector extends, the deflector extending in a first direction when vacuuming wet debris and in a second, different, direction when vacuuming dry debris;

attaching the vacuum bag fitting to a vacuum bag retainer provided within a tank of the vacuum cleaner, inlets of the vacuum bag, vacuum bag fitting and vacuum bag retainer being aligned; and

pushing a vacuum hose through the inlets of the vacuum bag, vacuum fitting and vacuum bag retainer.

23. The method of claim 22, wherein the attaching step involves sliding sides of the vacuum bag fitting into slots of the vacuum bag retainer.

24. The method of claim 22, further including the step of securing the vacuum hose after the pushing step.

25. The method of claim 24, wherein the securing step is performed using a threaded nut provided on the hose and mating threads provided on the vacuum bag retainer.

26. The method of claims 22, wherein the inserting step includes the step of fitting a clip extending from the vacuum bag fitting into a recess provided on a collar of the bag.

27. In a vacuum cleaner of the type having a tank, a lid, a motor/impeller mounted in the lid, an inlet to the tank, and a hose adapted to be used for vacuuming and blowing;

the improvement comprising;

a bag mounting structure mounted within the tank proximate the inlet; and

a deflector adapted to direct an incoming fluid stream into one of a bag and the tank, the deflector being mounted in the bag mounting structure in a downward direction when the fluid stream is dry, the deflector being mounted in the bag mounting structure in an upward direction when the fluid stream is wet.