Vacuum cleaner dirt cup and seal

• US 8,402,599 B2
• Filed: 09/01/2010
• Issued: 03/26/2013
• Est. Priority Date: 09/01/2010
• Status: Active Grant

• Current Assignee: Techtronic Floor Care Technology Limited (Techtronic Industries Company Limited)
• Original Assignee: Techtronic Floor Care Technology Limited (Techtronic Industries Company Limited)
• Inventors: Charlton, Christopher M., Kawolics, Raymond P.
• Primary Examiner(s): REDDING, DAVID A
• Application Number:
  US12/873,990
• Publication Number:
  US 20120047681A1
• Time in Patent Office: 937 Days
• Field of Search: 153/52, 153/53, 554/30, 554/32, 554/33, 55D/IG.3, 553/37
• US Class Current: 15/352
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: A47L 9/1683 Dust collecting chambers; Dust collecting receptacles

Abstract

A dirt cup for a vacuum cleaner including a container, a tube, a lid, a first chamber, a second chamber, and a seal. The container includes an open bottom end. The lid is coupled to the container. The lid includes an aperture that extends through the lid. The lid is movable between a closed position where the lid covers the open bottom end and an open position for emptying the container through the open bottom end. The seal is coupled to the lid and includes a flange and a post that extends from the flange. The post extends into the aperture of the lid to couple the seal to the lid. The seal is positioned between the lid and the tube when the lid is in the closed position to inhibit airflow between the first chamber and the second chamber.

Claims

1. A dirt cup for use in a vacuum cleaner, the dirt cup comprising:

a container including an interior surface and an open bottom end;

a tube including an interior surface and an exterior surface, the tube positioned in the container;

a lid coupled to the container, the lid including an upper surface, a lower surface, a region extending between the lower surface and the upper surface, and an aperture that extends through the lid, the lid movable between a closed position where the lid covers the open bottom end and an open position for emptying the container through the open bottom end;

a first chamber at least partially defined by the lid, the exterior surface of the tube, and the interior surface of the container when the lid is in the closed position;

a second chamber at least partially defined by the lid and the interior surface of the tube when the lid is in the closed position; and

a seal coupled to the lid and including a flange, an intermediate portion extending from the flange, and a post that extends from the flange, the post extending into the aperture of the lid to couple the seal to the lid;

wherein the seal is positioned between the lid and the tube when the lid is in the closed position to inhibit airflow between the first chamber and the second chamber.

2. The dirt cup of claim 1, wherein the post includes a rib, wherein the lid includes an outer surface, and wherein the post extends through the aperture and the rib contacts the outer surface to couple the seal to the lid.

3. The dirt cup of claim 1, wherein the lid includes an outer periphery, the dirt cup further comprising:

a second seal secured at the outer periphery of the lid, the second seal contacting the interior surface of the container when the lid is in the closed position to inhibit air flow between the first chamber and the exterior of the container.

4. The dirt cup of claim 1, wherein the region of the lid includes an angled surface between the lower surface and the upper surface so that the region is substantially frustoconical in shape, wherein the intermediate portion of the seal is angled relative to the flange so that the seal is substantially frustoconical in shape, and wherein the tube includes a bottom portion angled outwardly from the exterior surface of the tube so that the bottom portion is substantially frustoconical in shape, and wherein the intermediate portion of the seal is positioned between the angled surface of the region and the bottom portion of the tube when the lid is in the closed position.

5. The dirt cup of claim 4, wherein the intermediate portion of the seal includes a seal projection that is convex and resilient, the seal projection compressed between the angled surface of the region and the bottom portion of tube when the lid is in the closed position.

6. The dirt cup of claim 1, wherein the intermediate portion of the seal includes a convex seal projection that is compressed between the lid and the tube when the lid is in the closed position.

7. The dirt cup of claim 1, wherein the lid further includes a channel formed in the upper surface, wherein the seal further includes a protrusion, the intermediate portion extending between the flange, and wherein the protrusion and the protrusion is received by the channel.

8. A dirt cup for use in a vacuum cleaner, the dirt cup comprising:

a container including an interior surface and an open bottom end;

a tube including an interior surface, an exterior surface, and a frustoconical bottom portion, the tube positioned in the container;

a lid coupled to the container, the lid including a lower surface, an upper surface, and a frustoconical region extending between the lower surface and the upper surface, the lid movable between a closed position where the lid covers the open bottom end and an open position for emptying the container through the open bottom end;

a first chamber at least partially defined by the lid, the exterior surface of the tube, and the interior surface of the container when the lid is in the closed position;

a second chamber at least partially defined by the lid and the interior surface of the tube when the lid is in the closed position; and

a seal coupled to the lid and including a flange and a frustoconical intermediate portion extending from the flange;

wherein the frustoconical intermediate portion of the seal is positioned between the frustoconical region and the frustoconical bottom portion of the tube when the lid is in the closed position to inhibit airflow between the first chamber and the second chamber when the lid is in the closed position.

9. The dirt cup of claim 8, wherein the lid further includes an aperture that extends through the lid and wherein the seal further includes a post that extends from the flange and into the aperture to couple the seal to the lid.

10. The dirt cup of claim 9, wherein the post includes a rib, wherein the lid includes an outer surface, and wherein the post extends through the aperture and the rib contacts the outer surface to couple the seal to the lid.

11. The dirt cup of claim 8, wherein the lid includes an outer periphery, the dirt cup further comprising:

a second seal secured at the outer periphery of the lid, the second seal contacting the interior surface of the container when the lid is in the closed position to inhibit air flow between the first chamber and the exterior of the container.

12. The dirt cup of claim 8, wherein the intermediate portion of the seal includes a seal projection that is convex and resilient, the seal projection compressed between the frustoconical region and the bottom portion of tube when the lid is in the closed position.

13. The dirt cup of claim 8, wherein the lid further includes a channel formed in the upper surface and the seal further includes a protrusion so that the intermediate portion extends between the flange and the protrusion is received by the channel.

14. A dirt cup for use in a vacuum cleaner, the dirt cup comprising:

a container including an outer wall and an open bottom end, the outer wall including an interior surface;

a tube including an interior surface and an exterior surface, the tube positioned in the container;

a lid coupled to the container, the lid including a lower surface, an upper surface, an outer periphery, and a region extending between the lower surface and the upper surface, the lid movable between a closed position where the lid covers the open bottom end and an open position for emptying the container through the open bottom end;

a first chamber at least partially defined by the lid, the exterior surface of the tube, and the interior surface of the container when the lid is in the closed position;

a second chamber at least partially defined by the lid and the interior surface of the tube when the lid is in the closed position; and

a first seal including a seal projection that is convex and resilient, the first seal coupled to the lid and positioned between the lid and the tube when the lid is in the closed position;

a second seal secured at the outer periphery of the lid, the second seal contacting the interior surface of the outer wall of the container when the lid is in the closed position to inhibit air flow between the first chamber and an exterior of the container,

wherein the first seal inhibits airflow between the first chamber and the second chamber when the lid is in the closed position.

15. The dirt cup of claim 14, wherein the seal projection is compressed between the lid and the tube when the lid is in the closed position.

16. The dirt cup of claim 15, wherein the lid further includes a latch arm, wherein the container further includes a lip, and wherein in a locked position the latch arm engages the lip to lock the lid in the closed position.

17. The dirt cup of claim 16, wherein the seal projection biases the lid toward the open position when the lid is in the closed position.

18. The dirt cup of claim 17, wherein the lid further includes an aperture that extends through the lid and wherein the first seal further includes a post that extends from the flange and into the aperture to couple the first seal to the lid.

19. The dirt cup of claim 18, wherein the post includes a rib, wherein the lid includes an outer surface, and wherein the post extends through the aperture and the rib contacts the outer surface to couple the seal to the lid.

20. A dirt cup for use in a vacuum cleaner, the dirt cup comprising:

a container including an interior surface and an open bottom end;

a tube including an interior surface, an exterior surface, and a frustoconical bottom portion, the tube positioned in the container;

a lid coupled to the container, the lid including a lower surface, an upper surface, and a frustoconical region extending between the lower surface and the upper surface, the lid movable between a closed position where the lid covers the open bottom end and an open position for emptying the container through the open bottom end;

a first chamber at least partially defined by the lid, the exterior surface of the tube, and the interior surface of the container when the lid is in the closed position;

a second chamber at least partially defined by the lid and the interior surface of the tube when the lid is in the closed position; and

a seal coupled to the lid and including a flange and a frustoconical intermediate portion extending from the flange,

wherein the frustoconical intermediate portion of the seal is positioned between the frustoconical region and the frustoconical bottom portion of the tube when the lid is in the closed position to inhibit airflow between the first chamber and the second chamber when the lid is in the closed position, and

wherein the lid further includes a channel formed in the upper surface and the seal further includes a protrusion so that the intermediate portion extends between the flange and the protrusion is received by the channel.

21. A dirt cup for use in a vacuum cleaner, the dirt cup comprising:

a container including an interior surface and an open bottom end;

a tube including an interior surface and an exterior surface, the tube positioned in the container;

a lid coupled to the container, the lid including a lower surface, an upper surface, and a region extending between the lower surface and the upper surface, the lid movable between a closed position where the lid covers the open bottom end and an open position for emptying the container through the open bottom end;

a first chamber at least partially defined by the lid, the exterior surface of the tube, and the interior surface of the container when the lid is in the closed position;

a second chamber at least partially defined by the lid and the interior surface of the tube when the lid is in the closed position; and

a seal including a seal projection that is convex and resilient, the seal coupled to the lid and positioned between the lid and the tube when the lid is in the closed position,

wherein the seal inhibits airflow between the first chamber and the second chamber when the lid is in the closed position,

wherein the seal projection is compressed between the lid and the tube when the lid is in the closed position,

wherein the lid further includes a latch arm, wherein the container further includes a lip, and wherein in a locked position the latch arm engages the lip to lock the lid in the closed position,

wherein the seal projection biases the lid toward the open position when the lid is in the closed position,

wherein the lid further includes an aperture that extends through the lid and wherein the seal further includes a post that extends from the flange and into the aperture to couple the seal to the lid.

22. The dirt cup of claim 21, wherein the post includes a rib, wherein the lid includes an outer surface, and wherein the post extends through the aperture and the rib contacts the outer surface to couple the seal to the lid.