MXPA00006659A - Vacuum cleaner tank assembly - Google Patents

Abstract

A vacuum cleaner filter bag retainer (10) includes slots (20) on each side which receive a cardboard plate (22) attached to a filter bag. The plate (22) is slid into the slots (20) of the filter bag retainer such that openings in the plate and bag match with an opening in the filter bag retainer (18). The retainer is attached to a tank through an opening (16) in the tank (10), and an inlet fitting (32) extends from outside the tank, through the retainer (18), and into the bag. The inlet fitting (32), therefore, prevents the bag from sliding out of the slots in the retainer. A swivel fitting (38) loosely traps the inlet fitting (32) adjacent the filter bag retainer through threads (28) on the swivel fitting (38) and the retainer (18). The inlet fitting (32) also holds a hose (48) to the inlet fitting.

Description

ASPI RADORA TANK ASSEMBLY ICO TECHNICAL FIELD OF I NVENTION The present invention relates generally to vacuum cleaners and in particular to a vacuum assembly for securely housing a filter bag within a receptacle or tank.

BACKGROUND OF THE I NVENTION Vacuums often include a disposable filter bag. The filter bag collects particulate matter from the air that passes through the filter bag for subsequent disposal. Typically, the filter bag is removably mounted in a tank or other receptacle associated with the vacuum. When the filter bag is full, it is removed and an empty filter bag is installed in the tank. Most filter bags include a cardboard plate with an opening aligned with an opening in the filter bag. To install an empty filter bag in the vacuum tank, in such a way as to prevent unwanted movement of the filter bag, the opening in the cardboard plate is pushed into a filter bag holder. The filter bag holder is connected to the tank of the vacuum cleaner and to a hose. The combination usually remains in place due to friction or an interference fit. An opening in the filter bag holder allows to pass dirty air from the hose to the filter bag where garbage is collected. In order to reduce the amount of dirty air that escapes (ie the air that fails to pass through the filter bag), and help maintain the position of the filter bag, the filter bag holder may include a flange lifted or another stamp. The prior art systems allow an individual to replace the filter bag in such a way as to reduce movement and escape of dirty air, however, these prior art systems suffer from certain disadvantages. The filter bag holder with raised tab requires the user to force and / or bend the cardboard plate to its position. As a result, the user often finds it difficult to install a new filter bag. In addition, damage to the cardboard plate can occur, thereby increasing the amount of dirty air escaping or possibly causing the cardboard plate and bag to move completely.

BRIEF DESCRIPTION OF THE INVENTION According to a first aspect of the invention, there is provided a vacuum assembly for attaching a filter bag to a receptacle, the filter bag includes a plate, and the receptacle including an inlet. The assembly includes a filter bag retainer. The assembly also includes a first fitting extending from outside the receptacle through the tank inlet, through the filter bag retainer, and into the filter bag. A second accessory engages with the filter bag retainer to trap the first accessory adjacent to the filter bag retainer. In some embodiments, the filter bag retainer includes first and second slots for receiving the plate in the filter bag.

In addition, the filter bag retainer may include a cylinder with rope that forms a retainer opening, where the cylinder with string is inserted through the inlet. Still further, the filter bag retainer may include a first opening with rope, and the second accessory may include a second opening with rope, wherein the first opening with rope is adapted to pass through the inlet and mate with the second opening. it matches. In some embodiments, the second accessory is further adapted to attach a hose adjacent to the entry fitting. In a preferred embodiment, the first attachment includes a first protruding member and a second protruding member. In addition, the filter bag retainer comprises a cylinder with rope and a first counter butt. Furthermore, the second accessory includes an internal surface with rope and a second buttress. Accordingly, the assembly is adapted to trap the first protruding member against the first buttress and to trap the second protruding member against the second buttress as the inner surface with rope is tightened to the cylinder with rope. In any of the above, the vacuum assembly may further comprise a hose, wherein the hose comprises a notched opening. In such a case, the second attachment includes a protrusion and the notched opening engages with the protrusion. In the preferred embodiment, the receptacle comprises a tank.

According to another aspect of the invention, a vacuum cleaner is provided. The vacuum includes a receptacle with an inlet. In addition, the vacuum includes a filter bag with a filter bag opening. Still further, the vacuum includes a plate connected to the filter bag, wherein the plate also has an opening. Still further, the vacuum includes a filter bag retainer with first and second retainer slots, a cylinder with rope, and a cylinder buttress, where the plate slides into the retainer slots and the cylinder with string is inserted into the slot. tank opening. In addition, the vacuum includes a first attachment with a protruding end, a non-protruding end, a first protruding member, and a second protruding member, wherein the non-protruding end is inserted through the inlet, the filter bag opening, and the plate opening. Also, the vacuum includes a second accessory with an internal surface with rope and an accessory buttress, where the inner surface with rope engages with the cylinder with rope whereby the first protruding member is forced against the cylinder buttress and the second protruding member against the accessory abutment. In some embodiments, the vacuum cleaner further comprises a hose with external ribs and internal ribs, wherein the outer ribs accommodate the inner surface with rope of the second accessory and the inner ribs engage with the rope end of the first fitting.

BRIEF DESCRIPTION OF THE DRAWINGS These and other aspects and advantages of the present invention will become more apparent from a detailed consideration of the following detailed description of certain preferred embodiments when taken in conjunction with the drawings in which: Figure 1 is an exploded view of a vacuum tank assembly, constructed in accordance with the teachings of the present invention. Figure 2 is a front view of a filter bag assembly. Figure 3 is a top plan view of the vacuum tank assembly of Figure 1. Figure 4 is a cross-sectional view taken generally along line 3-3 of Figure 2. Figure 5 is an enlarged view of detail A in Figure 3.

DETAILED DESCRIPTION OF PREFERRED MODALITIES Vacuums typically comprise an engine assembly, a tank or other receptacle, a cover, a motor assembly, a hose inlet in the receptacle, and a hose that attaches to the hose inlet at one end and has a mouthpiece at the other end. The lid has an edge which is designed to fit over the edge of the vacuum receptacle. Around the periphery of the lid there are several knock holes which cooperate with latches in the receptacle in order to hold the lid in the receptacle. The cap houses an engine assembly that is in air flow communication with the receptacle through a filter. Generally, the motor assembly includes an electric motor, a power cord for use with an electrical outlet, an air impeller, various housings, and other associated equipment. The engine assembly motor activates an impeller that creates a low pressure area inside the receptacle. The pressure difference between the inside and outside of the receptacle creates a suction effect on the hose inlet, which causes dust, debris, and liquids to enter the receptacle through the hose. Referring to Figure 1 and Figure 2, a vacuum tank or receptacle 10 (Figure 1) is used to house a filter bag 12 (Figure 2). The filter bag 2 includes an opening 14 surrounded by a package 15 through which air containing particulate matter for filtration can pass. The tank 10 includes an inlet 16 through which the air can pass to the opening 14 of the filter bag. The filter bag 12 can be made from a variety of materials including, but are not limited to, paper, foam, fabric or other woven materials. The filter bag 12 is securely held in place within the filter tank 10, in part, by a filter bag retainer 18. The filter bag retainer 18 may be formed of plastic materials, such as polypropylene, polyethylene, ABS, and / or similar materials. Preferably, the filter bag retainer 18 includes two slots 20. The slots 20 are used to receive a plate 22 in the filter bag 12. Preferably, the plate 22 is made of cardboard and contains an opening 24 substantially the same size as the inlet 16. The plate 22 is permanently attached to the filter bag 12 in a known manner such that the plate opening 24 substantially aligns with the opening 14 of the filter bag, whereby a filter bag assembly 26 is created. The filter bag retainer 18 includes a cylinder 28 with rope that forms a retainer opening 30. In addition, the cylinder 28 with rope includes a cylinder buttress 31. Preferably, the retainer opening 30 is substantially the same size as the opening 14 of the filter bag, the opening 24 of the plate, and the inlet 16. In a preferred embodiment, the filter bag assembly 26 is attached to the retainer 18. of the filter bag by sliding the plate 22 into the slots 20 of the retainer. The filter bag assembly 26 is then held in place inside the tank 10 by inserting the cylinder 28 with rope through the inlet 16 from the inside of the tank 10 to the outside of the tank 10. As a result, the inlet 16, the opening 30 of the retainer, the opening 24 of the plate, and the opening 14 of the filter bag are aligned coaxially. For the purpose of restricting both horizontal and vertical movement of the aligned openings (14, 16, 24, 30), an inlet fitting 32 is provided. The input fitting 32 is cylindrical in shape with a protruding end 34 and a non-protruding end 36. By inserting the non-protruding end 36 of the entry fitting 32 through the aligned openings (14, 16, 24, 30) in a direction from outside the tank 10 into the tank 10, the filter bag assembly 26 is prevented from slide out of the slots 20 of the retainer. Accordingly, the filter bag 12 is secured to the retainer 18 by the inlet fitting 32 within the tank 10, and particulate air can easily pass through all the openings (14, 16, 24, 30). For the purpose of loosely catching the inlet fitting 32 adjacent the retainer 18 of the filter bag, a rotary accessory 38 is provided. The swivel fitting 38 is cylindrical in shape and includes an inner surface 40 with rope and a buttress 42 of a rotating fitting. The inner surface 40 with rope of the rotating fitting 38 engages and joins the cylinder 28 with rope of the filter bag retainer 18 by rotation of the rotating fitting 38. As the rotating fitting 38 is tightened in the filter bag retainer 18, a first protruding member 44 of the input fitting 32 is loosely trapped adjacent the counter butt 31 of the cylinder, and a second protruding member 46 of the input fitting 32 it is trapped loosely adjacent to the abutment 42 of the rotating fitting (see Figures 3-5). In addition, a hose 48 is provided. The hose 48 includes a series of external ribs 52 and a series of internal ribs 54 that form a notched opening. The internal ribs 54 engage and engage with the second protruding member 46 of the input fitting 32 preferably using a tight fit in a known manner. In this configuration, the end of the hose 48 can travel with the rotating swivel fitting 38 (see Figures 3-5). In summary, persons of ordinary skill in the art will readily appreciate that a vacuum tank assembly has been provided to securely house a filter bag inside a vacuum tank. The systems implementing the teachings of the invention do not require the user to force and / or bend the cardboard plate to its position. As a result, users will find it easy to install a new filter bag. In addition, less damage will occur to the cardboard plate, thereby decreasing the amount of dirty air that escapes. The foregoing description has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form described. Many modifications and variations are possible in light of the previous teachings. It is intended that the scope of the invention be limited not by this detailed description, but rather by the claims appended hereto.

Claims (10)

1. REVIVAL NAMES 1. A vacuum assembly for attaching a filter bag to a receptacle, the receptacle including an inlet, the assembly comprising: a filter bag retainer; a first accessory extending from outside the receptacle through the inlet, through the filter bag retainer, and into the filter bag; and, a second accessory that engages with the filter bag retainer to trap the first accessory adjacent to the filter bag retainer.
2. 2. The vacuum cleaner assembly defined in claim 1, wherein the filter bag retainer comprises first and second slots for receiving a plate in the filter bag.
3. The vacuum cleaner assembly defined in claim 1, wherein the filter bag retainer further comprises a cylinder with rope that forms a retainer opening, wherein the cylinder with string is inserted through the inlet.
4. The vacuum cleaner assembly defined in claim 1, wherein the filter bag retainer comprises a first opening with rope, and the second accessory comprises a second opening with rope, the first opening with rope is adapted to pass through. the entrance and fit with the second opening with rope.
5. The vacuum cleaner assembly defined in claim 1, wherein the second accessory is further adapted to hold a hose adjacent to the inlet fitting.
6. 6. The vacuum assembly defined in claim 1, wherein the first attachment comprises a first protruding member and a second protruding member; the filter bag retainer comprises a cylinder with rope and a first counter butt; the second accessory comprises an inner surface with rope and a second buttress; and the assembly is adapted to loosely catch the first protruding member against the first abutment and to loosely trap the second protruding member against the second abutment as the inner surface with cord is tightened to the cylinder with rope.
7. The vacuum cleaner assembly defined in claim 1, further comprising a hose, wherein the hose comprises a notched opening, the first accessory comprises a protruding member, and the notched opening engages with the protruding member.
8. 8. The vacuum assembly defined in claim 1, wherein the receptacle comprises a tank.
9. 9. A vacuum assembly comprising: a receptacle including an inlet; a filter bag that includes a filter bag opening; a plate connected to the filter bag, wherein the plate includes a plate opening; a filter bag retainer including first and second retainer slots, a cylinder with rope, and a cylinder buttress, wherein the plate slides into the retainer slots and the cylinder with string is inserted into the opening of the tank; a first attachment that includes a protruding end, a non-protruding end, a first protruding member, and a second protruding member, wherein the non-protruding end is inserted through the inlet, the opening of the filter bag, and the opening license plate; and a second accessory that includes an internal surface with rope and an accessory buttress, where the inner surface with rope engages with the cylinder with rope so it traps the first protruding member adjacent to the buttress of the cylinder and traps the second protruding member adjacent to the abutment of the accessory. The vacuum cleaner defined in claim 9, further comprising a hose including external ribs and internal ribs, wherein the inner ribs engage the protruding end of the first fitting.