VACUUM CLEANER
A vacuum cleaner including a motor housing having a suction source, a suction opening, an exhaust opening, and an air passageway in fluid communication with the suction source and the exhaust opening. A filter receives the suction airflow between the suction opening and the exhaust opening and the filter is expandable in response to the suction airflow traveling through the filter. The vacuum further includes a container in which the filter is located and the container includes a wall and ribs. The ribs limit expansion of the filter to create a gap between the filter and the wall. The suction airflow travels from the filter through the gap towards the exhaust opening. The motor housing is releasably coupled to the container, and the gap between the filter and the container wall is in fluid communication with the motor housing air passageway.
This application claims priority to U.S. Provisional Patent Application No. 62/637,858 filed Mar. 2, 2018, the entire contents of which are hereby incorporated by reference herein.
BACKGROUNDThe present invention relates to vacuum cleaners.
Vacuum cleaners typically include a suction source that draws debris into a debris separator. In some vacuum cleaners the debris separator is a cyclonic separator assembly. In some vacuum cleaners the debris separator is a filter bag. The filter bag both filters the suction airflow and also stores the debris in the bag. The bag is emptied or replaced when the bag is full. Changing the filter bag can require disassembly of the vacuum to access the compartment where the bag is housed in the vacuum.
In addition to the primary debris separator, vacuum cleaners can include additional filters, such as pre and post motor filters. These filters also require periodic replacement.
SUMMARYIn one embodiment a vacuum cleaner includes a motor housing including a suction source operable to generate a suction airflow and a suction opening in fluid communication with the suction source. The suction opening is configured to receive airflow entering the vacuum cleaner. The motor housing further includes an exhaust opening in fluid communication with the suction source configured to discharge the airflow from the vacuum cleaner and an air passageway in fluid communication with the suction source and the exhaust opening. The vacuum further includes a container and a filter that receives the suction airflow between the suction opening and the exhaust opening. The filter is expandable in response to the suction airflow traveling through the filter and the filter is configured separate debris from the suction airflow and store the debris within the filter. The container is where the filter is located and the container includes a wall and ribs. The ribs limit expansion of the filter to create a gap between the filter and the wall and the suction airflow travels from the filter through the gap towards the exhaust opening. The motor housing is releasably coupled to the container and the gap between the filter and the container wall is in fluid communication with the motor housing air passageway.
In another embodiment a vacuum cleaner includes a suction source operable to generate a suction airflow, a suction opening in fluid communication with the suction source configured to receive airflow entering the vacuum cleaner, an exhaust opening in fluid communication with the suction source configured to discharge the airflow from the vacuum cleaner, and a filter that receives the suction airflow between the suction opening and the exhaust opening. The filter is configured separate debris from the suction airflow and store the debris within the filter. The vacuum further includes a container in which the filter is located and a lid releasably coupled to the container. The lid is movable between an open position and a closed position. The lid includes a plenum that is in a flow path of the suction airflow between the filter and the exhaust opening.
In another embodiment, a vacuum cleaner includes a suction opening in fluid communication with the suction source configured to receive airflow entering the vacuum cleaner, an exhaust opening in fluid communication with the suction source configured to discharge the airflow from the vacuum cleaner, and a debris separator that receives the suction airflow between the suction opening and the exhaust opening. The debris separator is configured separate debris from the suction airflow and store the debris within the debris separator. The vacuum further includes a container in which the debris separator is located and a suction source operable to generate a suction airflow. The suction source includes a motor in an airflow passageway between the debris separator and the exhaust opening. The vacuum further includes a filter that surrounds the motor around a motor axis.
Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways.
DETAILED DESCRIPTIONReferring to
The suction opening 18 is in fluid communication with the suction source 16 as will be discussed in more detail below. The suction opening 18 receives the suction airflow entering the vacuum cleaner 10. In the illustrated embodiment a suction hose 28 (
Referring to
Referring to
Referring to
Referring to
Referring to
The ribs 48 extend from the walls 46. In the embodiment of
In operation, the suction source 16 generates the suction airflow that draws the airflow and debris into the vacuum 10 through the suction opening 18. The airflow and debris travel through the supply duct 32 and into the filter 42. The airflow causes the filter 42 to expand to the position shown in
In the illustrated embodiment, such as shown in
Referring to
Referring to
Various features and advantages of the invention are set forth in the following claims.
Claims
1. A vacuum cleaner comprising:
- a motor housing including; a suction source operable to generate a suction airflow; a suction opening in fluid communication with the suction source, the suction opening configured to receive airflow entering the vacuum cleaner; an exhaust opening in fluid communication with the suction source configured to discharge the airflow from the vacuum cleaner; and an air passageway in fluid communication with the suction source and the exhaust opening;
- a filter that receives the suction airflow between the suction opening and the exhaust opening, the filter expandable in response to the suction airflow traveling through the filter, the filter configured separate debris from the suction airflow and store the debris within the filter; and
- a container in which the filter is located, the container includes a wall and ribs,
- wherein the ribs limit expansion of the filter to create a gap between the filter and the wall, and wherein the suction airflow travels from the filter through the gap towards the exhaust opening;
- wherein the motor housing is releasably coupled to the container such that the motor housing is movable between an open position and a closed position, and
- wherein the gap between the filter and the container wall is in fluid communication with the motor housing air passageway when the motor housing is in the closed position and the motor housing air passageway and the gap are disconnected from fluid communication when the motor housing is in the open position,
- wherein the motor housing includes a supply duct that provides fluid communication between the suction opening and the filter, wherein the supply duct is disconnected from fluid communication with the filter when the motor housing is in the open position and the supply duct is connected to the filter for fluid communication when the motor housing is in the closed position.
2. The vacuum cleaner of claim 1, wherein the ribs extend from the wall.
3. The vacuum cleaner of claim 2, wherein the ribs are integrally formed with the wall.
4. The vacuum cleaner of claim 3, further comprising a foam housing, wherein the container is located inside the housing.
5. The vacuum cleaner of claim 1, wherein the wall is an interior wall of the container and the ribs are removable from the wall.
6. The vacuum cleaner of claim 1, wherein the gap between the filter and the container wall is aligned with the motor housing air passageway.
7. The vacuum cleaner of claim 1, wherein the wall includes a foam wall.
8. The vacuum cleaner of claim 1, further comprising a shoulder harness such that the vacuum cleaner is a backpack vacuum cleaner.
9. The vacuum cleaner of claim 1, wherein the motor housing includes a plenum that is in a flow path of the suction airflow between the filter and the exhaust opening.
10. The vacuum cleaner of claim 1, wherein in the open position of the motor housing, the filter is accessible by a user to remove the filter from the container.
11. The vacuum cleaner of claim 9, wherein the plenum is in the flow path of the suction airflow between the filter and the suction source.
12. (canceled)
13. The vacuum cleaner of claim 1, wherein the supply duct extends through the plenum.
14. The vacuum cleaner of claim 9, wherein the container includes an air return passageway, wherein the motor housing includes a plenum inlet opening corresponding with the air return passageway, and wherein the plenum inlet opening and the air return passageway of the container are connected for fluid communication when the motor housing is in the closed position and the plenum inlet opening and the air return passageway are disconnected from fluid communication when the motor housing is in the open position.
15. The vacuum cleaner of claim 14, wherein the gap forms the air return passageway such that the suction airflow travels from the filter through the gap towards the plenum.
16. The vacuum cleaner of claim 1, wherein the suction source includes a motor, the vacuum cleaner further comprising a second filter that surrounds the motor around a motor axis.
17. The vacuum cleaner of claim 16, wherein the motor housing air passageway is configured for airflow to enter the second filter 360 degrees around the motor axis.
18. The vacuum cleaner of claim 16, further comprising a filter lid, the filter lid removably coupled to the motor housing of the vacuum to allow access to the second filter.
19. The vacuum cleaner of claim 18, wherein the filter lid is inaccessible when the motor hosing is in the closed position and the filter lid is accessible by a user to open the filter lid when the motor housing of the vacuum is in the open position.
20. The vacuum cleaner of claim 18, wherein the filter lid presses the second filter against a filter seat to seal the second filter in the motor housing air passageway.
21. The vacuum cleaner of claim 1, wherein the container includes a first side and a second side opposite the first side, wherein the motor is adjacent the first side of the container and the supply duct is disconnected from fluid communication with the filter and connected to the filter for fluid communication adjacent the first side of the container.
Type: Application
Filed: Mar 1, 2019
Publication Date: Dec 24, 2020
Inventor: Robert McRorie (Huntersville, NC)
Application Number: 16/977,656