Filter recongnition system

Patent metadata

Field	Value
Publication number	US-9370741-B2
Application number	US-201013391931-A
Country	US
Kind code	B2
Filing date	Aug 25, 2010
Priority date	Aug 25, 2009
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

A filter recognition system for use with an air purifier is provided. The air filter assembly or filter clip includes identification pins/taps which are read by the air purifier to determine the filter type. The filter recognition system adjusts the motor parameter based on the filter type. Additionally, the filter recognition system adjusts the filter timer to automatically communicate to a user the recommended time to change the filter based on the identified filter type.

First claim

What is claimed is:

1. An air filter assembly for use with an air purifier comprising:
a frame having an outer surface defining a cavity;
a filter element positionable within the cavity of the frame;
a filter identifier including at least one removable protrusion extending from the outer surface of the frame and configured to physically engage the air purifier, wherein a position of the at least one removable protrusion on the frame identifies to the air purifier the type of the filter element.

2. An air filter assembly for use with an air purifier as set forth in claim 1 , wherein the position of the at least one removable protrusion on the frame is configured to identify a usable life span of the filter element.

3. An air filter assembly for use with an air purifier as set forth in claim 1 , wherein the at least one removable protrusion includes at least one removable tab element.

4. An air filter assembly for use with an air purifier as set forth in claim 1 , wherein the at least one removable protrusion includes at least one of removable pin element.

5. An air filter assembly for use with an air purifier as set forth in claim 1 , the frame being substantially rectangular in shape having first, second, third, and fourth sidewall defining the outer surface, and the filter identifier positioned on at least one of the first, second, third, or fourth sidewalls.

6. An air filter assembly for use with an air purifier as set forth in claim 5 , wherein the at least one removable protrusion includes plurality of removable tab elements.

7. An air filter assembly for use with an air purifier as set forth in claim 5 , wherein the at least one removable protrusion includes plurality of removable pin elements.

8. An air filter assembly for use with an air purifier as set forth in claim 1 , further including a hanger clip removably attached to the outer surface of the frame, the filter identifier being affixed on the hanger clip.

9. An air purifying device comprising:
a housing including an air inlet and an air outlet;
a fan including a motor and a fan blade positioned within said housing for drawing air into said housing through said air inlet and expelling air through said air outlet;
a filter recognition system including at least one contact switch and a logic circuit; and
a filter assembly positioned within said housing between said air inlet and said fan, said filter assembly including a filter element and a filter identifier including at least one removable protrusion configured to physically engage the at least one contact switch of the filter recognition system, wherein a position of the at least one removable protrusion on the filter assembly identifies a type of the filter element in the filter assembly.

10. An air purifying device as set forth in claim 9 , wherein the position of the at least one removable protrusion on the frame is configured to identify a usable life span of the filter element.

11. An air purifying device as set forth in claim 9 , wherein the at least one removable protrusion includes at least one removable tab element.

12. An air purifying device as set forth in claim 9 , wherein the at least one removable protrusion includes at least one removable pin element.

13. An air purifying device as set forth in claim 9 , wherein the filter assembly comprises:
a frame being substantially rectangular in shape having first, second, third, and fourth sidewall defining a cavity;
a filter element positionable within the cavity of the frame,
the filter identifier positioned on at least one of the first, second, third, or fourth sidewalls.

14. An air purifying device as set forth in claim 13 , wherein the at least one removable protrusion of the filter identifier includes at least one removable tab element.

15. An air purifying device as set forth in claim 13 , wherein the at least one removable protrusion of the filter identifier includes at least one removable pin element.

16. An air purifying device as set forth in claim 13 , further including a hanger clip removably attached to at least one of the first, second, third, or fourth sidewalls, the filter identifier being positioned on the hanger clip.

17. An air purifying device as set forth in claim 9 , wherein the filter assembly comprises
a frame having an outer surface defining a cavity; and
a filter dement positionable within the cavity of the frame.

18. An air purifying device as set forth in claim 9 , wherein the filter recognition system include at least one switch selectively engagable by the filter identifier.

19. An air filter assembly for use with an air purifier comprising:
a frame having an outer surface defining a cavity;
a filter element positionable within the cavity of the frame;
a hanger clip removably attached to the outer surface of the frame,
a filter identifier including a plurality of protrusions molded onto and extending from the hanger clip and configured to physically engage the air purifier, wherein the filter identifier is configured to identify the type of the filter element.

Assignees

• Horey Leonard
• Richardson Otha
• Sunbeam Products Inc

Inventors

• Horey Leonard
• Richardson Otha

Classifications

• B01D46/009

  Identification of filter type or position thereof, e.g. by transponders or bar codes · CPC title

• B01D46/10 Primary

  Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces · CPC title