Portable blower/vacuum having air inlet cover attachable to blower tube

• US 6,442,790 B1
• Filed: 02/09/2001
• Issued: 09/03/2002
• Est. Priority Date: 02/09/2001
• Status: Expired due to Term

• Current Assignee: Toro Company (Toro)
• Original Assignee: Toro Company (Toro)
• Inventors: Shaffer, Chadwick A., Svoboda, Steven J.
• Primary Examiner(s): Warden, Sr., Robert J.
• Assistant Examiner(s): Snider, Theresa T.
• Application Number:
  US09/779,966
• Publication Number:
  US 20020108206A1
• Time in Patent Office: 571 Days
• Field of Search: 153/19, 153/30, 154/05, 154/12, 154/22
• US Class Current: 15/330
• CPC Class Codes: A01G 20/47 Vacuum or blower devices
• CPC Class Codes: A47L 5/14 cleaning by blowing-off, also combined with suction cleaning
• CPC Class Codes: E01H 1/0809 Loosening or dislodging by blowing combined with suction E01H1/0863; with steam E01H1/10; removing snow by blowing E01H5/106; cleaning rails by blowing E01H8/105, E01H8/125; removing fog by blowing E01H13/00; cleaning joints in road construction by blowing E01C23/0906; Drying by means of gas streams by heat only E01H1/08; combined with snow or ice melting E01H5/10, E01H5/106, E01H5/108
• CPC Class Codes: E01H 1/0836 Apparatus dislodging all of the dirt by suction liquids or semi-liquids E01H1/108; combined with loosening by blowing E01H1/0863; for cleaning rails E01H8/105, E01H8/125; removing snow by suction E01H5/106, E01H8/08; Suction nozzles independent suction nozzles in mechanical dislodging-cleaning devices E01H1/0827; suction and blowing nozzles E01H1/0863

Abstract

A blower/vacuum having an air inlet cover and a blower tube, both of which attach to a blower housing for operation in a blower mode. The air inlet cover is preferably able to removably attach to the blower housing and the blower tube. Blower/vacuums of the present invention may generally prohibit operation unless both the blower tube and the air inlet cover are first installed. The blower/vacuum is further adapted to operate in a vacuum mode by removing the air inlet cover and blower tube and replacing the same with a vacuum tube assembly and a vacuum collection container, respectively.

Claims

1. A portable blower/vacuum comprising:

a housing having an air inlet opening and a housing outlet;

a blower tube operable to removably couple to the housing outlet; and

an air inlet cover operable to removably cover the air inlet opening, wherein the air inlet cover is securable relative to the air inlet opening by engaging at least a portion of the housing and a portion of the blower tube.

2. The blower/vacuum of claim 1, wherein the air inlet cover further comprises a first attachment member and a second attachment member, the first attachment member adapted to engage a first attachment receiver located on the blower tube and the second attachment member adapted to engage a second attachment receiver located on the housing.

3. The blower/vacuum of claim 2, wherein the engagement of the first attachment member with the first attachment receiver and the engagement of the second attachment member with the second attachment receiver securely engages both the blower tube and the air inlet cover to the housing.

4. The blower/vacuum of claim 2, further comprising an interlock sensor operable to detect latching engagement of the second attachment member with the second attachment receiver.

5. The blower/vacuum of claim 2, wherein the first attachment member comprises a pin and the first attachment receiver comprises a hook.

6. The blower/vacuum of claim 5, wherein engagement of the pin with the hook permits the air inlet cover to pivot between a first unlatched position and a second latched position, the second latched position corresponding to secure engagement of the air inlet cover to the housing.

7. A method for assembling a portable blower/vacuum, comprising:

providing a blower housing, the housing having an air inlet opening and a housing outlet;

coupling a blower tube to the housing outlet of the blower housing; and

attaching an air inlet cover over the air inlet opening, the air inlet cover releasably engaged with both the blower tube and the blower housing.

8. The method of claim 7, wherein coupling the blower tube comprises sliding a female portion of the blower tube over a male portion of the housing outlet.

9. The method of claim 7, wherein attaching the air inlet cover comprises engaging a first attachment member on the air inlet cover with a first attachment receiver on the blower tube and engaging a second attachment member on the air inlet cover with a second attachment receiver on the blower housing.

10. The method of claim 9, further comprising:

disengaging the second attachment member from the second attachment receiver;

disengaging the first attachment member from the first attachment receiver;

removing the air inlet cover from the blower housing; and

removing the blower tube from the blower housing.

11. The method of claim 7, further comprising:

providing an interlock engagement member on the air inlet cover; and

engaging, with the interlock engagement member, an interlock sensor associated with the blower housing.

12. A method for assembling and using a portable blower/vacuum, comprising:

providing a blower housing, the housing having an air inlet opening and a housing outlet;

coupling a blower tube to the housing outlet of the blower housing;

providing an air inlet cover;

engaging a first attachment member of the air inlet cover with a first attachment receiver on the blower tube; and

engaging a second attachment member of the air inlet cover with a second attachment receiver on the blower housing.

13. The method of claim 12, further comprising engaging, with the air inlet cover, an interlock sensor coupled to the blower housing.

14. The method of claim 12, further comprising operating the blower/vacuum after engagement of the second attachment member with the second attachment receiver.

15. A portable blower/vacuum comprising:

a blower housing, the housing having;

a housing outlet;

an air inlet opening in fluid communication with the housing outlet; and

a rotatable impeller coupled to a motor, the impeller operable to draw air into the housing through the air inlet opening and expel the air through the housing outlet;

a blower tube attachable to the housing outlet;

air inlet cover adapted to removably cover the air inlet opening, the air inlet cover securable by engaging both a portion of the blower tube and a portion of the blower housing.

16. The blower/vacuum of claim 15, wherein the blower housing further comprises an interlock sensor engageable by an interlock engagement member on the air inlet cover.

17. The blower/vacuum of claim 15, further comprising:

a first attachment receiver located on the blower tube;

a first attachment member and a second attachment member located on the air inlet cover; and

a second attachment receiver located on the housing, wherein the first attachment member is adapted to engage the first attachment receiver and the second attachment member is adapted to engage the second attachment receiver.

18. The blower/vacuum of claim 17, wherein the engagement of the first attachment member and the first attachment receiver permits the air inlet cover to pivot between a first unlatched position and a second latched position.

19. The blower/vacuum of claim 18, wherein, in the second latched position, the air inlet cover and the blower tube are securely engaged to the blower housing.

20. A portable blower/vacuum system comprising:

a housing having an air inlet opening and a housing outlet;

a blower tube operable to removably couple to the housing outlet; and

an air inlet cover operable to removably cover the air inlet opening, the air inlet cover having a first attachment member operable to engage a first attachment receiver on the blower tube and a second attachment member operable to engage a second attachment receiver on the housing.

21. The blower/vacuum system of claim 20, further comprising:

a vacuum collection container operable to removably couple to the housing outlet; and

a vacuum tube assembly operable to removably cover the air inlet opening, the vacuum tube assembly having a first vacuum attachment member operable to engage a first vacuum attachment receiver on the housing and a second vacuum attachment member operable to engage the second attachment receiver on the housing.

22. The blower/vacuum system of claim 21, wherein the housing further comprises an interlock sensor engageable by an interlock engagement member on the vacuum tube assembly.

23. The blower/vacuum system of claim 21, wherein the engagement of the first vacuum attachment member with the first vacuum attachment receiver permits the vacuum tube assembly to pivot between a first unlatched position and a second latch position.