Li Hsiung Liu

US Patent:

6440191, Aug 27, 2002

Filed:

Jun 14, 2000

Appl. No.:

09/594542

Inventors:

Robert C. Berfield - Jersey Shore PA
Li H. Liu - South Williamsport PA

Assignee:

Shop Vac Corporation - Williamsport PA

International Classification:

B01D 2714

US Classification:

55485, 55486, 55492, 55510, 55DIG 3, 15353

Abstract:

A vacuum cleaner has a tank and a lid for closing off the tank. A motor/impeller unit is disposed inside the tank for generating an airstream. A filter support is attached to the lid and disposed inside the tank. A foam sleeve for removing liquid from the airstream is attached to the filter support. An air filter cartridge is removably attached to the filter support outside of the foam sleeve. The foam sleeve may remain in place as the filter cartridge is attached for dry pick-up or removed for wet pick-up. In addition, a drain hole is provided in the lid for draining liquid passing through the foam sleeve.

US Patent:

6557206, May 6, 2003

Filed:

Oct 10, 2000

Appl. No.:

09/685788

Inventors:

Li H. Liu - South Williamsport PA

Assignee:

Shop Vac - Williamsport PA

International Classification:

A47L 900

US Classification:

153275, 15323, 2483167

Abstract:

A mounting assembly adapted to removably secure a vacuum cleaner to a support includes a mounting rack. The mounting rack has a surface located at its upper end that supports the vacuum cleaner in a suspended state. The mounting assembly also includes a retaining clip connected to the mounting rack. The retaining clip is movable between a first position and a second position. The retaining clip engages an outwardly extending portion of the vacuum cleaner in the first position, and disengages the outwardly extending portion in the second position.

US Patent:

D520444, May 9, 2006

Filed:

Jul 6, 2004

Appl. No.:

29/208815

Inventors:

Li H. Liu - South Williamsport PA, US

Assignee:

Shop Vac Corporation - Williamsport PA

International Classification:

1302

US Classification:

D13103

US Patent:

D521445, May 23, 2006

Filed:

Jul 6, 2004

Appl. No.:

29/208805

Inventors:

Li H. Liu - South Williamsport PA, US

Assignee:

Shop Vac Corporation - Williamsport PA

International Classification:

1302

US Classification:

D13103

US Patent:

D521446, May 23, 2006

Filed:

Jul 6, 2004

Appl. No.:

29/208806

Inventors:

Li H. Liu - South Williamsport PA, US

Assignee:

Shop Vac Corporation - Williamsport PA

International Classification:

1302

US Classification:

D13103

US Patent:

D537578, Feb 27, 2007

Filed:

Aug 25, 2005

Appl. No.:

29/237198

Inventors:

John Griffin - Phoenix AZ, US
Li H. Liu - South Williamsport PA, US

Assignee:

Shop Vac Corporation - Williamsport PA

International Classification:

1505

US Classification:

D32 18

US Patent:

RE39595, May 1, 2007

Filed:

Jul 15, 2003

Appl. No.:

10/619518

Inventors:

Li Liu - Tucson AZ, US

Assignee:

Shop Vac Corporation - Williamsport PA

International Classification:

B01D 46/02

US Classification:

55368, 55374, 55378, 55DIG 2, 55DIG 3, 15352

Abstract:

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

US Patent:

D568565, May 6, 2008

Filed:

May 11, 2007

Appl. No.:

29/279962

Inventors:

John Griffin - Phoenix AZ, US
Li Liu - South Williamsport PA, US

Assignee:

Shop-Vac Corporation - Williamsport PA

International Classification:

1505

US Classification:

D32 31