US Patent No: 6,578,391

Number of patents in Portfolio can not be more than 2000

Top loading washing machine

ALSO PUBLISHED AS: 20020014095

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A laundry washing machine has a cabinet 2 and a drum 1 suspended within the cabinet for rotation about a horizontal axis. The drum 1 includes a pair of drum ends with a pair of vanes 110, 111 extending between the drum ends 11, 12 rigidly connecting the drum ends together. The drum 1 has a substantially cylindrical perforated skin 22 having a main section 34 and a hatch section 35. The main section 34 and hatch section 35 connect along the edges to form the complete drum skin. In an opening operation the drum 1 is opened by disconnecting the edges of the main section 34 and hatch section 35 of the drum skin 22, retaining the hatch section 35 in a fixed position relative to the cabinet 2 and rotating the drum 1 such that the main section 34 of the drum skin 22 moves apart from the hatch section 35 to provide an opening into the drum. The opening is provided in conjunction with an opening into the cabinet, normally closed by a lockable lid 4. The cabinet 2 may comprise a rectangular folded up wrapper 32 together with a water collecting tray 28 fitting within the lower end 33 of the rectangular wrapper. Laundry load guiding flaps 18, 19 are disclosed which hide from view the spaces between the drum 1 and the cabinet 2 with the lid 4 open and the drum 1 in its open condition. These flaps also provide laundry guiding and scraping functions during the opening and closing operations.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FISHER & PAYKEL LIMITEDAUCKLAND106

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hunter, Gordon Sharpe Auckland, NZ 6 186
Seagar, Neville David Auckland, NZ 11 172

Cited Art Landscape

Patent Info (Count) # Cites Year
 
WHIRLPOOL CORPORATION (2)
5,398,528 Pulley system for automatic washer 7 1994
5,678,430 Tub door system for a top loading horizontal axis automatic washer 49 1996
 
STEVEN M. HOFFBERG 2004-1 GRAT (1)
2006/0200,258 Vehicular information system and method 3 2006

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
LG ELECTRONICS INC. (37)
7,533,548 Drum type washing machine 3 2003
7,607,326 Drum type washing machine and bearing housing structure thereof 14 2005
8,281,623 Top-loading drum type washing machine 0 2006
7,571,625 Drum type washing machine 5 2006
7,568,366 Drum-type washing machine and bearing housing structure thereof 5 2006
7,827,834 Bearing housing assembly of drum-type washing machine and drum-type washing machine with the same 2 2006
7,841,220 Drum-type washing machine 30 2008
8,434,334 Drum-type washing machine and bearing housing structure thereof 1 2008
7,827,833 Drum-type washing machine and bearing housing structure thereof 0 2008
8,616,027 Drum type washing machine 3 2008
8,087,267 Drum type washing machine 0 2009
8,646,292 Drum type washing machine 3 2009
8,156,770 Drum type washing machine 3 2009
7,930,910 Drum type washing machine 5 2009
8,429,938 Drum-type washing machine and bearing housing structure thereof 0 2010
8,671,718 Drum-type washing machine 0 2010
8,646,293 Drum type washing machine 3 2011
RE44795 Drum type washing machine 0 2011
RE44674 Drum type washing machine 1 2011
RE44511 Drum type washing machine 1 2011
RE44028 Drum type washing machine 1 2011
RE43625 Drum type washing machine 1 2011
8,800,326 Drum-type washing machine and bearing housing structure thereof 0 2011
8,783,072 Drum-type washing machine and bearing housing structure thereof 0 2011
8,726,702 Drum-type washing machine and bearing housing structure thereof 0 2011
8,677,787 Drum-type washing machine and bearing housing structure thereof 1 2011
8,387,421 Drum-type washing machine 4 2011
8,341,983 Drum-type washing machine 3 2011
8,336,339 Drum type washing machine 3 2011
8,336,340 Drum-type washing machine 3 2011
8,322,170 Drum-type washing machine 3 2011
8,302,434 Drum-type washing machine 3 2011
8,276,407 Drum-type washing machine 0 2011
8,234,890 Drum-type washing machine 3 2011
8,225,628 Drum-type washing machine 4 2011
8,220,294 Drum-type washing machine 0 2011
8,671,719 Drum type washing machine 0 2011
 
ELECTROLUX HOME PRODUCTS, INC. (1)
8,065,816 Dryer drum vane 3 2007
 
GENERAL ELECTRIC COMPANY (1)
7,627,960 Clothes dryer drum projections 9 2003

Maintenance Fees

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 17, 2014
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Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00