US20110036340A1 - High efficiency range hood - Google Patents

High efficiency range hood Download PDF

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Publication number
US20110036340A1
US20110036340A1 US12/461,568 US46156809A US2011036340A1 US 20110036340 A1 US20110036340 A1 US 20110036340A1 US 46156809 A US46156809 A US 46156809A US 2011036340 A1 US2011036340 A1 US 2011036340A1
Authority
US
United States
Prior art keywords
air
housing
range hood
communicates
high efficiency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/461,568
Inventor
Ming-Hung Chu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sakura Shunde Co Ltd
Original Assignee
SAKURA BATH & KITCHEN PRODUCTS (HUANAN) Co Ltd
Sakura Shunde Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAKURA BATH & KITCHEN PRODUCTS (HUANAN) Co Ltd, Sakura Shunde Co Ltd filed Critical SAKURA BATH & KITCHEN PRODUCTS (HUANAN) Co Ltd
Priority to US12/461,568 priority Critical patent/US20110036340A1/en
Assigned to SAKURA BATH & KITCHEN PRODUCTS (HUANAN), CO., LTD. reassignment SAKURA BATH & KITCHEN PRODUCTS (HUANAN), CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHU, MING-HUNG
Assigned to SAKURA SHUNDE CO., LTD. reassignment SAKURA SHUNDE CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAKURA BATH & KITCHEN PRODUCTS (HUANAN) CO., LTD.
Publication of US20110036340A1 publication Critical patent/US20110036340A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Definitions

  • the present invention relates to a range hood.
  • the present invention relates to a high efficiency range hood.
  • Range hoods in the markets that include a housing and a smoke exhausting device installed in the housing doest not meet the specifications of the US energy star, including the efficiency rate (airflow at low speed/low speed power) >2.8 (cubic feet/min/power), the noise at low speed ⁇ 2.0 Sone, and the airflow at low speed ⁇ 100(cubic feet/min/power).
  • One particular aspect of the present invention is to provide a high efficiency range hood that meets the specifications of the US energy star, including the efficiency rate (airflow at low speed/low speed power) >2.8 (cubic feet/min/power), the noise at low speed ⁇ 2.0 Sone, and the airflow at low speed ⁇ 100 (cubic feet/min/power), and its structure is simple.
  • Another particular aspect of the present invention is to provide a high efficiency range hood.
  • the installation is simple.
  • the high efficiency range hood includes a housing and a smoke exhausting device.
  • the smoke exhausting device includes a snail-shaped air chamber, an air turbine installed in the air chamber, and an electric motor installed in the air chamber for rotating the air turbine.
  • the air chamber has an air inlet and at least one air outlet.
  • the housing has at least one knockout portion that communicates with the air outlet. The knockout portions links with the external air outlet pipe.
  • the air turbine includes an installation bottom board, a curved fan blade fastened on the installation bottom board, and a fastening frame connected with the curved fan blade.
  • the air outlet on the air chamber includes two side air outlets and a bottom air outlet.
  • the knockout portions on the housing includes a first knockout portion installed on the back surface of the housing and two top knockout portions located on the top of the housing.
  • the front surface of the housing has a vent.
  • the first knockout portion located on the back surface of the housing communicates with the side air outlet.
  • the two top knockout portions located on the top of the housing communicates with the bottom air outlet.
  • a recirculation venting cover is also included that is fastened with the air chamber and links with a front air outlet.
  • the outlet of the recirculation venting cover communicates with the vent on the front surface of the housing and links with the vent.
  • the housing further is installed with a filter.
  • FIG. 1 is an exploded perspective view of the range hood of the present invention
  • FIG. 2 is a perspective view of the range hood of the present invention without filter
  • FIG. 3 is an exploded perspective view of FIG. 2 ;
  • FIG. 4 is another exploded perspective view of FIG. 2 .
  • the high efficiency range hood includes a housing 6 and a smoke exhausting device installed in the housing 6 .
  • the smoke exhausting device includes a snail-shaped air chamber 5 , an air turbine 3 installed in the air chamber 5 , and an electric motor 4 installed in the air chamber 5 for rotating the air turbine 3 .
  • the air chamber 5 has an air inlet 52 and at least one air outlet.
  • the housing 6 has at least one knockout portion that communicates with the air outlet. The knockout portion communicates with the external air outlet pipe.
  • the housing 6 also is installed with a filter 1 .
  • the filter 1 is installed on the housing 6 and can be disassembled for easy clean and replace.
  • the air inlet 52 is round-shaped or has other shape.
  • the air turbine 3 includes an installation bottom board 32 , a curved fan blade 33 fastened on the installation bottom board 32 , and a fixed frame 31 connected with the curved fan blade 33 .
  • the air turbine 3 is installed with the electric motor 4 via the installation bottom board 32 so that the electric motor 4 rotates the air turbine 3 to exhaust the air with oil.
  • the air outlet on the air chamber 5 includes two side air outlets 51 , 53 and a bottom air outlet 54 .
  • the two side air outlets 51 , 53 are located at two sides of the air chamber 5 .
  • the bottom air outlet 54 is located on one surface of the air chamber 5 that is opposite to a surface with the air inlet 52 .
  • the knockout portion on the housing 6 includes a first knockout 61 located on a back surface of the housing 6 and two top knockout portions 63 , 64 located on the top of the housing 6 .
  • the first knockout portion 61 and the top knockout portions 64 are rectangular.
  • the top knockout portion 63 is round-shaped.
  • a front surface of the housing 6 has a vent 62 .
  • the vent 62 is composed of a plurality of holes that are disposed at intervals.
  • the first knockout portion 61 located on the back surface of the housing 6 communicates with the side air outlet 51 .
  • the two top knockout portions 63 , 64 located on the top of the housing 6 communicates with the bottom air outlet 54 .
  • a recirculation venting cover 7 is also included.
  • the two sides of the recirculation venting cover 7 respectively form an inlet 71 and an outlet 72 .
  • the inlet 71 of the recirculation venting cover 7 is fastened with the air chamber 5 and communicates with a side air outlet 53 .
  • the outlet 72 of the recirculation venting cover 7 communicates with the vent 62 located on the front surface of the housing 6 .
  • the air exhausting device has a snail-shaped air chamber 5 and an air turbine 3 .
  • the air chamber 5 has an air inlet 52 and air outlet.
  • the housing 6 has knockout portion and the knockout portion is linked with the external air outlet pipe.
  • the efficiency of the air exhaust is high and meets the specifications of the US energy star, including the efficiency rate (airflow at low speed/low speed power) >2.8 (cubic feet/min/power), the noise at low speed ⁇ 2.0 Sone, and the airflow at low speed ⁇ 100 (cubic feet/min/power), and its structure is simple.
  • the back surface of the housing 6 has a first knockout portion 61 and the top of the housing 6 has top knockout portions 63 , 64 that can be easily connected with the external air outlet pipe. The installation process is easy.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

A high efficiency range hood includes a housing and a smoke exhausting device. The smoke exhausting device includes a snail-shaped air chamber, an air turbine installed in the air chamber, and an electric motor installed in the air chamber for rotating the air turbine. The air chamber has an air inlet and at least one air outlet. The housing has at least one knockout portion that communicates with the air outlet. The knockout portion communicates with the external air outlet pipe.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a range hood. In particular, the present invention relates to a high efficiency range hood.
  • 2. Description of Related Art
  • Range hoods in the markets that include a housing and a smoke exhausting device installed in the housing doest not meet the specifications of the US energy star, including the efficiency rate (airflow at low speed/low speed power) >2.8 (cubic feet/min/power), the noise at low speed <2.0 Sone, and the airflow at low speed ≧100(cubic feet/min/power).
    • SUMMARY OF THE INVENTION
  • One particular aspect of the present invention is to provide a high efficiency range hood that meets the specifications of the US energy star, including the efficiency rate (airflow at low speed/low speed power) >2.8 (cubic feet/min/power), the noise at low speed <2.0 Sone, and the airflow at low speed ≧100 (cubic feet/min/power), and its structure is simple.
  • Another particular aspect of the present invention is to provide a high efficiency range hood. There are knockout portions at the back surface and top of the housing and can be easily linked with the air outlet pipe. The installation is simple.
  • The high efficiency range hood includes a housing and a smoke exhausting device. The smoke exhausting device includes a snail-shaped air chamber, an air turbine installed in the air chamber, and an electric motor installed in the air chamber for rotating the air turbine. The air chamber has an air inlet and at least one air outlet. The housing has at least one knockout portion that communicates with the air outlet. The knockout portions links with the external air outlet pipe.
  • There is a fan guard around the air inlet of the air chamber.
  • The air turbine includes an installation bottom board, a curved fan blade fastened on the installation bottom board, and a fastening frame connected with the curved fan blade.
  • The air outlet on the air chamber includes two side air outlets and a bottom air outlet. The knockout portions on the housing includes a first knockout portion installed on the back surface of the housing and two top knockout portions located on the top of the housing. The front surface of the housing has a vent. The first knockout portion located on the back surface of the housing communicates with the side air outlet. The two top knockout portions located on the top of the housing communicates with the bottom air outlet.
  • A recirculation venting cover is also included that is fastened with the air chamber and links with a front air outlet. The outlet of the recirculation venting cover communicates with the vent on the front surface of the housing and links with the vent.
  • The housing further is installed with a filter.
  • For further understanding of the present invention, refer to the following detailed description illustrating the embodiments and examples of the present invention. The description is for illustrative purpose only and is not intended to limit the scope of the claim.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded perspective view of the range hood of the present invention;
  • FIG. 2 is a perspective view of the range hood of the present invention without filter;
  • FIG. 3 is an exploded perspective view of FIG. 2; and
  • FIG. 4 is another exploded perspective view of FIG. 2.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Reference is made to FIGS. 1-4. The high efficiency range hood includes a housing 6 and a smoke exhausting device installed in the housing 6. The smoke exhausting device includes a snail-shaped air chamber 5, an air turbine 3 installed in the air chamber 5, and an electric motor 4 installed in the air chamber 5 for rotating the air turbine 3. The air chamber 5 has an air inlet 52 and at least one air outlet. The housing 6 has at least one knockout portion that communicates with the air outlet. The knockout portion communicates with the external air outlet pipe.
  • In this embodiment, the housing 6 also is installed with a filter 1. The filter 1 is installed on the housing 6 and can be disassembled for easy clean and replace. The air inlet 52 is round-shaped or has other shape. There is a fan guard 2 around the air inlet 52 of the air chamber 5. The air turbine 3 includes an installation bottom board 32, a curved fan blade 33 fastened on the installation bottom board 32, and a fixed frame 31 connected with the curved fan blade 33. The air turbine 3 is installed with the electric motor 4 via the installation bottom board 32 so that the electric motor 4 rotates the air turbine 3 to exhaust the air with oil.
  • The air outlet on the air chamber 5 includes two side air outlets 51, 53 and a bottom air outlet 54. The two side air outlets 51, 53 are located at two sides of the air chamber 5. The bottom air outlet 54 is located on one surface of the air chamber 5 that is opposite to a surface with the air inlet 52. The knockout portion on the housing 6 includes a first knockout 61 located on a back surface of the housing 6 and two top knockout portions 63, 64 located on the top of the housing 6. The first knockout portion 61 and the top knockout portions 64 are rectangular. The top knockout portion 63 is round-shaped. When the first knockout portion 61 and the top knockouts 63, 64 are not used, the first knockout portion 61 and the top knockout portions 63, 64 are sealed with board with corresponding shape. When the first knockout portion 61 and the top knockout portions 63, 64 are used, the boards are removed. A front surface of the housing 6 has a vent 62. The vent 62 is composed of a plurality of holes that are disposed at intervals. The first knockout portion 61 located on the back surface of the housing 6 communicates with the side air outlet 51. The two top knockout portions 63, 64 located on the top of the housing 6 communicates with the bottom air outlet 54.
  • A recirculation venting cover 7 is also included. The two sides of the recirculation venting cover 7 respectively form an inlet 71 and an outlet 72. The inlet 71 of the recirculation venting cover 7 is fastened with the air chamber 5 and communicates with a side air outlet 53. The outlet 72 of the recirculation venting cover 7 communicates with the vent 62 located on the front surface of the housing 6.
  • When the external air outlet pipe needs to be linked with the top of the housing 6, one of the top knockout portions 63, or 64 is opened. When the external air outlet pipe needs to be linked with the back surface of the housing 6, the back knockout portion 61 or the vent 62 is opened. The installation process is simple.
  • The air exhausting device has a snail-shaped air chamber 5 and an air turbine 3. The air chamber 5 has an air inlet 52 and air outlet. The housing 6 has knockout portion and the knockout portion is linked with the external air outlet pipe. Thereby, the efficiency of the air exhaust is high and meets the specifications of the US energy star, including the efficiency rate (airflow at low speed/low speed power) >2.8 (cubic feet/min/power), the noise at low speed <2.0 Sone, and the airflow at low speed ≧100 (cubic feet/min/power), and its structure is simple. Furthermore, the back surface of the housing 6 has a first knockout portion 61 and the top of the housing 6 has top knockout portions 63, 64 that can be easily connected with the external air outlet pipe. The installation process is easy.
  • The description above only illustrates specific embodiments and examples of the present invention. The present invention should therefore cover various modifications and variations made to the herein-described structure and operations of the present invention, provided they fall within the scope of the present invention as defined in the following appended claims.

Claims (6)

1. A high efficiency range hood, comprising:
a housing; and
a smoke exhausting device disposed in the housing, wherein the smoke exhausting device includes a snail-shaped air chamber, an air turbine installed in the air chamber, and an electric motor installed in the air chamber for rotating the air turbine, the air chamber has an air inlet and at least one air outlet, the housing has at least one knockout portion that communicates with the air outlet, and the knockout portion communicates with an external air outlet pipe.
2. The high efficiency range hood as claimed in claim 1, wherein the air chamber has a fan guard around the air inlet thereof.
3. The high efficiency range hood as claimed in claim 1, wherein the air turbine includes an installation bottom board, a curved fan blade fastened on the installation bottom board, and a fastening frame connected with the curved fan blade.
4. The high efficiency range hood as claimed in claim 1, wherein the air outlet on the air chamber include two side air outlets and a bottom air outlet, the knockout portion on the housing includes a first knockout portion installed on the back surface of the housing and two top knockout portions located on the top of the housing, the front surface of the housing has a vent, the knockout portions located on the back surface of the housing communicates with one of the side air outlets, and the two top knockout portions located on the top of the housing communicates with the bottom air outlet
5. The high efficiency range hood as claimed in claim 4, further comprising a recirculation venting cover that is fastened with the air chamber and communicates with one of the side air outlets, wherein the outlet of the recirculation venting cover communicates with the vent on the side surface of the housing.
6. The high efficiency range hood as claimed in claim 1, wherein the housing further has a filter.
US12/461,568 2009-08-17 2009-08-17 High efficiency range hood Abandoned US20110036340A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/461,568 US20110036340A1 (en) 2009-08-17 2009-08-17 High efficiency range hood

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Application Number Priority Date Filing Date Title
US12/461,568 US20110036340A1 (en) 2009-08-17 2009-08-17 High efficiency range hood

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US20110036340A1 true US20110036340A1 (en) 2011-02-17

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103383117A (en) * 2013-07-31 2013-11-06 谈启明 Linkage type dual kitchen ventilator
CN103512069A (en) * 2013-09-30 2014-01-15 谈启明 Linked starting and stopping type dual smoke exhaust ventilator
JP2014524007A (en) * 2011-09-09 2014-09-18 寧波舜韵電子有限公司 Thin range hood with external discharge and internal circulation
US20150241070A1 (en) * 2014-02-26 2015-08-27 Mei-Yi Lin Range Hood
USD743520S1 (en) 2013-06-20 2015-11-17 Broan-Nutone Llc Range hood
USD745131S1 (en) 2013-06-20 2015-12-08 Broan-Nutone Llc Range hood
US20170016629A1 (en) * 2014-09-12 2017-01-19 Wuhu Midea Kitchen Appliances Manufacturing Co., Ltd. Range hood and volute casing thereof
CN107101236A (en) * 2017-05-27 2017-08-29 徐晓倩 A kind of oil smoke whiz device for air outlet for kitchen ventilator
CN107166457A (en) * 2016-04-28 2017-09-15 九阳股份有限公司 A kind of lampblack absorber
USD804627S1 (en) * 2015-05-19 2017-12-05 Broan-Nutone Llc Vent hood
USD814009S1 (en) * 2015-05-19 2018-03-27 Broan-Nutone, Llc Vent hood
CN108087332A (en) * 2018-01-22 2018-05-29 杭州老板电器股份有限公司 Draught fan impeller assembly and range hood
USD834695S1 (en) * 2015-05-19 2018-11-27 Broan-Nutone Llc Vent hood
USD838829S1 (en) * 2015-05-19 2019-01-22 Broan-Nutone, Llc Vent hood
EP3247952B1 (en) 2015-01-22 2019-03-20 Elica S.p.A. Suction grid for an air guide of a domestic hood, air guide having such grid and domestic hood having such air guide
USD858734S1 (en) * 2015-05-19 2019-09-03 Broan-Nutone Llc Vent hood
USD897521S1 (en) * 2016-10-14 2020-09-29 Broan-Nutone Llc Vent hood
EP4180725A1 (en) * 2021-11-10 2023-05-17 Berbel Ablufttechnik GmbH Extractor hood
EP4180726A1 (en) * 2021-11-10 2023-05-17 Berbel Ablufttechnik GmbH Extractor hood

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431903A (en) * 1967-09-14 1969-03-11 Gen Electric Furnace humidifier mounting means
US3859901A (en) * 1974-02-25 1975-01-14 Gen Electric Recirculating ventilating hood
US4089328A (en) * 1976-11-02 1978-05-16 Futurumverken Ab Kitchen ventilator
US20030188733A1 (en) * 2002-04-03 2003-10-09 Woodall William Miles Low-profile ventilation hood
US20040194778A1 (en) * 2003-04-03 2004-10-07 Peter Yeung Kitchen range hood motor housing and fan
US20050051159A1 (en) * 2002-07-26 2005-03-10 Yamazen Co., Ltd. Range hood
US20060070617A1 (en) * 2003-06-30 2006-04-06 Yamazen Co., Ltd. Range hood fan having filter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431903A (en) * 1967-09-14 1969-03-11 Gen Electric Furnace humidifier mounting means
US3859901A (en) * 1974-02-25 1975-01-14 Gen Electric Recirculating ventilating hood
US4089328A (en) * 1976-11-02 1978-05-16 Futurumverken Ab Kitchen ventilator
US20030188733A1 (en) * 2002-04-03 2003-10-09 Woodall William Miles Low-profile ventilation hood
US20050051159A1 (en) * 2002-07-26 2005-03-10 Yamazen Co., Ltd. Range hood
US20040194778A1 (en) * 2003-04-03 2004-10-07 Peter Yeung Kitchen range hood motor housing and fan
US20060070617A1 (en) * 2003-06-30 2006-04-06 Yamazen Co., Ltd. Range hood fan having filter

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014524007A (en) * 2011-09-09 2014-09-18 寧波舜韵電子有限公司 Thin range hood with external discharge and internal circulation
KR101560951B1 (en) * 2011-09-09 2015-10-15 션윤 엘릭트론 코., 엘티디 Thin-type outside-expelling-and-inside-circulating-style smoke exhaust ventilator
USD743520S1 (en) 2013-06-20 2015-11-17 Broan-Nutone Llc Range hood
USD745131S1 (en) 2013-06-20 2015-12-08 Broan-Nutone Llc Range hood
USD758559S1 (en) 2013-06-20 2016-06-07 Broan-Nutone Llc Range hood
USD820428S1 (en) 2013-06-20 2018-06-12 Broan-Nutone Llc Range hood
CN103383117A (en) * 2013-07-31 2013-11-06 谈启明 Linkage type dual kitchen ventilator
CN103512069A (en) * 2013-09-30 2014-01-15 谈启明 Linked starting and stopping type dual smoke exhaust ventilator
US20150241070A1 (en) * 2014-02-26 2015-08-27 Mei-Yi Lin Range Hood
US20170016629A1 (en) * 2014-09-12 2017-01-19 Wuhu Midea Kitchen Appliances Manufacturing Co., Ltd. Range hood and volute casing thereof
US10060634B2 (en) * 2014-09-12 2018-08-28 Wuhu Midea Kitchen Appliances Manufacturing Co., Ltd. Range hood and volute casing thereof
EP3247952B1 (en) 2015-01-22 2019-03-20 Elica S.p.A. Suction grid for an air guide of a domestic hood, air guide having such grid and domestic hood having such air guide
USD814009S1 (en) * 2015-05-19 2018-03-27 Broan-Nutone, Llc Vent hood
USD804627S1 (en) * 2015-05-19 2017-12-05 Broan-Nutone Llc Vent hood
USD834695S1 (en) * 2015-05-19 2018-11-27 Broan-Nutone Llc Vent hood
USD838830S1 (en) * 2015-05-19 2019-01-22 Broan-Nutone Llc Vent hood
USD838829S1 (en) * 2015-05-19 2019-01-22 Broan-Nutone, Llc Vent hood
USD858734S1 (en) * 2015-05-19 2019-09-03 Broan-Nutone Llc Vent hood
CN107166457A (en) * 2016-04-28 2017-09-15 九阳股份有限公司 A kind of lampblack absorber
USD897521S1 (en) * 2016-10-14 2020-09-29 Broan-Nutone Llc Vent hood
CN107101236A (en) * 2017-05-27 2017-08-29 徐晓倩 A kind of oil smoke whiz device for air outlet for kitchen ventilator
CN108087332A (en) * 2018-01-22 2018-05-29 杭州老板电器股份有限公司 Draught fan impeller assembly and range hood
EP4180725A1 (en) * 2021-11-10 2023-05-17 Berbel Ablufttechnik GmbH Extractor hood
EP4180726A1 (en) * 2021-11-10 2023-05-17 Berbel Ablufttechnik GmbH Extractor hood

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Date Code Title Description
AS Assignment

Owner name: SAKURA BATH & KITCHEN PRODUCTS (HUANAN), CO., LTD.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHU, MING-HUNG;REEL/FRAME:023152/0679

Effective date: 20090814

AS Assignment

Owner name: SAKURA SHUNDE CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAKURA BATH & KITCHEN PRODUCTS (HUANAN) CO., LTD.;REEL/FRAME:023329/0115

Effective date: 20090918

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION