USRE39570E1 - Fan grill construction - Google Patents
Fan grill construction Download PDFInfo
- Publication number
- USRE39570E1 USRE39570E1 US10/888,969 US88896904A USRE39570E US RE39570 E1 USRE39570 E1 US RE39570E1 US 88896904 A US88896904 A US 88896904A US RE39570 E USRE39570 E US RE39570E
- Authority
- US
- United States
- Prior art keywords
- grill
- fan
- circumferential ring
- dimension
- inches
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Definitions
- This invention relates to an improved fan grill guard construction of the type where the grill has an outer ring, which is dimensionally structured to provide greater airflow and diffusion.
- the typical grill used on the front of oscillating, pedestal or wall mount fans is of round wire, with some fans such as shown in U.S. Pat. No. 6,071,079 having a front grill of molded plastic.
- plastic does not rust, is inexpensive to mold and does not require welding or painting.
- plastic permits easy design variation to achieve a look that is less restrictive in the center, and allows the customer to see the blades.
- Plastic grills can also be constructed so they do not require additional parts such as rings or clips for assembly.
- the principal object of the invention is to provide front grill construction for a fan that is dimensionally structured to provide increased air volume over a large area.
- a further object of the invention is to provide fan grill construction that allows tighter spacing to the fan blade periphery to provide a more efficient package with improved safety.
- a further object of the invention is to provide fan grill construction which adds mass to the outside of the grill to dampen vibration.
- a further object of the invention is to provide a front grill which is constructed for molded plastic.
- a further object of the invention is to provide a fan grill construction that can be adapted to a variety of types and sizes of fans.
- a further object of the invention is to provide fan grill construction where the grill is not part of the support for the motor/blade assembly.
- FIG. 1 is an exploded perspective view of a prior art fan
- FIG. 2 is an exploded perspective view of a fan with the new front grill construction of the invention
- FIG. 3 is a horizontal sectional view of the assembled prior art fan of FIG. 1 ;
- FIG. 4 is a view similar to FIG. 3 but showing the improved fan grill construction of the invention.
- FIG. 5 is a graph comparing the performances of the prior art fan grill construction to the improved fan grill construction of the invention.
- dimension C is the width of ring 70 .
- dimension D is the diameter of the blade assembly 54 .
- the fan 10 includes an electric motor housing 11 , which contains an electric motor (not shown) of well known type, which may be connected to a source of electrical power (not shown).
- the fan motor has an output shaft 12 with a hub 14 of blade assembly 15 attached thereto, with three blades 16 being shown.
- the fan motor housing 11 may be mounted to a yoke (not shown) which may be mounted to a pedestal (not shown) or other well known support structure, which can rest on the floor, on a table or otherwhere as desired.
- the housing 11 has a rear grill 17 mounted thereto, which is of circular configuration, with a plurality of spaced radial ribs 18 , connected to a plurality of concentric rings 19 , with the radial ribs 18 extending out to a circumferential rim 20 and inwardly to a center ring 21 .
- a front grill 25 is provided, which has a plurality of spaced radial ribs 26 , which are connected to a plurality of concentric rings 27 .
- the ribs 26 extend out to an outer rim 28 , which mates with rim 20 of rear grill 17 .
- the radial ribs 26 also extend inwardly and are connected to a center plate 29 .
- Both the front and rear grills 25 and 17 are preferably formed of molded plastic.
- the arrows 30 illustrate the airflow through the rear grill 17 , and out the front grill 25 in a focused pattern, which upon oscillation provides the on-off airflow that is not desirable.
- FIGS. 2 and 4 the improved front grill construction is therein illustrated and as part of a fan 50 .
- the fan 50 includes an electric motor housing 51 , which contains an electric motor (not shown) of well known type which may be connected to a source of electrical energy (not shown).
- the fan motor has an output shaft 52 , to which a hub 53 of a blade assembly 54 is attached, with the blade assembly having three blades 55 .
- the fan motor housing 51 may be mounted to a pedestal (not shown) or other structure as described for fan 10 .
- the motor housing 51 has a rear grill 57 mounted thereto in conventional manner such as by bolts (not shown).
- the rear grill 57 has a plurality of concentric rings 58 to which spaced interrupted radial ribs 59 and 60 are connected.
- the ribs 59 are shorter than ribs 60 and extend out to a rim 62 of grill 57 .
- the ribs 60 extend out to rim 62 and inwardly to a center ring 63 which is attached to motor housing 51 .
- a front grill 65 is provided, of circular configuration, with a plurality of concentric rings 66 , which have a plurality of spaced radial ribs 67 and 68 connected thereto, with ribs 67 extending inwardly to a center plate 69 , and outwardly to a ring 70 to be described.
- the ribs 68 extend outwardly to ring 70 , and inwardly short of plate 69 .
- the ring 70 includes a curved panel 71 , which extends inwardly to an inclined panel 72 , and outwardly to a rim 73 .
- the rim 73 mates with rim 62 of grill 57 with spaced tabs 62 A therearound, which are engaged with slots 74 in rim 73 to retain the grills 57 and 65 together.
- the ring dimensions are indicated by the letters A, B, C and D.
- the dimension A is the distance from the tip 75 of a blade 55 to the inside diameter of the ring 70 .
- the dimension B is the depth of ring 70 , or the distance from the rear most portion of rim 73 to the front end of panel 71 .
- the fan 50 on high speed at 9 feet from the fan provided an air velocity (NEMA CFM) of 5710.00, whereas fan 10 provided an air velocity (NEMA CFM) of 4737. 10.
Abstract
Description
Claims (82)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/888,969 USRE39570E1 (en) | 2001-04-09 | 2004-07-09 | Fan grill construction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/828,673 US6454537B1 (en) | 2001-04-09 | 2001-04-09 | Fan grill construction |
US10/888,969 USRE39570E1 (en) | 2001-04-09 | 2004-07-09 | Fan grill construction |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/828,673 Reissue US6454537B1 (en) | 2001-04-09 | 2001-04-09 | Fan grill construction |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE39570E1 true USRE39570E1 (en) | 2007-04-17 |
Family
ID=25252434
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/828,673 Ceased US6454537B1 (en) | 2001-04-09 | 2001-04-09 | Fan grill construction |
US10/888,969 Expired - Lifetime USRE39570E1 (en) | 2001-04-09 | 2004-07-09 | Fan grill construction |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/828,673 Ceased US6454537B1 (en) | 2001-04-09 | 2001-04-09 | Fan grill construction |
Country Status (4)
Country | Link |
---|---|
US (2) | US6454537B1 (en) |
AU (1) | AU2002250541A1 (en) |
MX (1) | MXPA02012097A (en) |
WO (1) | WO2002081925A2 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6585489B2 (en) * | 2001-04-09 | 2003-07-01 | Lasko Holdings Inc. | Fan grill construction |
JP2004156884A (en) * | 2002-11-08 | 2004-06-03 | Daikin Ind Ltd | Fan guard for blower unit |
US6790009B1 (en) | 2003-06-09 | 2004-09-14 | Hunter Fan Company | Fan grill assembly |
DE102011121025A1 (en) * | 2011-08-18 | 2013-02-21 | Ziehl-Abegg Ag | Motor suspension for fans, preferably axial fans, and method for producing a ventilation grille of such engine mount |
US10001127B2 (en) | 2013-05-23 | 2018-06-19 | Bonham Gary Todd | Portable DC cooling fan with simulated oscillation |
CN203702629U (en) * | 2014-01-20 | 2014-07-09 | 浙江久友电器科技有限公司 | Fan guard with covering rings |
USD737420S1 (en) * | 2014-09-05 | 2015-08-25 | Homely Manufacturing Limited | Desk fan |
USD762837S1 (en) * | 2015-01-13 | 2016-08-02 | Homely Manufacturing Limited | Stand fan |
DE102015115308A1 (en) * | 2015-09-10 | 2017-03-16 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Flow guide for arrangement on a fan |
CN108194394A (en) * | 2018-02-07 | 2018-06-22 | 广东美的环境电器制造有限公司 | The front mesh enclosure of fan and with its fan |
US11397013B2 (en) * | 2018-05-22 | 2022-07-26 | Mitsubishi Electric Corporation | Air-sending device and air-conditioning apparatus |
US20210364175A1 (en) * | 2020-05-22 | 2021-11-25 | Kohl Naehu | Solar Fan Device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2554602A (en) * | 1949-10-10 | 1951-05-29 | O A Sutton Corp Inc | Cowl for fans |
US6015262A (en) * | 1997-10-21 | 2000-01-18 | Huang; Kuo-Cheng | Electric fan apparatus capable of blowing air in a desired orientation |
US6015265A (en) * | 1998-08-31 | 2000-01-18 | Lasko Holdings, Inc. | Box fan with air divider ring |
US6071079A (en) * | 1998-03-27 | 2000-06-06 | Lasko Holdings, Inc. Usa | High velocity fan |
USD427674S (en) * | 1999-08-05 | 2000-07-04 | Lakewood Engineering And Manufacturing Co. | Front face of a grill for an electric fan |
US6213718B1 (en) * | 1998-04-27 | 2001-04-10 | Emerson Electric Co. | Air circulation fan with removable shroud |
US6309192B1 (en) * | 1999-03-26 | 2001-10-30 | Lasko Holdings, Inc. | Insulated box fan |
US6364618B1 (en) * | 2000-02-03 | 2002-04-02 | Lakewood Engineering & Mfg. Co. | Fan body assembly |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2950859A (en) * | 1956-12-03 | 1960-08-30 | Meier Electric And Machine Com | Fan housing and protective grill |
US4120615A (en) * | 1977-02-04 | 1978-10-17 | Allware Agencies Limited | Box fans |
US5118252A (en) * | 1990-05-24 | 1992-06-02 | The W. B. Marvin Manufacturing Company | Intake grill for electric fan assembly |
US5348447A (en) * | 1992-12-30 | 1994-09-20 | J & D Sales | Improved fan housing with easy access |
US6196803B1 (en) * | 1999-01-22 | 2001-03-06 | Emerson Electric Co., | Air circulator fan |
-
2001
- 2001-04-09 US US09/828,673 patent/US6454537B1/en not_active Ceased
-
2002
- 2002-04-09 AU AU2002250541A patent/AU2002250541A1/en not_active Abandoned
- 2002-04-09 MX MXPA02012097A patent/MXPA02012097A/en active IP Right Grant
- 2002-04-09 WO PCT/US2002/010961 patent/WO2002081925A2/en not_active Application Discontinuation
-
2004
- 2004-07-09 US US10/888,969 patent/USRE39570E1/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2554602A (en) * | 1949-10-10 | 1951-05-29 | O A Sutton Corp Inc | Cowl for fans |
US6015262A (en) * | 1997-10-21 | 2000-01-18 | Huang; Kuo-Cheng | Electric fan apparatus capable of blowing air in a desired orientation |
US6071079A (en) * | 1998-03-27 | 2000-06-06 | Lasko Holdings, Inc. Usa | High velocity fan |
US6213718B1 (en) * | 1998-04-27 | 2001-04-10 | Emerson Electric Co. | Air circulation fan with removable shroud |
US6015265A (en) * | 1998-08-31 | 2000-01-18 | Lasko Holdings, Inc. | Box fan with air divider ring |
US6309192B1 (en) * | 1999-03-26 | 2001-10-30 | Lasko Holdings, Inc. | Insulated box fan |
USD427674S (en) * | 1999-08-05 | 2000-07-04 | Lakewood Engineering And Manufacturing Co. | Front face of a grill for an electric fan |
US6364618B1 (en) * | 2000-02-03 | 2002-04-02 | Lakewood Engineering & Mfg. Co. | Fan body assembly |
Also Published As
Publication number | Publication date |
---|---|
MXPA02012097A (en) | 2004-04-21 |
AU2002250541A1 (en) | 2002-10-21 |
WO2002081925A2 (en) | 2002-10-17 |
US6454537B1 (en) | 2002-09-24 |
WO2002081925A3 (en) | 2002-12-19 |
US20020146323A1 (en) | 2002-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LASKO HOLDINGS, INC., DELAWARE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHAPIRO, BARRY;REEL/FRAME:017530/0293 Effective date: 20060411 |
|
AS | Assignment |
Owner name: LASKO HOLDINGS, INC., DELAWARE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHAPIRO, BARRY;REEL/FRAME:017809/0342 Effective date: 20060411 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: LASKO OPERATION HOLDINGS, LLC, PENNSYLVANIA Free format text: CONVERSION;ASSIGNOR:LASKO HOLDINGS, INC.;REEL/FRAME:040634/0705 Effective date: 20161108 |
|
AS | Assignment |
Owner name: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT, Free format text: SECURITY INTEREST;ASSIGNOR:LASKO OPERATION HOLDINGS, LLC;REEL/FRAME:040659/0875 Effective date: 20161118 |
|
AS | Assignment |
Owner name: HPS INVESTMENT PARTNERS, LLC, NEW YORK Free format text: SECURITY INTEREST;ASSIGNOR:LASKO OPERATION HOLDINGS LLC;REEL/FRAME:040671/0891 Effective date: 20161118 |