US1764788A - Fan guard - Google Patents

Fan guard Download PDF

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Publication number
US1764788A
US1764788A US413190A US41319029A US1764788A US 1764788 A US1764788 A US 1764788A US 413190 A US413190 A US 413190A US 41319029 A US41319029 A US 41319029A US 1764788 A US1764788 A US 1764788A
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United States
Prior art keywords
guard
fan guard
wires
center disk
grooves
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
Application number
US413190A
Inventor
Charles T Hatch
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.)
Union Steel Products Co
Original Assignee
Union Steel Products Co
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 Union Steel Products Co filed Critical Union Steel Products Co
Priority to US413190A priority Critical patent/US1764788A/en
Application granted granted Critical
Publication of US1764788A publication Critical patent/US1764788A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • the main objects of this invention are to provide a fan guard which is very economical in its parts, is light in weight and at the same time is strong and rigid.
  • Fig. l is a front View of my improved fan guard.
  • Fig. 2 is a front view of the center disk as formed prior to assembly with the guard Wires.
  • Fig. 3 is an enlarged fragmentary view in section on line 33 of Fig. 1.
  • Fig. 4 is an enlarged fragmentary view partially in section on line 4-4 of Fig. 1.
  • Fig. 5 is a section through the center disk on line 55 of Fig. 2.
  • my improved fan guard comprises a rim 1, a plurality of radially disposed guard wires 2 which are bent, largely for the sake of appearance, and a center disk 8 to which the inner ends of the guard wires are secured.
  • This center disk is formed as a sheet metal stamping, a plurality of radial ribs 4 being struck up therefrom providing radial grooves 5.
  • the grooves 5 are of such size as toreceive the ends of the guard wires which are welded therein, the wires prior to the welding operation contacting only with the bottoms of the grooves, thereby insuring an effective welding when the current is applied and uniform Welding of all the guard Wires as is described and claimed in myapplication for Letters Patent, Serial No. 306,263, filed September 15, 1928 of which this application is a division.
  • the center disks have notches 6 at the ends of the grooves forming segmental portions 7 between these notches, these segmental portions being turned inwardly providing supporting flanges 8 for the guard wires and also giving the appearance of weight or thickness to the center disk.
  • the guard wires are thus very efi'ectively supported and secured to the Serial No. 413,190. 7
  • a fan guard comprising a rim, radially disposed guard wires extending inwardly from said rim, and a center disk having radial ribs struck up therefrom providing radial grooves in which the inner ends of said guard wires are disposed and secured by welding, said center disk having peripheral notches at the outer ends of the grooves, the segments of the periphery between the notches being turned bet-ween and constituting supports for theguard wires.

Description

June 17, 1930. c. T. HATCH l;764,788
FAN GUARD Filed Dec. 11', 1929 INVENTOR 0/20/16 7'. HmC/Q A TTORNE Y8 Patented 'June 17, 1930 UNITED STATES PATENT. OFFICE.
CHARLES 'I. HATCH, OF ALBION, MICHIGAN, AS$IGNOR TO UNION STEEL PRODUCTS COMPANY, OF ALBION, MICHIGAN FAN GUARD Original application filed September 15, 1928, Serial-N0. 306,263. Divided and this application filed December 11, 1929.
The main objects of this invention are to provide a fan guard which is very economical in its parts, is light in weight and at the same time is strong and rigid.
Objects relating to details and economies of my invention will appear from the. description to follow. The invention is defined and pointed out in the claim.
A structure which is a preferred embodiment of my invention is illustrated in the accompanying drawing, in which:
Fig. l is a front View of my improved fan guard.
Fig. 2 is a front view of the center disk as formed prior to assembly with the guard Wires.
Fig. 3 is an enlarged fragmentary view in section on line 33 of Fig. 1.
Fig. 4: is an enlarged fragmentary view partially in section on line 4-4 of Fig. 1.
Fig. 5 is a section through the center disk on line 55 of Fig. 2. v
As illustrated in the accompanying drawing, my improved fan guard comprises a rim 1, a plurality of radially disposed guard wires 2 which are bent, largely for the sake of appearance, and a center disk 8 to which the inner ends of the guard wires are secured. This center disk is formed as a sheet metal stamping, a plurality of radial ribs 4 being struck up therefrom providing radial grooves 5. The grooves 5 are of such size as toreceive the ends of the guard wires which are welded therein, the wires prior to the welding operation contacting only with the bottoms of the grooves, thereby insuring an effective welding when the current is applied and uniform Welding of all the guard Wires as is described and claimed in myapplication for Letters Patent, Serial No. 306,263, filed September 15, 1928 of which this application is a division.
The center disks have notches 6 at the ends of the grooves forming segmental portions 7 between these notches, these segmental portions being turned inwardly providing supporting flanges 8 for the guard wires and also giving the appearance of weight or thickness to the center disk. The guard wires are thus very efi'ectively supported and secured to the Serial No. 413,190. 7
center disk and the structure is strong and rigid and at the same time attractive in appearance- Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:
A fan guard comprising a rim, radially disposed guard wires extending inwardly from said rim, and a center disk having radial ribs struck up therefrom providing radial grooves in which the inner ends of said guard wires are disposed and secured by welding, said center disk having peripheral notches at the outer ends of the grooves, the segments of the periphery between the notches being turned bet-ween and constituting supports for theguard wires.
In witnesswhereof I have hereunto set
US413190A 1928-09-15 1929-12-11 Fan guard Expired - Lifetime US1764788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US413190A US1764788A (en) 1928-09-15 1929-12-11 Fan guard

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30626328A 1928-09-15 1928-09-15
US413190A US1764788A (en) 1928-09-15 1929-12-11 Fan guard

Publications (1)

Publication Number Publication Date
US1764788A true US1764788A (en) 1930-06-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
US413190A Expired - Lifetime US1764788A (en) 1928-09-15 1929-12-11 Fan guard

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11796218B2 (en) 2017-08-18 2023-10-24 Carrier Corporation Fan housing and air conditioner device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11796218B2 (en) 2017-08-18 2023-10-24 Carrier Corporation Fan housing and air conditioner device

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