US2011791A

US2011791A - Portable ventilating fan

Info

Publication number: US2011791A
Application number: US600590A
Authority: US
Inventors: Joseph M Barrett
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-03-23
Filing date: 1932-03-23
Publication date: 1935-08-20
Anticipated expiration: 1952-08-20

Description

- Aug. 20, 1935. BARRETT 2,011,791

PORTABLE VENTILATI NG FAN Original Filed March 23, 1932 I IN VENTOR JOSEPH M. B l MET!" I 4 M A ORNE Y Patented Aug. 20, 1935 PA E orrm PORTABLE VENTILATI N G FAN Joseph M. Barrett, East Cleveland, Ohio Application March 23, 1932, Serial No. 600,590 Renewed December 24, 1934 1 Claim.

4 This invention has to do with the art of portable ventilating fans, and fans of well known commercial types. In its preferred embodiment it is a complete ventilating fan, including motor 5 means, fan blades,.and'necessary wire connections. In addition to the foregoing, the invention consists of an unique carrying or storage case that will enclose fan and wire means when not in service.

10 The enclosure means serves several purposes,

for instance; complete fan and wire enclosure nmeans, forming a compact and dust proof case; use of part of enclosure case to form a support means; providing means whereby a complete 15 fan unit oanbe readily carried in a traveling bag, and put in operation with a minimum effort. 1

When thefan is to be used, unlatching one or 'both lids allows access to the fan, both lids can 20 be placed under the case proper and used as supports or legsto hold the center line of the fan up some distance, from the object it is placed on; or the case lids can-be opened up to ap'proximately QO degrees in which case the center. line 25 of fan will be at its minimum. I

The motor with fan means can be installed on a base plate and the wire guard made inte- ,gral with the base plate. When made up in this manner, the fan can be removed from case and I .40 Fig. 1 shows front of the complete fan unit with lids or case covers 6, opened up to form a supporting stand for the case 4 and the fan unit 3. This View also shows stationary blade guard I 2, integral to case 4. I 45 Fig. 2 shows side View of Fig. 1 at A-A and illustrates the use of lids 6, as legs or supporting 'unitsfor fan unit 3, and case 4. A method of connecting motor unit 3 to base 4 or I I is shown by I3. Fig. 3 is an enlarged sectional view of a means to lock and hold lids 6, in the position shown by Figures 1 and 2. The spring clip 1 is shown 1 bearing on part 9. .The position of clip I when lids B cover case 4 would be as at Ia. Figures 4 and 5 show motor means connected to asub base plate I I, and with wire guard I2,

integral with base plate II. The base plate II is slidable into position shown in case 41), as

shown by dotted lines 4?). Guide strips I0, hold the motor in a fixed position when placed in 5 case 4. d I

Fig. 6 shows the lids 6, in position when they are to be used to cover the open ends of case 4, as shown this results in a box like structure which in turn completely encloses the motor unit, 10 fan blades, blade guard and the lead in wire.

Fig, 7 is an enlarged sectional View of lid 6,

in a position where it acts to close the open end of case 4. A depression I5, is shown receiving the tip I 4a of part I4, this acting as a locking device.

I The term syncronous motor will describe a motor means that is self starting; does not employ brushes or commutators and will use alternating current; the speed or revolutions being some multiple of the current cycles being used, slippage excepted, and in its operation will not cause any perceptible disturbance in radio reception or disturb operation of apparatus using vacuum tubes.

The case 4 is shown as a rectangular shape, this however, can be any irregular shape, round or semi-round shape. The motor and blade guard means can be placed on a sub base as shown by Figures 4 and 5.

The hinged lids 6, can beused as supporting legs as shown in Fig. 2, or they can be opened approximately 90 degrees which would lower the center line of fan in respect to the structure it is placed on. Y 5

Due to the type of fan motor to be used, sufficient space will be available in case 4 to store the lead-in wire with its connector.

The lids 6, can be hinged to case 4, and a locking device similar to I can be used to hold the lids in position when they are used as a support.

The motor with fan means can be enclosed in a case with one removable lid, in this event the motor and fan means would be removed from case when operating; the case would only be used for storage.

Due to the simplicity of the complete unit, all that is required to put the unit in service is I the uncovering of case structure by moving the wire'can' be placed in case and covers usled'to' When the fan is-not used, or is to be placed in storage; or is to be transported, the lead-in close the open ends.

Having thusdescribecl my invention, what I' tached to one of said walls, a plurality ofhinged closure walls which when in a closed position serve to complete the enclosure for the motor and fan, said closure walls separately hinged to the one of the fixedly joined Walls which-forms the bottom of the device when the device is'in a normal position, and latching means serving to secure the hinged walls vat more than 90 from their closed position to form a support for theassembly;

JOSEPH M; BARRETT. 10'