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Publication numberUS2595406 A
Publication typeGrant
Publication dateMay 6, 1952
Filing dateSep 9, 1948
Priority dateSep 9, 1948
Publication numberUS 2595406 A, US 2595406A, US-A-2595406, US2595406 A, US2595406A
InventorsJohn E Popovich
Original AssigneeJohn E Popovich
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Flashlight fan
US 2595406 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

y 6, 1952 J. E. PQPOVICH 2,595,406

FLASHLIGHT FAN Filed Sept. 9, 1948 50 I8 y 7Q 40 36' I 45 F/'g./. 20 30 John E. Popow'ch IN VENTOR.

Patented May 6, 1952 UNITED STATES PATENT OFFICE FLASHLIGHT FAN John E. Popovich, Oakland, Calif.

Application September 9, 1948, Serial No. 48,484

4 Claims. (Cl. 230-259) This invention relates to novel and useful improvements in attachments for use with-conventional flashlight casings; batteries, switch contacts, and elements.

An object of this invention is to supply a purely conventional flashlight casing, switch, switch contacts, flashlight batteries, etc. with an attachment whereby it may be converted into a pockettype fan.

Another object of this invention is to replace the reflector and lens assembly along with the collar normally associated therewith at an end of a conventional flashlight with an attachment, substituting a motor, air impeller and threaded collar, whereby quick and ready conversion from a flashlight to a fan may be effected.

Another object of this invention is to provide an extremely simplified device of the character to be described which is commercially feasible, practical and inexpensive.

Ancillary objects and features of novelty will become apparent to those skilled in the art, in following the description of the preferred form of the invention, illustrated in the accompanying drawings, wherein:

Figure 1 is an elevational side View of the preferred form of the invention, portions being broken away in section to illustrate details of construction;

Figure 2 is a sectional view taken substantially on the line 2-2 of Figure 1 and in the direction of the arrows; and

Figure 3 is a fragmentary perspective view showing the attachment associated with a conventional flashlight casing fragment.

Ready attachment and detachment is one of the prime features of the present invention. Further, the adaptability of the device characterizing the invention to conventional flashlight casings and mechanisms is of great importance. Any flashlight of conventional description presently owned by individuals may be converted to a flashlight type fan by removal of the collar maintaining the lens, lamp and reflector from.

the flashlight casing and the substitution of the collar, motor and air impeller forming the major portion of the assembly of the instant attachment.

Referring to the drawings, it is seen that a conventional flashlight casing I is provided with a conventional switch [2, as well as a pair of conventional switch contacts l4 and 16, one being stationary while the other is slidable with the switch I2.

Normally, these contents would engage the reflector and lamp of a conventional flashlight. However, in Figure 1, it is readily appreciated that they are in engagement with a motor casing and a contact 20 in order to supply energy from the battery (unshown) in the casing IEI.

A collar 22 is supplied with internal threads at 24 which are complemental to the threads 26, normally found adjacent flashlight end openings. The threads 26 are used for the purpose of retaining the unshown conventional lens and reflector retaining collars in place in the usual flashlight structure.

In order to maintain the motor IS in the proper position, a partition 28 is formed integral or rigidly secured to the collar 22 and has a central opening (unnumbered) therein. This central opening accommodates the shaft 39 of the said motor l8, which shaft has a conventional smallsize air impeller or blade 32 attached thereto by any suitable means such as the nuts 34.

The said partition 28 is also utilized for the purpose of supporting the bolts 36 which are, in turn, secured to suitable bosses 46 attached to the motor l8. This, of course, mounts the motor on the partition.

A closure 46 having a number of openings 48 therein is attached to the forward end of the collar 22 by means of a ring-type recess 50 formed in the said collar 22. The closure 46 is simply slipped into place, relyin on the resiliency of the material to maintain it in the proper location. Of course, this closure 46 may be obviated if it is found desirable or may be attached in any suitable manner. Further, it is within the purview of the invention to utilize a screen or other foraminous member in lieu of the closure 46.

On the upstream side of the blade or impeller 32 and formed in the collar 22 is a number of air inlet openings or passages 52 which are inclined with relation to the shaft 32. These openings are used as air inlets, the partition blocking airflow from within the casing. The angle of inclination of the openings 52 is proper, since the axis of each opening, if projected forwardly, would strike the blade or air impeller 32 at substantially seventy-five per cent chord, which is the most efficient part of the fan blade. By this medium, air is pulled directly through the opening 52 in a direction whereby it will contact without substantial circulation within the collar 32, the most eflicient portion of the blade 32. Maximum traction of air is thus produced.

While there has been described and shown but one form of the invention, it is apparent that variations may be made without departing from the spirit thereof. Accordingly, limitation is sought only in accordance with the scope of the following claims.

Having described the claimed as new is:

1. In combination with a flashlight housing having a threaded opening and switch contacts, a fan attachment comprising a collar having threads adapted to be detachably secured to the threaded housing opening, a motor, means separating said collar into a motor chamber and a fan blade chamber and attached to said collar supporting said motor in the motor chamber for operative connection with the switch contacts, a fan blade located in the blade chamber and disposed within said collar and drivingly connected with said motor, and said collar having air inlet openings upstream of said air impeller, intermediate the front and back ends of said collar and in the blade chamber. I

2. The combination of claim 1 and said motor supporting means comprising a partition in said collar with fastening elements carried by said partition.

3. The combination of claim 2 and an apertured protective cover mounted in said collar.

invention, What is 4. In a casing having a switch and an opening therein, a collar detachably secured in communication with said opening, a partition in said collar, a motor supported by said partition and having a shaft, a fan blade secured to said shaft and disposed within said collar, air inlet passages in said collar angularly inclined with respect to the axis of the shaft, and the projected axis of the passages intersecting the blade intermediate the hub and the tips thereof.


REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,108,053 Wiwi Aug. 18, 1914 1,473,045 Puttaert, et al Nov. 6, 1923 1,504,003 Trumbull Aug. 5, 1924 2,245,015 Sibal June 10, 1941 FOREIGN PATENTS Number Country Date 223,834 Switzerland 1942

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1108053 *Jul 28, 1913Aug 18, 1914Thomas R WiwiPortable electric fan.
US1473045 *Feb 13, 1922Nov 6, 1923Marcel MoreauPortable electric fan
US1504003 *May 28, 1923Aug 5, 1924Fairchild Trumbull AustinFan attachment for flashlights
US2245015 *Dec 2, 1939Jun 10, 1941Sibal LudvikCombined flashlight and fan
CH223834A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2745598 *Jun 15, 1953May 15, 1956Conesa Martinez AntonioFan
US2759714 *Jan 11, 1954Aug 21, 1956Ayup Gilbert JPortable fan
US2792699 *Jun 11, 1953May 21, 1957Lamm William RCandle applicator
US2803527 *Jul 6, 1956Aug 20, 1957Lundahl Robert OPortable electric fan unit
US2850228 *Oct 30, 1956Sep 2, 1958Arthur RowleyBlower
US2909316 *Mar 20, 1957Oct 20, 1959Karla Prohaczka CarolinePortable fans
US3099386 *Sep 30, 1960Jul 30, 1963Pieper Howard BPortable blower
US3809504 *Sep 5, 1972May 7, 1974Goossens DBlower head for flashlight
US4021150 *Jun 30, 1975May 3, 1977Mabuchi Motor Co. Ltd.Battery powered pump
US5851106 *Feb 17, 1998Dec 22, 1998Innovative Design Enterprises, Inc.Portable fan device
US6237621Jul 14, 1997May 29, 2001Robert B. ChaffeeValve for inflatable objects
US6237653Aug 13, 1999May 29, 2001Robert B. ChaffeeSwitchable inflation device
US6290469 *May 13, 1997Sep 18, 2001Frank E. ArchibaldHand held, self-powered pump
US6508264May 29, 2001Jan 21, 2003Robert B. ChaffeeValve for inflatable objects
US6598626May 29, 2001Jul 29, 2003Robert B. ChaffeeSwitchable inflation device
US6755208Dec 23, 2002Jun 29, 2004Robert B. ChaffeeValve for inflatable objects
US6986360Mar 16, 2004Jan 17, 2006Chaffee Robert BValve for inflatable objects
US6990994Feb 21, 2003Jan 31, 2006Kelsyus, LlcValve for inflatable article
US7017871 *Mar 12, 2003Mar 28, 2006Chen Chung-Yang MElectric appliance stand with simple telescopic support rod
US7938138Nov 4, 2005May 10, 2011Robert B. ChaffeeValve for inflatable objects
US8162009Apr 4, 2007Apr 24, 2012Chaffee Robert BMethod and apparatus for monitoring and controlling pressure in an inflatable device
US8225444Jan 6, 2009Jul 24, 2012Chaffee Robert BInflatable device forming mattresses and cushions
US8307841Nov 13, 2012Chaffee Robert BValve for inflatable objects
US8413278Mar 13, 2009Apr 9, 2013Robert B. ChaffeeMethod and apparatus for monitoring and controlling pressure in an inflatable device
US8839474Apr 23, 2012Sep 23, 2014Robert B. ChaffeeMethod and apparatus for monitoring and controlling pressure in an inflatable device
US9086162Nov 13, 2012Jul 21, 2015Robert B. ChaffeeValve for inflatable objects
US9289073Apr 9, 2013Mar 22, 2016Robert B. ChaffeeMethod and apparatus for monitoring and controlling pressure in an inflatable device
US20040089368 *Jul 29, 2003May 13, 2004Chaffee Robert B.Switchable inflation device
US20040149869 *Mar 12, 2003Aug 5, 2004Chen Chung-Yang M.Electric appliance stand with simple telescopic support rod
US20040163707 *Feb 21, 2003Aug 26, 2004Reeb David L.Valve for inflatable article
US20040200527 *Mar 16, 2004Oct 14, 2004Chaffee Robert B.Valve for inflatable objects
US20050084400 *Oct 20, 2003Apr 21, 2005Lung-Po TsaiElectrical air blower
US20060054855 *Nov 4, 2005Mar 16, 2006Chaffee Robert BValve for inflatable objects
US20060162779 *Oct 11, 2005Jul 27, 2006Chaffee Robert BMethods and apparatus for controlling air in inflatable devices
US20070227594 *Apr 4, 2007Oct 4, 2007Chaffee Robert BMethod and apparatus for monitoring and controlling pressure in an inflatable device
US20090300846 *Dec 10, 2009Chaffee Robert BInflatable device forming mattresses and cushions
US20090314354 *Mar 13, 2009Dec 24, 2009Chaffee Robert BMethod and apparatus for monitoring and controlling pressure in an inflatable device
US20100089458 *Dec 12, 2009Apr 15, 2010Chaffee Robert BMethods and apparatus for controlling air in inflatable devices
EP1359325A2 *Aug 13, 1999Nov 5, 2003CHAFFEE, Robert B.A switchable inflation device
WO2000009890A1 *Aug 13, 1999Feb 24, 2000Chaffee Robert BA switchable inflation device
WO2008112545A1 *Mar 7, 2008Sep 18, 2008Bath Solutions, Inc.Scented fan
WO2010086595A2 *Jan 27, 2010Aug 5, 2010John Anthony DavisonA child's toy including a fan and light device
WO2010086595A3 *Jan 27, 2010Oct 28, 2010John Anthony DavisonA child's toy including a fan and light device
U.S. Classification417/236, 417/313, 417/411
International ClassificationF21V33/00, F04D25/08, F04D25/02
Cooperative ClassificationF21V33/00, F21L7/00, F04D25/084
European ClassificationF21L7/00, F21V33/00, F04D25/08C