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Publication numberUS1995007 A
Publication typeGrant
Publication dateMar 19, 1935
Filing dateJul 12, 1934
Priority dateJul 12, 1934
Publication numberUS 1995007 A, US 1995007A, US-A-1995007, US1995007 A, US1995007A
InventorsMyers Thomas L
Original AssigneeMyers Thomas L
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Theft preventer for gasoline tanks
US 1995007 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

vMarch 19, .1935. I T. l.. MYERS 1,995,007

THEFT PREVENTER Fon GAsoLINE TANKS Filed July 12, 1934 Patented Mar. 19, 1935 UNITED sTAT'Es PATENT OFFICE Thomas L. Myers, Phoenix, Aria. Application July 12, 1934, Serial No. 734,872

3 Claims.

This invention relates to devices for preventing the theft of gasoline from automobile tanks and has for its object to provide a theft preventer of thischaracter which is so constructed as to prevent either the insertion of a rubber tube into the gasoline tank for the withdrawal of gasoline therefrom or to prevent a suction pump being applied vto the inlet pipe for the purpose of Withdrawing the gasoline bodily through the pipe.

My invention is illustrated in the accompanying drawing, wherein:-

Figure 1 is a sectional view through the upper wall of the gasoline tank showing in section my invention applied thereto;

Figure 2 is a like view to Figure 1 and showing the modified form of the inlet pipe.

Referring to the drawing, A designates the upper wall ofa gasoline tank of any usual or suitable construction. The inlet pipe B in Figure 1 whereby the tank A is filled is shown as having a curved upper portion or section 10 and then extending downward at right angles to form a section 11. The vertical portion 11 extends down into the tank. The portion 11 may be held to the top of the tank in any suitable way so as to prevent its easy removal. Any suitable cap may be used for this inlet pipe B as this has nothing to do with my invention.

The part 11 extends downward below the top A of the tank. Preferably a baille plate 12 is disposed within the inlet end of the section 10, this bale plate having numerous small perforations or apertures 13 through it. This baille plate acts as a shield preventing the insertion of a rubber tube or like element into the gasoline tank and the withdrawal of gasoline therefrom. A second apertured baille plate 14 is disposed within the vertical portion 11 of the tube and preferably just below the top A. Below this baille plate, the inlet tube is formed with a. plurality of vertical slots 15 and the lower end of the portion 1v1 is formed with an inturned flange 16. Normally resting upon this flange 16 and disposed below the lower end of the slots 15 is a float 17 which may be made of metal and hollow or may be made of any buoyantmaterial. This oat approximately ts the interior of the part 11 of the inlet pipe and has a fiat upper surface, adapted when the oat rises to t against the flat lower surface of the baille plate 14 so as to prevent the passage of liquid upward through the perforations of the baille plate 14.

Preferably, the lower end of the portion 11 is formed as a separate section from the upper end of the portion 11 and these sections are screw- (Cl. E20-86) threaded together at 18, the baille plate 14 resting upon the shoulder formed by the lower section 11a. The inlet pipe 10 is also formed in two sections joined to each other at 19, these sections being screw-threaded to each other and the baille plate l2 being held by the section 10 against the shoulder 20 formed on the elbowA 10a.

While I have illustrated in Figure 1 this inlet pipe as having reversed curves, I do not wish to be limited to this as obviously the same theft preventing means may be applied to an inlet pipe extending straight upward as shown in Figure 2. It is not believed necessary to particularly describe the construction shown in Figure 2 as precisely the same construction is shown in Figure 1 except that the inlet pipe is straight instead of being curved. It is obvious that the inlet pipe may be of various forms to conform to the requirements of cars of a special make without departing from the spirit of my invention. l

'I'he action of this device in preventing the thef of gasoline is as follows:-

, The baille plate 12 and additionally bale plate 14 prevents the insertion of any rubber tube or even a very small tube into the gasoline tank for the purpose of withdrawing or sucking out gasoline therefrom. The floating valve 17 will rise with the gasoline as the tank is lled so that even if anvsiphoning device could be gotten through the small apertures of the plate 12, yet the valve lying against the under face of the bale plate 14 would prevent the gasoline from being sucked out. If an automobile be tilted so that the gasoline rises in the tank, it will lift the valve 17 against the face of the baie 14, preventing any attempt to Siphon or suck out liquid from the tank. When the gasoline tank is full, the float 17 rests on top of the gasoline and against the baiile 14 and any suction exerted' on the upper open end of pipe 10 will, under these circumstances, cause the float to press harder against the baille and prevent thepassage of gasoline from below the float. As the gasoline is used from the tank, the float drops with the level of the gasoline until it rests eventually on the flange 16 at the lower end 'of the pipe section 11a, thus unclosing the slots 15 in the side of the pipe which allows the gasoline to enter the tank when lling.

Obviously many minor changes might be made in this device without departing-from the spirit 'r of the invention as defined in the appended claims.

I claim:--I 1. A theft preventing inlet pipe for gasoline tanks, the pipe having therein a transversely extending baille perforated with a plurality of small holes, the baie being horizontally disposed having a fiat under face, the pipe extending below the bailie and having apertures below the baiiie, and a float normally disposed below the apertured portion of the inlet pipe and having a at upper surface adapted when the iloat is raised to bear against the at under surface of the baille and prevent the passage of liquid therethrough.

2. A theft preventing inlet pipe for automobile gas tanks having a plurality of bai'les in its length, each baille being perforated with a plurality of small apertures, one of said baies being located in a horizontal plane andbelow the top of the gasoline tank, the inlet pipe extending below said last named baleland being formed with a plurality of vertical slots in the wall of the pipe opening into the interior of the tank, the lower end of` the pipe being open, and a oat disposed within the end portion of said pipe below said slots, and having a at upper surface adapted to contact with the last named baile when the oat is raised and prevent the passage of liquid therethrough.

3. A theft preventing inlet pipe for gasoline tanks, the pipe having in its length a baflie plate extending transversely across the pipe and a oat disposed in the lower portion of the pipe below the baille plate and seating against one face of said baffle plate to prevent the passage of liquid therethrough when the oat is raised against the baille plate.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2548734 *Nov 5, 1947Apr 10, 1951Scully Signal CoInsertable vent pipe
US3198376 *Feb 19, 1963Aug 3, 1965Int Harvester CoHydraulic reservoir diffuser
US3951297 *May 6, 1974Apr 20, 1976Carlos A. RiquelmeAnti-siphon gas tank adaptor
US5476185 *Nov 23, 1994Dec 19, 1995Snyder Tank CorporationRemovable anti-siphon fillneck screens for fuel tanks
US7258144 *Apr 19, 2002Aug 21, 2007Total Fina Elf FranceDevice for homogeneous distribution of a fluid in a chamber and uses thereof
US7303089 *Feb 24, 2006Dec 4, 2007Keller Russell DAnti-siphon fuel cap and filler tube assembly
US8122904Sep 28, 2008Feb 28, 2012Tiss LimitedAnti siphon tank inlet
US8181678 *Jun 25, 2009May 22, 2012Toyoda Gosei Co., Ltd.Fueling device
US8550279 *Mar 9, 2009Oct 8, 2013Gregory K. AvakianAnti-siphoning fuel device, system, and method
US20050011972 *Apr 19, 2002Jan 20, 2005Daniel BarthodDevice for homogeneous distribution of a fluid in a chamber and uses thereof
US20060138139 *Feb 24, 2006Jun 29, 2006Keller Russell DAnti-siphon fuel cap and filler tube assembly
US20070228041 *Apr 27, 2007Oct 4, 2007Brian WholeyAnti siphon tank inlet and method
US20090134159 *Sep 28, 2008May 28, 2009Ryan WholeyAnti siphon tank inlet
US20090320956 *Jun 25, 2009Dec 31, 2009Toyoda Gosei Co., Ltd.Fueling device
US20100224260 *Mar 9, 2009Sep 9, 2010Avakian Gregory KAnti-Siphoning Device And System
US20130213964 *Feb 21, 2013Aug 22, 2013MAGNA STEYER Fuel Systems GesmbHSiphoning-off guard
CN101454170BMar 28, 2007Jan 30, 2013缇丝有限公司Anti siphon tank inlet
WO2007110640A1 *Mar 28, 2007Oct 4, 2007Tiss LimitedAnti siphon tank inlet
U.S. Classification220/86.3, 318/767
International ClassificationB60K15/04
Cooperative ClassificationB60K15/0403
European ClassificationB60K15/04C