Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3088417 A
Publication typeGrant
Publication dateMay 7, 1963
Filing dateSep 14, 1961
Priority dateSep 14, 1961
Publication numberUS 3088417 A, US 3088417A, US-A-3088417, US3088417 A, US3088417A
InventorsCurtis D Johnston
Original AssigneeCurtis D Johnston
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for pumping fluids
US 3088417 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

May 7, 1963 Filed sept. 14. 1961 IWI llmulll C. D. JOHNSTON APPARATUS FOR PUMPING FLUIDS 3 Sheets-Sheet 1 lullin' lllllll Ylh Hmm" I May 7, 1963 c. D. JOHNSTON 3,088,417

APPARATUS FOR PUMPING FLUIDS Filed Sept. 14, 1961 3 Sheets-Sheet 2 ROAD LEVEL May 7, 1963 c. D. JOHNSTON 3,088,417

APPARATUS FOR PUMPING FLUIDs Filed sept. 14. 1961 s sheets-sheet s 4 MSN United States Patent j() j 3,088,417 APPARATUS FR PUMPING FLUIDS Curtis D. Johnston, P.0. Box 9, Black River, Jamaica, West Indies Filed Sept. 14, 1961, Ser. No. 138,147 3 Claims. (Cl. 10S-208) The invention generally concerns a pumping device and more particularly a pumping device operable by the weight of passing vehicular traiiic.

It is the object of the invention to provide a device for pumping liquid from one place to another by means of a double acting pump operated by the weight of vehicular traffic passing over a rocking platform.

Other objects and a fuller understanding of the invention may be had by referring to the following description and claims, taken in conjunction with the accompanying drawings, in which:

FIGURE l is a plan View of the invention installed in a traffic lane of a roadway,

FIGURE 2 is a longitudinal cross-section of the invention taken along section lines 2-2 of FIG. l showing partially the wheels of a vehicle variously positioned with respect thereto, and,

FIGURE 3 is a Vertical cross-section taken along section line 3-3 of FIG. l.

Referring to the drawing, a rocking platform having oppositely disposede ends 11 is mounted in a traic lane of a roadway 12 on a vertical support 13 positioned intermediate the oppositely disposed ends. The rocking platform 10 extends longitudinally along the roadway 12 and is trasversely pivoted to the vertical supports 13 by a pivot member 14. The pivot members 14 act as a fulcrum and support the fulcrumed portion of the rocking platform 10 above the roadway so that the ends 11 of platform 10` are alternately flush with the roadway 12 and above the roadway as the platform is pivoted about its pivot member 14 to the alternate positions shown in full iand dotted lines respectively. Hinged steel ramps 16 attached to the ends 11 of the platform 10 form an incline up to the raised end of the platform and lie at on the roadway at the lowered end. Friction plates 17 are fastened in the roadway on which the hinged plates 16 slide as the ends are raised and lowered. Mounted adjacent each end 11 of the platform 10 double acting pumps 18 are operably attached thereto by their plungers 19. Each pump has upper and lower delivery pipes 20 and 22 with upper and lower intakes 24 and 26 which are connected respectively to wherever liquid is desired and to a source of liquid. The double acting pumps 18 may be of any design known to the art, for example, reciprocating, whereby each pump simultaneously draws liquid in on one side of its plunger as it delivers liquid on the other side of the plunger for movement of the plunger in both directions of its reciprocating motion.

In operation, a vehicle having a front wheel 28 and a rear wheel 30 traveling along a traiiic lane in a roadway runs up the steel ramp on the raised first end of the platform. The pressure of the wheel 28 pivots the platform around its pivot members to depress the first end on which the vehicle is traveling and to raise the other second end. These movements of the respective platform ends, which are directly attached to the respective plungers of the double acting pumps, actuate each of the plungers one stroke to pump liquid through the respective lower and upper delivery pipes of the respective pumps. When the vehicle passes over the fulcrumed portion of the platform toward the farther and now raised second end of the oppositely disposed ends of the platform, the pressure of wheel 28 depresses this raised second end and thereby raises the depressed iirst end for actuations by the wheels of the next vehicle. These movements of the respective 3,088,411 vPatented May 7, 1963 ends of the platform again actuate their respectively attached plungers one stroke to pump liquid through the respective upperrand lower delivery pipes of the respective pumps to complete an up and down reciprocating pumping cycle for each pump.

If the platform is designed to have a total length of more than the longitudinal distance between the Wheels of a vehicle or its wheelbase and the distance between each platform end and the pivot members are less than said wheelbase, cach pair of front and rear Wheels of a four wheeled vehicle will alternately act-uate the platform to pivot about its pivot members and complete 3 cycles of up and down reciprocation. Thus the front Wheels 28 will initially depress the irst end and raise the second end. As the distance between the first end and the pivot members is less than the wheel base, the front wheels will travel beyond the pivot member and depress the second end and raise the iirst end of the platform before the rear wheels 30 engage the tirst end thereby completing one cycle of up and down reciprocation for each end. As the rear wheels pass on to the first end, this first end is depressed and the second end raised by the greater leverage exerted by the rear wheels on its side of the pivot members relative to that exerted by the front wheels on its side of the pivot member. As the vehicle travels farther on the platform the relative leverage of the front and back wheels is reversed and the second end is depressed and the rst end raised to complete the second cycle. As the front wheels leave the platform the rear wheels have not reached the pivot member and the lirst end is depressed and the second end raised. When the rear wheels pass over the pivot member to the second end this is finally depressed and the rst end raised to complete the third cycle.

Although the invention has been described with a certain degree of particularity, it is understood that the present disclosure has been made only by way of example and that numerous changes in the details of construction and the combination and arrangement of parts may be resorted to without departing from the spirit and the scope of the invention as hereinafter claimed.

=What I claim and desire to secure by Letters Patent is:

1. A pumping device for pumping liquid from one place to another in combination with a traic lane of a roadway, said pumping device operable by the successively applied pressures of passing vehicles utilizing said roadway, said vehicles having longitudinally spaced wheels, support means mounted below said traliic lane, platform means having oppositely disposed ends and pivotally supported intermediate said ends on said supporting means to extend congruent with said traffic lane, with one said end ilush with said roadway and the other said end raised thereabove; steel ramps hinged to each end of said platform means and extending slidably over adjacent portions of said traffic lane for forming alternate inclines up to the alternately raised ends of said platform means; friction plates mounted on said adjacent portions of said roadway for providing a smooth non-friction surface on which said steel ramps respectively slide; double acting reciprocating pump means for pumping fluid operably connected to one of said oppositely disposed ends, said pump having a reciprocating plunger mounted thereon and a pair of intake and delivery pipes on each of the opposite sides of said plunger for simultaneously effecting intake and delivery of liquid respectively on said opposite sides for movement in each direction of said plungers reciprocation, 4whereby said vehicles passing from one said end to the other of said platform alternately applies weight to said ends to solely drive said platform, pivotally supported between said ends, to solely reciprocate up and down to drive said plunger of said double acting pump means in both directions of said plungers reciprocation.

2. A pumping device as described in claim 1 wherein said platform means is pivotally supported equidistant from both its ends, and each said end is operably connected to a double acting pump means, thereby doubling the pumping action of said pumping device.

3. A pumping device as described in claim 1 wherein said platform means is pivotally supported equidistant from both its oppositely disposed ends, and each said end is operably connected to a double acting pump means, and the distance from each said end to said support means is less than the distance between said longitudinally spaced wheels of said vehicles with the distance between said ends more than said distance, whereby each said oppositely disposed end of said platform means completes three cycles of an up and down reciprocation to sextuple said 5 pumping action.

References Cited in the le of this patent UNITED STATES PATENTS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US159660 *Nov 24, 1874Feb 9, 1875 Improvement in modes of obtaining motive power
US2020361 *Jun 16, 1934Nov 12, 1935Clarence W H JohnstonAir compressor
GB191409664A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4173431 *Jan 16, 1978Nov 6, 1979Nu-Watt, Inc.Road vehicle-actuated air compressor and system therefor
US4212598 *Jul 20, 1978Jul 15, 1980Energy Development CorporationTraffic-operated air-powered generating system
US4700540 *Jan 16, 1985Oct 20, 1987Byrum Baney LCollapsible self-recovering cylinder discrete impulse motor
US7629698 *Oct 19, 2005Dec 8, 2009Dimitrios HorianopoulosTraffic-actuated electrical generator apparatus
U.S. Classification417/229
International ClassificationF04B9/14
Cooperative ClassificationF04B9/14
European ClassificationF04B9/14