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 numberUS1596933 A
Publication typeGrant
Publication dateAug 24, 1926
Filing dateJun 23, 1924
Priority dateJun 23, 1924
Publication numberUS 1596933 A, US 1596933A, US-A-1596933, US1596933 A, US1596933A
InventorsKister Jake, Albert E Livingston
Original AssigneeKister Jake, Albert E Livingston
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Force pump
US 1596933 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Aug. 24 192's. 596,933

J. KISTER ET AL FORCE PUMP Filed June 23, 1924 J Mater A Z7. Livvmgsl'on Patented Aug. 24,



Application fiIed June as, 1924. seria no. 721,761..

- theembalming fluid into the body, thereby setting up pulsations simulating those pro duced by the human heart so that there is no danger of stoppage of flow during the embalming process due to clots.

A further object is to provide device of this character'which can be operated easily and which is formed of but few parts.

lViththe foregoing and other objects in TiBW which will appear as the description aroceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it' being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of. what is claimed without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings Figure 1 is a side elevation of the structure.

Fig. 2 is an end elevation thereof. Referring to the figures by characters of reference 1 designates a base block secured between wings 2 upstanding from an attaching brackets 3, this bracket 3 being provided with a bolt 4 whereby it can be attached readily to a supporting structure. The wings constitute bearings for a shaft 5 to which is secured a rotor 6. A crank? is connected to the shaft and by means thereof the wheel can be rotated readily.

Formed in the periphery of the wheel are regular spaces8 each of which gradually increases in depth toward one end. Arranged within each recess is a leaf spring 9, one end of which is attached to the'periphery of the wheel as shown at 10'while the other end is bowed outwardly as at 11 to provide a compressing shoe normally projecting beyond the periphery of the wheel.

The top of the block 1 is concaved longi tudinally as at 12 so as to lie substantially concentric with the shaft 5. Thewvings 2 are formed with tubular extensions 13 in which is seated a flexible compress ble .tube

14. This tube extends between the block 2, and the wheel 6 and provided, at one endwith a coupling 15. In using this device the intake tube'us'ed for supplying fluid to the pump is connected to the coupling 15' while the other end of the tube lt is adapted to supply the fluid to the body. After proper connections have been made the wheel 6 is rotated in the direction indicated by the arrow in Fig. 1. This will cause the shoes 11 to move successively into contact with that portion of the tube above block 2.

Thus the shoe will place the tube under compression and will flatten it at the points of contact. Obviously as the wheel'is rotated, the compressed portion will'be shifted longitudinally of the tube so that any fluid contained in the tube in the path of the compressed portion will be expelled therefrom.

Shortly afterone shoe has moved out of contact with the tube another shoe comes into contact therewith, compresses it, and wipes longitudinally along the tube. Thus a pulsating pumping action is set up which will force the embalming fluid into the body intermittently and tend to break up clots and such action simulates that set up by the human heart which has been found in practice that the body is more readily embalmed than would otherwise be possible.-

that the distance between the ends of the concaved face of the block 1 is less than the distance between any two adjoining shoes 11 of the roton Thus it is possibleto bring the rotor to a po-sitionwhere the shoes will be above or beyond the end of the block and not fully compressing the tube. Y'Vhen the referring to Figure 1 it will be noted shoes are thus. located liquid can flow freely I through the tube.

The shoes can be adjusted toincrease or reduce the pressure on the tube simply by adjusting the screws 10. By loosening those screws nearest the endsofthe springs 9 and tightening the remaining screws the shoes can be shifted inwardly toward theraxis of the rotor. By reversing this adjustment the shoescan be adjusted outwardly from the rotor. p I

'Whatis claimed is A pump including a block' a rotor having its axis iii led relative'to the block, said ro tor having a series of peripheral recesses gradually increasing in depth 1n a ClllBOtlOlT opposite to the direction ofrotation, springs extending partly around the rotor and seated 'within the respectiverece-sses, means for adjustably attachingthe' advancing ends of the springs to the Walls of the recesses at the shallow or outer ends thereof, the other end of each spring being bowed outwardly to constitute a compressing shoe, said block having a concave face a portion of which is concentric with the aXis of the rotor, the length of said concentric portion being less than the distance between any two shoes of the rotor, a flexible tube supported by the 10 concave face of the block for successive engageni-ent by the shoes, said shoes constitut- In testimony that We claim the foregoing as our own, We have hereto affixed our signatures.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3011684 *Jan 13, 1959Dec 5, 1961Corneil Ernest RLiquid dispensing machine
US4184815 *Mar 14, 1977Jan 22, 1980Extracorporeal Medical Specialties, Inc.Roller pump rotor with integral spring arms
US4214855 *Jun 29, 1978Jul 29, 1980Gerritsen Jan WPeristaltic type pump
US4830227 *Nov 10, 1986May 16, 1989Metal Box PlcDispensers for pasty or viscous products
U.S. Classification417/477.7
International ClassificationF04C5/00
Cooperative ClassificationF04C5/00
European ClassificationF04C5/00