|Publication number||US2540364 A|
|Publication date||Feb 6, 1951|
|Filing date||Jul 26, 1946|
|Priority date||Aug 24, 1945|
|Publication number||US 2540364 A, US 2540364A, US-A-2540364, US2540364 A, US2540364A|
|Inventors||Adams Francis Victor|
|Original Assignee||Adams Francis Victor|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (1), Referenced by (9), Classifications (11)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Feb. 6, 1951 v, ADAMS 2,540,364
FLOW CONTROL MEANS Filed July 26, 1946 Ve7'ZZ Francw M Adams Patented Feb. 6, 1951 UNITED STATES TENT FLOW CONTROL MEANS Francis Victor Adams, Sandringham, New Zealand Application July 26, 1946, Serial N o.
In New Zealand August 24, 1945 3 Claims.
This invention relates to improved means designed for use in the delivery or dispensing of liquids in controlled quantities into receiving vessels, by syphoning action from a holder containing a body of the same.
The invention is concerned with the use in respect of a flexible syphoning tube, of means whereby the syphoning flow delivery of the liquid may be readily controlled to stop and start at will. It is of special use in such circumstances wherein a number of vessels are to be charged with liquid from a main quantity thereof and provides for the flow being effectively stopped as each vessel is charged, and re-started as the charging of the next vessel is to be effected.
The said means are of a nature such as to combine with the delivery end of a flexible syphon tube, to provide a holder for the said end by means of which the discharge may be directed into different vessels and to afford facility for the tube passage being closed by the pinching of the tube with hand pressure, and opened up again by the release of the pinching action.
The invention will be further described, with the aid of the accompanying sheet of drawings in which- Figure 1 is a front View of the apparatus in the working or flow position.
Figure 2 is a side View thereof.
Figure 3 is a back view.
Figure 4 is a cross-section on the line 4-4 of Figure 2, and
Figures 5 and 6 illustrate the apparatus in the stopped position hereunder described.
According hereto the invention comprises a length of tube A of rubber or the like resilient material, having combined with its delivery end a nozzle B, made of any suitable rigid material inserted in such end for a distance, and extending continuously with the tubes end. The bore of the nozzle may be of such a diameter, dependent upon the pressure flow of the liquid as desired. A rigid sliding band C is provided to slide up over the tube end where it encloses the nozzle B to make a holding grip thereon. This band C may be cut with a longitudinal slot CI, for adjustment or installation of nozzles of different bore diameter, if required. Formed with or rigidly attached to, such band C, is a handle forming loop D, of metal sheet, plastic or the like, designed to deceive the four fingers of the operators hand so that it may be closed round the side of the loop, as shown in the drawings. The loop D is arranged to extend in line with the syphon tubes length. A small metal ring E is provided and enclosed loosely upon the loop and this is designed for use in the manner hereinafter explained. Over the flexible part of the tube A, above the nozzle fitting it is enclosed by a buckle and strap F for the attachment of the tube to the thumb of the user in the use of the device.
In the use of the invention, the fingers of the operators hand are passed through the handle loop D in a manner to position the tube on the inside of the fingers and to direct the nozzle end of the tube out from the side of the hand and into the receiving vessel. The flexible part above the nozzle fitting is supported by the adjustable strap F fastened to the thumb. When, therefore, the thumb is turned out from the hand, the tube passage opens to its normal, but when the thumb is turned in against the hand and the fingers slightly closed, the tube becomes pinched between them and its passage closed. Thus, by the manipulation of the hand, the syphon tube may be opened and closed at will. Again where the operator desires to temporarily out off and hold the liquids flow, the small ring E on the handle loop may he slipped over a doubled up part of the tube, as illustrated in Figure 6.
If the syphon is operating to permit of the flow of liquid through it, such flow may be stopped, and allowed to commence again at will, as long as the syphon tube remains charged in the ordinary manner of the use thereof.
1. Means for use in the delivery of liquids by syphoning action comprising the combination with the delivery end of a flexible syphon tube of a holder to which such end is attached, said holder being adapted to be attached to the fingers of a hand of an operator, and means adapted to be attached to the thumb of said hand of the operator and enclosing a portion of the tube so that by the opening and closing actions of the hand the tube passage may be respectively opened and closed in the portion of the tube between said holder and said means.
2. Means for use in the delivery of liquids by syphoning action comprising the combination with the delivery end of a flexible syphoning tube, of a nozzle inserted in such end and extending continuously therewith, a band enclosing the tube and nozzle, a handle loop adapted to receive the fingers of an operators hand to which the said band is attached, and a strap adapted to encircle the thumb of the operators hand and the said flexible tube, said strap bein so related to the band that both are adapted to receive portions of the tube at the same time.
3. Means for use in the delivery of liquids by syphoning action according to claim 2, the provision of a ring loosely encircling the handle loop.
FRANCIS VICTOR. ADAMS.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 525,816 Osborn Sept. 11. 1894
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US525816 *||Jun 6, 1894||Sep 11, 1894||Dental apparatus|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2922613 *||Jun 1, 1951||Jan 26, 1960||Cutter Lab||Pinch valve|
|US3045494 *||Mar 13, 1958||Jul 24, 1962||Gerarde Horace William||Method of providing for blood count and pipette and assembly for use therein|
|US3921563 *||Sep 30, 1974||Nov 25, 1975||Fortune Dev Corp||Pneumatic alarm system|
|US4140020 *||Mar 24, 1978||Feb 20, 1979||Syva Company||Seal-free pipette device|
|US4354660 *||Feb 2, 1981||Oct 19, 1982||Baxter Travenol Laboratories Inc.||In-line flow control clamp|
|US4896392 *||Mar 28, 1988||Jan 30, 1990||Hull Harold L||Cleaning device|
|US6056260 *||Jul 22, 1998||May 2, 2000||Flexcorp||Seamless fluid flow control system|
|US6193892||Mar 3, 1999||Feb 27, 2001||Promega Corporation||Magnetic separation assembly and method|
|US20070102380 *||Nov 4, 2005||May 10, 2007||Shaw Robert N||Adjustable strap mounting system|
|U.S. Classification||251/4, 73/864.11, 422/606|
|International Classification||F04F10/00, B01L3/02|
|Cooperative Classification||B01L3/02, F04F10/00, B01L2400/0655, B01L2400/0457|
|European Classification||F04F10/00, B01L3/02|