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Publication numberUS2979210 A
Publication typeGrant
Publication dateApr 11, 1961
Filing dateApr 19, 1960
Priority dateApr 19, 1960
Publication numberUS 2979210 A, US 2979210A, US-A-2979210, US2979210 A, US2979210A
InventorsPatterson Edward B
Original AssigneeArthur H Thomas Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Test tube rack
US 2979210 A
Images(1)
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Description  (OCR text may contain errors)

April 11, 1961 E. B. PATTERSON TEST TUBE RACK Filed April 19, 1960 INVENTORQ EDWARD B. PATTERSON ATTORNEY TEST TUBE RACK Edward B. Patterson, Philadelphia, Pa, assignor to Arthur H. Thomas Company, Philadelphia, Pin, a corporation of Pennsylvania Filed Apr. 19, 1960, Ser. No. 23,278

Claims. (Cl. 21174) This invention relates to laboratory equipment, and more particularly to a test tube rack.

In a large laboratory, there is always the ever present problem in having on hand the correct size of test tube rack. A test tube rack that has its openings too large will not properly hold small test tubes. Conversely, if the test tube rack has openings too small, it will not accommodate large size test tubes. Thus, there is a need for a universal test tube rack which can support a wide variety of test tubes.

It is an object of this invention to provide a novel test tube rack.

It is another object of the invention to provide a novel test tube rack which will accommodate a wide variety of test tubes.

It is a further object of this invention to provide a test tube rack which is easily adjustable so as to accommodate various sized test tubes.

It is a still further object of this invention to provide a test tube rack which is simple, easily adjustable and inexpensive to manufacture.

Other objects will appear hereinafter.

For the purpose of illustrating the invention there is shown in the drawing a form which is presently preferred; it being understood, however, that this invention is not limited to the precise arrangements and instrumentalities shown.

Figure 1 is a perspective view of the test tube rack of this invention.

Figure 2 is a cross-sectional view taken along the lines 2-2 of Figure 1.

Figure 3 is a partial plan view of the test tube rack in Figure 1 in one of its adjusted positions.

Figure 4 is a partial plan View of the test tube rack of Figure 1 in another of its adjusted positions.

Referring to the drawing in detail, wherein like numerals indicate like elements, there is shown in Figure 1 a perspective view of a test tube rack 10.

The test tube rack 10 comprises a S-shaped body 12 and a C-shaped slide 14.

The S-shaped body 12 comprises top wall 16, de pending wall 18, middle wall 20, depending wall 22, and bottom wall 24. The walls 16 through 24 are structurally inter-related in the manner as shown in Figure 1 so as to form the S-shaped body 12. As seen more clearly in Figure l, the body 12 is made from a single sheet of material and the walls 16 through 24 are formed by bending the sheet of material forming the S-shaped body 12. As shown more clearly in Figures 1 and 2, the top wall 16 is provided with a depending flange 26 on each side thereof. The depending flanges 26 areprovided with inturned tabs 28. The tabs 28 are spaced from and parallel to the top wall 16. Thus, the flanges 26 and the tabs 28 cooperate with the top wall 16 to form a track on the inner surface of the top wall 16. As shown more clearly in Figure 1, the flanges 26 and tabs 28 are smaller in length than the length of top wall 16.

The middle wall 20 of the S-shaped body 12 is prowall 211 for a distance less than the length of middle wall 20. The track on the inner surface of the top wall 16 is parallel to and spaced from the track on the upper I surface of the middle wall 20.

The C-shaped slide 14 comprises a top wall 34, a bottom wall 36, and an end wall 38 which connects the top and bottom walls 34 and 36. The top wall 34 and the bottom wall 36 are parallel to one another and are ot a width slightly less than the width of top wall 16 and middle wall 20 of the S-shaped body 12. The top wall 34 of the slide 14 reciprocates in the track on the inner surface of top wall 16. The bottom wall 36 of the C-shaped slide 14 reciprocates in the track on the upper surface of the middle wall 20.

The top wall 16, the middle wall 20, the top wall 34, and the bottom wall 36 are each provided with a plurality of multi-sided holes which can be aligned by adjustment of the slide 14 relative to the body 12. Since each of the multi-sided holes in the top wall 16 and the middle wall 20 of the S-shaped body 12 are identical, only one hole need be described in detail.

As shown more clearly in Figures 1, 3 and 4, the top wall 16 of the S-shaped body 12 is provided with a multisided hole having the shape of a pentagon. The multisided hole in the top wall 16 comprises a hole defined by edge 40, parallel side edges 42 and 44, and converging edges 46 and 48.. The side edges 42 and 44 are perpendicular to the, adjacent edge 40. The converging edges 46 and 48 on each of the multi-sided holes in the top wall 16 and the middle wall 20 extend inthe same direction.

The top wall 34 and the bottom wall 36 of the C- shaped slide 14 are provided with a plurality of multisided holes which can be aligned with the multi-sided holes in the top wall 16 and the middle wall 20 by reciprocation of the C-shaped slide 14 relative to the S- shaped body 12. As shown more clearly in Figures 3 and 4, the walls 34 and 36 of the C-shaped slide are provided with a multi-sided hole which is identical with the shape of the multi-sided hole in the top wall 16 and the middle wall 20. The multi-sided hole in the top wall 34 is defined by edge 50, parallel side edges 52 and 54, and converging edges 56 and 58. The side edges 52 and 54 are perpendicular to the adjacent edge 50. The converging edges 56 and 58 extend in a direction away from end wall 38 on the C-shaped slide 14. Thus, it will be seen that the converging walls of the multisided holes in the C-shaped slide extend in a direction opposite to the direction of the converging edges on the multi-sided holes on the S-shaped body 12. Thus, in one adjusted position of the test tube rack, the multi-sided holes on the C-shaped slide 14 cooperate with the multisided holes on the S-shaped body 12 to define an opening 60. As shown in Figure 3, the opening 60 is in the shape of a hexagon. The opening 60 can support a test tube having an outer diameter smaller than the distance between parallel edges 52 and 54. As shown more clearly in Figure 4, the adjustment of the C-shaped slide 14 relative to the S-s-haped body 12 can result in an opening 62 which is smaller than the opening 60. The opening 62 is in the shape of a square. The opening 62, as shown in Figure 4, is defined by the edges 46, 48, 56 and 58. Opening 62 will accommodate a test tube having an outer diameter which is smaller than the distance across edges 46 and 56.

The test tube rack of the present invention is operated in the following manner:

The C-shaped slide *14 is adjusted relative to the S- shaped body 12 by movement of the end wall 38 in the direction of the arrow 66 in Figure 1. The C-shaped slide 14 reciprocates in the tracks on the top wall 16 and the middle wall 20 to vary the size of the opening defined by multi-sided holes on the top wall 16 and the middle wall 20 which are juxtaposed to multi-sided holes in the top wall 34 and the bottom wall 36. As shown in Figure 1, the test tube 64 extends through the opening defined by the multi-sided holes on the S-shaped body 12 and the C-shaped slide 14. The bottom of the test tube rests on the bottom wall 24 of the S-shaped body 12. As end wall 38 is moved further away from depending wall 18, the size of the opening defined by the multi-sided holes decreases so that smaller diameter test tubes may be accommodated on the test tube rack 10.

The C-shaped slide 14 and the S-shaped body 12 are preferably made from light weight, sheet metal or plastic. While the multi-sided holes have been shown as being in the shape of a pentagon, it is contemplated that other shaped holes may be substituted therefor.

The C-shaped slide 14 is capable of being reciprocated with the use of only one hand. Thus, an operator may adjust the position of the C-shaped slide 14 while holding a test tube in his other hand above the multi-sided holes so as to be able to quickly and accurately ascertain the desired position of the C-shaped slide 14. If desired, indicia may be provided on the upper surface of the top wall 34 which will indicate the size of test tubes which may be accommodated in any of the extended positions of the C-shaped slide 14.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof and, accordingly, reference shouldbe made to the appended claims, rather than to the foregoing specification as indicating the scope of the invention.

I claim:

1. A test tube rack comprising an S-shaped body, a multi-sided hole in the top and middle walls of said body, said holes being axially aligned, an adjustable slide having top and bottom spaced walls disposed between said top and middle walls on said body, an axially aligned multi-sided hole in each of the spaced walls of said slide selectively positionable in alignment with the multi-sided hole in the top and middle walls of said body whereby movement of said slide varies the opening through said holes so that various sized tubular elements may be accommodated on said body.

2. In a device as set forth in claim 1 wherein said multi-sided holes in said top and middle walls of said body include five sides, two of said sides being parallel to each other and perpendicular to an adjacent side, the remaining two sides converging to a point, the multisided holes in said slide being of substantially the same configuration as the holes in said top and middle walls, the converging sides on the holes in said slide being directed in a direction opposite to the direction of the converging sides on the holes in said top and middle walls of said body.

3. In a device as set forth in claim 1 including a track on the undersurface of said top wall and said slide top wall being reciprocally disposed in said track.

4. In a device as set forth in claim 3 including a second track on said middle wall, said slide bottom wall being reciprocally disposed in said second track, said tracks being flanges integral with the top and middle walls and positioned in horizontal parallel planes.

5. In a device as set forth in claim 1 wherein said walls of the S-shaped body and slide are each provided with a plurality of multi-sided holes so that a plurality of tubular elements may be accommodated on said body.

References Cited in the file of this patent UNITED STATES PATENTS 2,287,731 Franks June 23, 1942 2,360,978 Putter Oct. 24, 1944 FOREIGN PATENTS 136,106 Germany Feb. 2, 1902 833,867 Germany Mar. 13, 1952

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2287731 *Oct 20, 1941Jun 23, 1942Franks Charles MCombined bottle lifter and carrier
US2360978 *Oct 17, 1941Oct 24, 1944Schering CorpRack for test tubes and the like
*DE136106C Title not available
DE833867C *Jun 20, 1950Mar 13, 1952Johann MichelStaender fuer Reagenzglaeser, Pipetten, Werkzeuge od. dgl.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3184071 *Dec 12, 1962May 18, 1965Eastman Kodak CoPlastic case for containers
US3375934 *Oct 13, 1965Apr 2, 1968Smith Kline French LabDisposable test tube rack
US3604566 *May 1, 1969Sep 14, 1971Smith David HTest tube holder
US4273416 *Jan 2, 1979Jun 16, 1981Blum Alvin SIndicating test tube rack
US4748125 *Sep 25, 1986May 31, 1988Pizzolante John MDisposable adhesive test tube rack
US5037544 *Nov 29, 1990Aug 6, 1991Snyder Thomas AKeyed column chromatography apparatus
US5080232 *May 17, 1991Jan 14, 1992Nalge CompanyTest tube rack and retainer
US5409667 *Apr 29, 1994Apr 25, 1995Elson; Edward E.Tube rack
US6123205 *Nov 26, 1997Sep 26, 2000Bayer CorporationSample tube rack
US6132684 *Oct 31, 1997Oct 17, 2000Becton Dickinson And CompanySample tube holder
US7132082May 16, 2003Nov 7, 2006Gen-Probe IncorporatedEspecially useful with sample tubes having penetrable caps.
US7276208May 16, 2003Oct 2, 2007Gen-Probe IncorporatedFor use in holding and containing a plurality of sample tubes for access by a robotic pipetting device
US7282182Jul 18, 2002Oct 16, 2007Gen-Probe IncorporatedSample carrier
US7587952Oct 10, 2007Sep 15, 2009Gen-Probe IncorporatedAutomated sampling system
US7611675Oct 1, 2007Nov 3, 2009Gen-Probe IncorporatedSample carrier having finger springs for holding sample tubes
US7815858Oct 10, 2007Oct 19, 2010Gen-Probe IncorporatedBiological sample carrier for sample tubes having penetrable caps in their allotted positions during automated sampling procedures; a drip shield protecting against cross-contamination and limiting vertical movement of sample carriers positioned on conveyor during an automated sample transfer; robotics
US7867777Oct 30, 2006Jan 11, 2011Gen-Probe Incorporatedfor obtaining a test sample from a sample tube which is immobilized in a sample carrier; useful with sample tubes having penetrable caps; provides adequate retaining force for maintaining sample tubes in carrier during sampling while minimizing the force required to insert sample tubes into carrier
US7910067Apr 18, 2006Mar 22, 2011Gen-Probe IncorporatedSample tube holder
US8142740 *Nov 12, 2009Mar 27, 2012Qiagen Gaithersburg, Inc.Sample rack system
US8320062Apr 6, 2011Nov 27, 2012Persson J RogerLockable eyepiece holder
US8591838Dec 8, 2008Nov 26, 2013Ge Healthcare Bio-Sciences AbCassette for test tubes
US8703492Oct 9, 2009Apr 22, 2014Qiagen Gaithersburg, Inc.Open platform hybrid manual-automated sample processing system
DE29801889U1 *Feb 5, 1998Apr 30, 1998Neolab Migge Laborbedarf VertrGestelle für Röhrchen und Reagenzgläser
DE102012103896A1 *May 3, 2012Nov 7, 2013Schott AgHaltestruktur zum gleichzeitigen Halten einer Mehrzahl von medizinischen oder pharmazeutischen Behältern sowie Transport- oder Verpackungsbehälter mit Selbiger
DE102012103898A1 *May 3, 2012Nov 7, 2013Schott AgHaltestruktur zum gleichzeitigen Halten einer Mehrzahl von medizinischen oder pharmazeutischen Behältern sowie Transport- oder Verpackungsbehälter mit Selbiger
EP0022988A1 *Jul 10, 1980Jan 28, 1981Hans WiedemannHolder for tubular vessels
EP2219787A1 *Dec 8, 2008Aug 25, 2010GE Healthcare Bio-Sciences ABCassette for test tubes
WO1989012491A1 *Jun 13, 1989Dec 28, 1989Thomas A SnyderKeyed column chromatography apparatus
Classifications
U.S. Classification211/74, D24/229
International ClassificationB01L9/06, B01L9/00
Cooperative ClassificationB01L9/06
European ClassificationB01L9/06