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Publication numberUS3375934 A
Publication typeGrant
Publication dateApr 2, 1968
Filing dateOct 13, 1965
Priority dateOct 13, 1965
Publication numberUS 3375934 A, US 3375934A, US-A-3375934, US3375934 A, US3375934A
InventorsBates Edward A
Original AssigneeSmith Kline French Lab
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Disposable test tube rack
US 3375934 A
Images(2)
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Description  (OCR text may contain errors)

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April 2, 1968 Filed Oct. 13, 1965 E. A. BATES DISPOSABLE TEST TUBE RACK 2 Sheets-Sheet I gg 84 F IG. 5.

s2 s2 (74 as so s 78 FIG. 6. 8

B2--IT FIG.8.

INVENTOR EDWARD A. BATES ATTORNEYS United States Patent 3,375,934 DISPOSABLE TEST TUBE RACK Edward A. Bates, Philadelphia, Pa., assignor to Smith Kline & French Laboratories, Philadelphia, Pa., a corporation of Pennsylvania Filed Oct. 13, 1965, Ser. No. 495,636 1 Claim. (Cl. 211-72) ABSTRACT OF THE DISCLOSURE A test tube rack has top, bottom and side panels with a panel intermediate the top and bottom panel, the panels being hinged to provide for the collapsing of the rack for shipment and storage. Aligned openings in the top and intermediate panels receive test tubes, the openings advantageously being bordered by tabs to provide for enlargement of the openings by a test tube of a diameter greater than that of the opening.

. only one particular size of test tube whereas a number of different sizes of test tubes may be employed simultaneously. This invention solves both of these problems by providing a test tube rack which is so inexpensive it can be disposed of after only one use and which is capable of securely holding a wide variety of different sizes of test tubes.

The test tube rack of the invention is further advantageous in that it is collapsible into a substantially fiat form for economic shipment and handling prior to use.

In addition the test tube rack of the invention is advantageous since it can readily be made of material which can be written on with ordinary writing implements such as a ballpoint pen or a lead pencil.

The test tube rack of the invention is formed of sheet material such as, for example, cardboard and fiberboard and the like. The various types of plastic sheeting available in the trade also are suitable. Preferably at least ten point board is employed. The rack has a base panel hingedly connected to side panels which are hingedly connected to a top panel in order that the rack can be collapsed into a substantially flat posture. An intermediate panel is hingedly connected to the side panels between the base and top panels. Where relatively short test tubes are employed the intermediate panel may be eliminated. The top panel and the intermediate panel are provided with openings in registry for the reception of test tubes. A plurality of tabs extend from each opening substantially in the plane of the panel containing the opening to provide for enlargement of the opening by a test tube of a diameter greater than the opening.

The invention and its objects will be clarified by the following description read in conjunction with the drawings in which:

FIGURE 1 is a front elevation of a test tube rack in accordance with the invention in the collapsed condition;

FIGURE 2 is a front elevation of the test tube rack of FIGURE 1 in a partially erected condition;

FIGURE 3 is a front elevation of the test tube rack of FIGURE 1 in a fully erected position and supporting test tubes of different sizes;

3,375,934 Patented Apr. 2, 1968 FIGURE 4 is a horizontal section taken on the plane indicated by the line 44 in FIGURE 3 and partially broken away;

FIGURE 5 is a front elevation of an alternative embodiment of a test tube rack in accordance with the invention;

FIGURE 6 is a front elevation of the test tube rack of FIGURE 5 showing it in a partially erected condition;

FIGURE 7 is a front elevation of the test tube rack of FIGURE 5 showing the rack in a fully elevated condition and supporting test tubes of various sizes; and

FIGURE 8 is a horizontal section taken on the plane indicated by the line 88 in FIGURE 7 and partially broken away.

Referring first to FIGURES 1 through 3, the test tube rack 2 in accordance with the invention and formed from sheet material has a base panel 4. A side panel 6 is hingedly connected along a hinge line indicated at 8 to a flange portion 10 which is secured to base panel 4 by staples 12. The hinge line 8 and subsequently referred to hinge lines can be formed by any suitable means available in the art such as, for example, scoring by crease scoring or cut scoring.

Similarly, a side panel 14 is hingedly connected along a fold line 16 to a flange portion 18 which is secured to base panel 4 by staples 12.

A top panel 22 is hingedly connected to side panel 6 along a fold line indicated at 24 and hingedly connected to side panel 14 along a fold line indicated at 26. Top panel 22 is provided with a plurality of test tube receiving openings 28 of a diameter substantially equal to the diameter of the smallest test tube to be employed to provide for a snug engagement of said test tube. A plurality of slits 30 extend radially from each opening 28 to form a plurality of tabs 32 surrounding the openings.

. An intermediate panel 36 is connected along a hinge line indicated at 38 to a side panel 40 which is secured to side panel 6 by staples 12. Panel 36 is hingedly connected along a hinge line indicated at 42 to a side panel 44 which is secured to side panel 14 by staples 12. Intermediate panel 36 is provided with test tube receiving openings 48 which are in registry with openings 28 in top panel 22 and of the same diameter. Radial slits 50 extending from each opening 48 form a plurality of tabs 52 surrounding each opening 48.

Operation Assuming the test tube rack 2 to be in the collapsed shipping and storing position shown in FIGURE 1, the rack is placed in use by elevating side panel 14 to place the rack in approximately the position shown in FIG- URE 2. When it is desired to insert a test. tube, for example, test tube 56 which is the smallest test tube contemplated for use with the rack the sides 14 and 6 are squared up and test tube 56 is inserted through openings 28 and 48 until it rests on base panel 4. While the rack can be erected by carrying side panels 6 and 14 beyond the perpendicular so as to set the sheet material to cause the side panels to remain in a substantially vertical position, it is somewhat advantageous to leave a tendency for the side panels to return to the position shown in FIGURE 2 as this results in panels 22 and 36 exerting opposite forces on a test tube held in the rack which provides for a still stronger holding grip on the test tube by the rack.

When a test tube 58 of a diameter greater than the diameter of openings 28 and 48 is employed, it is centered over the said openings and forced downwardly causing tabs 32 and 52 to move downwardly but to remain in tight engagement with test tube 58. Again, if a test tube 60 of a still greater diameter is employed tabs 32 and 52 will be pivoted still further downwardly to provide for the entrance and secure holding of test tube 60.

As against conventional test tube racks, the test tube rack 2 can be written on with conventional writing instruments as indicated by the letters A, B, and C shown on top panel 22 in FIGURE 4.

When all of the test tubes have been withdrawn from the rack 2, it can be thrown away if the rack has been contaminated in any way as, for example, when the test tubes contain viruses. Of course rack 2 can be reused many times when it is not contaminated in some manner making it unfit for further use.

It is to be noted that a marked advantage of the rack 2 is that it will not scratch test tubes as is the case with metal racks which are conventionally employed when sterilization of the racks after use is necessary.

Alternative embodiments Referring now to FIGURES 5, 6 and 7 an alternative test tube rack 72 in accordance with the invention is provided with a base panel 74. A side panel 76 is hingedly connected along a hinge line indicated at 78 to a flange portion 80 which is secured to base panel 74 by staples 82. A side panel 84 is hingedly connected along a hinge line indicated at 86 to a flange portion 88 which is secured to base panel 74 by staples 82.

A top panel 92 is hingedly connected along a hinge line indicated at 94 to side panel 76 and hingedly connected along a hinge line indicated at 96 to side panel 84. Top panel 92 is provided with openings 98 of a diameter to receive the smallest diameter test tubes to be employed. Radial slits 100 extend outwardly from each opening 98 to form a plurality of tabs 102 surrounding openings.

Operation The operation of test tube rack 72 will obviously be essentially the same as that of test tube rack 2 and hence need not be detailed. Sufiice it to say, rack 72 is particularly suitable for use with test tubes such as test tubes 106, 108 and 110 which are relatively short test tubes. It also should be noted that with the test tube rack 72 it is desirable to erect the side panels 76 and 84 upwardly and beyond the vertical in order that they will tend to remain substantially vertical after erecting.

It will be understood that the above-described embodiments of the invention are simply by way of illustration and are not intended to be limited.

What is claimed is:

1. A test tube rack formed from sheet material comprising a base panel, a pair of side panels, a flange hingedly connected to each side panel and secured to the base panel, a top panel hingedly secured to the side panels, said top panel having openings for the reception of test tubes and a plurality of tabs formed in the top panel and extending from each opening substantially in the plane of the top panel to provide for enlargement of the opening by a test tube of a diameter greater than that of the opening, an intermediate panel between the base and top panels, said intermediate panel having openings in registry with the openings in the top panel and a plurality of tabs formed in the intermediate panel and extending outwardly from each opening substantially in the plane of the intermediate panel to provide for enlargement of the opening by a test tube of a diameter greater than that of the opening, and a second pair of side panels hingedly connected to the intermediate panel and secured to the first mentioned side panels which are connected to the top panel.

References Cited UNITED STATES PATENTS 1,956,115 4/1934 Brennan 211-72 XR 2,338,567 1/1944 Barron 248-174 2,902,170 9/ 1959 Miller 211-72 808,962 1/1906 Willis 211-74 2,551,090 5/1951 Bergstein 229-41 2,833,458 5/ 1958 Toensmeier 229-41 2,917,183 12/1959 Seelye 211-74 2,979,210 4/ 1961 Patterson 211-74 3,005,584 10/1961 Coe 229-41 3,115,247 12/1963 Hauser 206- FOREIGN PATENTS 178,624 3/ 1962 Sweden.

ROY D. FRAZIER, Primary Examiner. CHANCELLOR E. HARRIS, Examiner.

A. F. FRANKEL, Assistant Examiner.

Patent Citations
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US808962 *Mar 10, 1904Jan 2, 1906Henry M WillisDisplay rack or stand.
US1956115 *Nov 23, 1931Apr 24, 1934Bakeries Service CorpDisplay stand
US2338567 *Nov 29, 1941Jan 4, 1944Abraham BarronCollapsible merchandise display stand
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US2833458 *Sep 30, 1957May 6, 1958New Haven Board & Carton CompaFolding trays
US2902170 *Sep 29, 1955Sep 1, 1959Daystrom IncTest tube rack
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US3005584 *Feb 13, 1961Oct 24, 1961Kvp Sutherland Paper CoCarrying tray
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3918920 *Jan 7, 1974Nov 11, 1975Beckman Instruments IncHolder for sample containers of different sizes
US4552271 *Mar 27, 1984Nov 12, 1985Kranz Kermit WCollapsible container construction
US4748125 *Sep 25, 1986May 31, 1988Pizzolante John MDisposable adhesive test tube rack
US4787744 *Jan 14, 1986Nov 29, 1988Behringwerke AntiengesellschartCell arrangement and cell holder for receiving the cell arrangement in a single orientation
US5080232 *May 17, 1991Jan 14, 1992Nalge CompanyTest tube rack and retainer
US5133939 *Mar 21, 1991Jul 28, 1992Barnstead Thermolyne CorporationTest tube holder and tray assembly
US5137693 *Jul 30, 1990Aug 11, 1992Miles Inc.Allows easy insertion and removal; relative pivoting and tilting; interchangeable adaptor linkage accomodates variety of sizes
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US5409667 *Apr 29, 1994Apr 25, 1995Elson; Edward E.Tube rack
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US5882603 *Oct 15, 1997Mar 16, 1999Point Plastics IncorporatedSupport rack for pipette tips
US6533133 *May 18, 2001Mar 18, 2003Jun-Tai LiuTest tube rack with inserting structure
US6932223 *Feb 5, 2003Aug 23, 2005Sung Min LeeCombination suspension rack
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
US8703492Oct 9, 2009Apr 22, 2014Qiagen Gaithersburg, Inc.Open platform hybrid manual-automated sample processing system
US20120273446 *Oct 29, 2010Nov 1, 2012Paul MooreDental bur storage device
DE202007006719U1May 10, 2007Oct 23, 2008Ass Elektronik GmbhVorrichtung zum Einsetzen von Behältnissen, insbesondere Reagenzgläser, in Behältnisse, insbesondere Reagenzglasträger
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Classifications
U.S. Classification211/72, 356/244, 211/74, 356/246
International ClassificationB01L9/00, B01L9/06, B65D5/50
Cooperative ClassificationB65D2571/00925, B65D5/5038, B01L9/06
European ClassificationB65D5/50D4B, B01L9/06
Legal Events
DateCodeEventDescription
Jun 21, 1982ASAssignment
Owner name: SMITHKLINE BECKMAN CORPORATION
Free format text: CHANGE OF NAME;ASSIGNOR:SMITHKLINE CORPORATION;REEL/FRAME:004080/0769
Effective date: 19820304
Owner name: SMITHKLINE BECKMAN CORPORATION, PENNSYLVANIA