U.S. patent number 3,643,812 [Application Number 05/045,725] was granted by the patent office on 1972-02-22 for tube storage rack.
This patent grant is currently assigned to Owens-Illinois, Inc.. Invention is credited to Robert J. Mander, Duane E. Ramm, Robert J. Simms.
United States Patent |
3,643,812 |
Mander , et al. |
February 22, 1972 |
TUBE STORAGE RACK
Abstract
A storage rack for culture tubes or similar tubular articles is
vacuum-formed from a plastic material, such as polypropylene and
comprises two separably connected elements, one being a boxlike
member with upstanding peripheral walls and a floor having a
plurality of wells in which to receive the lower end of culture
tubes or such articles and restrain them against lateral
displacement and which also are provided with bottom drain openings
for discharge of condensation. The other separably connected
element which is in the form of a cover, or toppiece, separably
attachable to the upper margin of the upstanding peripheral walls,
has vertical, tube-receiving apertures with depending guide sleeves
which are coaxial with the wells and which aid in initial placement
of such tubes or articles in the rack.
Inventors: |
Mander; Robert J. (Mays
Landing, NJ), Ramm; Duane E. (Vineland, NJ), Simms;
Robert J. (Vineland, NJ) |
Assignee: |
Owens-Illinois, Inc.
(N/A)
|
Family
ID: |
21939523 |
Appl.
No.: |
05/045,725 |
Filed: |
June 12, 1970 |
Current U.S.
Class: |
211/74; 206/446;
206/563; 220/DIG.6; 220/519; 206/443; 206/558; 206/564;
220/512 |
Current CPC
Class: |
B65D
25/108 (20130101); B01L 9/06 (20130101); Y10S
220/06 (20130101) |
Current International
Class: |
B01L
9/00 (20060101); B01L 9/06 (20060101); B65D
25/10 (20060101); A47b 073/00 () |
Field of
Search: |
;211/72,74,73 ;248/152
;220/97F,21 ;206/65A,72 ;217/26.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Allen; Edward C.
Assistant Examiner: Frankel; Abraham
Claims
We claim:
1. A rack for storage of an array of axially elongated articles in
upstanding relationship comprising:
a horizontally disposed wall,
a sidewall extending vertically from and continuously marginally
encompassing said horizontally disposed wall and defining a boxlike
storage compartment therewithin for said articles, said sidewall
being provided with a rim portion in outwardly spaced relationship
with said horizontally disposed wall and extending around said
storage compartment,
said horizontally disposed wall forming the floor of said storage
compartment and defining an array of mutually interspaced pockets
recessed within and extending beneath said floor,
each of said pockets being noncircular in top contour and having
sidewalls tapering downwardly and inwardly and converging with a
bottom end portion defining a centrally located transverse drain
opening, said sidewall also providing a discontinuous peripheral
seat upon which to gravitationally rest a lower end portion of each
of said articles in elevated relationship above each said drain
opening and across which to accommodate continuous drainage flow
between said storage compartment and each said drain opening,
a cover spanning said storage compartment having a marginal edge
portion extending around and engaging said rim portion if said
sidewall in snap-fit removable relationship, said cover being
provided with an array of mutually interspaced transverse circular
openings vertically oriented in axial alignment with said pockets
and in which to accommodate and support said articles in upright
position within said pockets.
2. A rack as defined in claim 1, wherein each of said pockets is
provided with a generally rectangular top contour and wherein
sidewalls of each of said pockets define a generally rectangular
seat upon which to gravitationally rest a lower end portion of each
of said articles.
Description
An important objective of the present invention is the provision of
tube storage racks which are constructed and formed in such manner
that they may economically be discarded or disposed of after only a
single use.
Another objective of the invention is the provision of tube storage
racks formed from an inexpensive plastic material, which, along
with tubes supported therein, may be safely autoclaved or
sterilized, if required, without damaging affect or deformation of
the racks.
It is also an object of this invention to provide a disposable tube
storage rack of the foregoing type which is capable of
accommodating a relatively wide range of tube sizes, both as to
diameter and length.
A no less important objective of the present invention is to
provide a plastic tube storage rack which is capable of supporting
an array of tubes, such as culture tubes, in upright position
therein and, by means of having a floor portion formed with a
multiplicity of wells designed to accommodate the bottom end of the
tubes, to restrain the tubes against undesirable lateral bodily
displacement.
The specific nature of the present invention, as well as other
objects, advantages and features thereof, will become readily
apparent to those skilled in the art from the following detailed
description taken in conjunction with the annexed sheets of
drawings on which, by way of example only, the preferred
embodiments of the invention are illustrated, and wherein:
FIG. 1 is a perspective view of the tube rack with a substantial
portion of the cover element fragmentarily removed to more clearly
depict the cooperative arrangement of the bottom wells and the
tube-accommodating apertures in the cover element, or toppiece;
and
FIG. 2 is a partial top plan view of the rack with the cover
element or top piece removed and showing only a few of the tube
accommodating wells; and
FIG. 3 is an enlarged fragmentary, sectionalized elevational view
particularly showing the cooperative coaxial alignment of the
bottom wells and apertures in the cover element, as well as in
which the cover element and boxlike member are firmly yet separably
interconnected in snug snap-fit relationship.
As best illustrated in FIG. 1, the present invention generally
comprises two elements, viz: a generally rectangular boxlike member
10 and an apertured cover, or toppiece 11, which is dimensioned to
substantially enclose the top of member 10 and to be separably, yet
firmly secured to same.
The boxlike member 10 comprises a floor 12 and upstanding,
integral, side and end walls 13 and 14 respectively, the latter,
preferably tapering outwardly and upwardly (FIG. 3) and terminating
in a continuous external horizontal flange 15. Spaced slightly
below the flange 15 there is a hollow rib 16 projecting laterally
outward from walls 13 and 14 and running substantially parallel
with the flange 15, thus providing a continuous downwardly and
inwardly facing shoulder 17, or abutment, intended for separable
holding engagement with a portion of the cover element 11, as will
be explained presently. At intervals along the side and end walls
13 and 14, respectively, external recesses R, or indentations, are
provided which create convenient handles 18 which facilitate manual
transport of the rack. The floor 12 of the boxlike member 10 is
provided with a multiplicity of symmetrically arranged wells 19
which are individually designed to accommodate the closed bottom
end of a tube T, such as a culture tube or other like article. Each
such well 19 defines a noncircular peripheral configuration in top
plan and preferably, though not necessarily defines a square
configuration at the merger thereof with the floor 12. The
sidewalls 20 of each well taper downwardly and inwardly and
converge into a bottom 21 of relatively small area wherein a drain
opening 22 is formed to provide a means for draining or discharging
condensate formed, during autoclave cooling, on the interior rack
surfaces. Since, as contrasted with the circular periphery of the
tubes T, the walls 20 are noncircular in contour, it is evident
that the tubes T cannot form a continuous band of peripheral
contact with the walls 20 and thus cannot act as a valve and seal
the wells, but rather leave adequate clearance for passage and
drainage of the condensate.
The interchangeable cover element, or toppiece 11, is a generally
flat rectangular sheet of plastic material formed with an
upstanding, continuous, peripheral wall 23 of such external
dimensions that it fits snugly within the upper region of the walls
of the boxlike bottom 10. A hollow external rib 24 situated
substantially at the juncture of the cover 11 and the wall 23 is
shaped to nest in snap-fit engagement with the hollow rib 16 and
shoulder 17 portions of walls 13 and 14 of the boxlike member 10
and thus securely, yet separably interconnect the top-piece 11 and
boxlike member in assembled relationship. At the upper end of the
wall 23 is a continuous outwardly extending horizontal flange 25
which seats upon the flange 15 extending continuously along the
upper margin of the side and end walls 13 and 14 respectively. The
extreme outer margin of the flange 25 is turned downwardly and
thence outwardly to present a generally rounded surface for hand
contact. This cover element 11, or toppiece, is provided with a
plurality of vertical apertures 27, or openings, which correspond
in number to and are coaxially oriented with the aforementioned
wells 19. Each such aperture 27, or opening, is formed in a floor
28 at the bottom of a depending tube guide-sleeve 29 which is
formed integrally with the cover element. It is evident that glass
culture tubes T, or other like articles positioned in the aligned
apertures 27 and well 19, will be positively supported in an
axially upright position facilitating transportation or movement of
the rack and tubes as a unit from place to place quite safely and
without tube dislocation. Moreover, both the apertures 27 and wells
19 are, within reasonable limits, dimensioned to accommodate tubes
of varying diameter.
Preferably, the rack is vacuum-formed from polypropylene so that it
will withstand steam and heat during autoclaving without damaging
formation. Obviously, other materials may be employed, particularly
if autoclaving is not necessary.
* * * * *