U.S. patent number 3,760,972 [Application Number 05/206,752] was granted by the patent office on 1973-09-25 for carafe.
This patent grant is currently assigned to Knight Engineering & Molding Co.. Invention is credited to Robert A. McKirnan.
United States Patent |
3,760,972 |
McKirnan |
September 25, 1973 |
CARAFE
Abstract
A carafe with a snap-in insulating liner and a removable domed
cover. The carafe is nestable with and without the liner; the
liners are nestable; a spout is carried entirely by the cover and
includes a captive door openable in response to pressure on the
cover.
Inventors: |
McKirnan; Robert A. (Winnetka,
IL) |
Assignee: |
Knight Engineering & Molding
Co. (Arlington Heights, IL)
|
Family
ID: |
22767791 |
Appl.
No.: |
05/206,752 |
Filed: |
December 10, 1971 |
Current U.S.
Class: |
220/592.16;
220/23.87; 220/592.2; D7/300.1; 206/515; 220/281; 220/835; D7/321;
206/520; 220/254.5 |
Current CPC
Class: |
A47G
19/12 (20130101) |
Current International
Class: |
A47G
19/00 (20060101); A47G 19/12 (20060101); B65d
025/18 () |
Field of
Search: |
;220/9R,15,17,63,97C,36
;150/5 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hall; George T.
Claims
The embodiments of the invention in which an exclusive property or
privilege is claimed are defined as follows:
1. In a carafe, an outer shell having a closed end and a larger
open end, a circumferential wall surrounding said open end, an
annular remainders joining said circumferential wall to the
remainder of said outer shell, an insulating liner shell for said
first shell, said liner shell having a closed end and a larger open
end, a circumferential wall surrounding said open end and an
annular wall joining said circumferential wall to the remainder of
said liner shell, said liner shell being manually engageable in
water tight relationship with said outer shell, said
circumferential and annular walls of said liner shell being formed
and dimensioned for engagement within and in water tight contact
with said circumferential and annular walls of said outer shell,
said remainders. of said shells having different diameters whereby
an insulating air space is created between said remainder, a
plurality of circumferentially spaced, longitudinally disposed,
radially directed ribs positioned beneath and extending a limited
distance downwardly from said annular wall of said outer shell and
formed and adapted for reception within the diameter of said
circumferential wall of said outer shell whereby said outer shells
are stackable one within the other, the ribs of one of said outer
shells being received within the circumferential wall of the next
lower outer shell and resting upon the annular wall of next lower
outer shell.
2. In a carafe, an outer shell having a closed end and a larger
open end, a circumferential wall surrounding said open end, an
annular wall joining said circumferential wall to the remainder of
said outer shell, an insulating liner shell for said first shell,
said liner shell having a closed end and a larger open end, a
circumferential wall surrounding said open end and an annular wall
joining said circumferential wall to the remainder of said liner
shell, said liner shell being manually engageable in water tight
relationship with said outer shell, said circumferential and
annular walls of said liner shell being formed and dimensioned for
engagement within and in water tight contact with said
circumferential and annular walls of said outer shell, said
remainders of said shells having different diameters whereby an
insulating air space is created between said remainders, rib
elements formed on said liner shell and positioned to contact
opposed inner lower surfaces of said outer shell when said outer
and liner shells are in insulating relationship.
Description
SUMMARY OF THE INVENTION
This application relates to carafes and particularly to an
economically producable carafe disposable after one use by a
patient in a hospital, for example.
One purpose of the invention is to provide a carafe of maximum
economy in manufacture and use and of maximum attractiveness in
appearance.
Another purpose of the invention is to provide a carafe, the basic
container or outer shell of which is nestable.
Another purpose is to provide a carafe having a liner which may be
snapped into and out of position, rendering the carafe selectably
insulated.
Another purpose is to provide an insulated carafe nestable with
insulated and noninsulated carafes.
Another purpose is to provide an insulating liner for a carafe, the
liners being individually nestable with like liners in storage.
Another purpose is to provide an insulated carafe having a
removable liner shell formed and adapted for nesting of the carafe,
nesting of the liner shell and nesting of the carafe-liner
assemblies.
Another purpose is to provide a carafe and cover therefor, the
cover incorporating a spout and a captive door for said spout
closable against said cover.
Another purpose is to provide a carafe having a spout and a door
for said spout, the door being openable in response to pressure on
the cover.
Other purposes may appear from time to time during the course of
the specification and claims.
BRIEF DESCRIPTION OF THE DISCLOSURE
The invention is illustrated more or less diagrammatically in the
accompanying drawings wherein:
FIG. 1 is a perspective view;
FIG. 2 is a side elevation;
FIG. 3 is a front view with parts broken away and parts in cross
section;
FIG. 4 is a detail view;
FIG. 5 is a detail view on the line 5--5 of FIG. 4;
FIG. 6 is a side view illustrating insulated carafes in nested
relationship;
FIG. 7 is a view taken on the line 7--7 of FIG. 6;
FIG. 8 is a side view of noninsulated carafes in nesting
relationship;
FIG. 9 is a view taken on the line 9--9 of FIG. 8;
FIG. 10 is a side view of an insulating liner;
FIG. 11 is a partial view taken on a line 11--11 of FIG. 10;
FIG. 12 is a bottom view of the structure illustrated in FIG. 10;
and
FIG. 13 is a side elevation illustrating the liners in nested
relationship.
Like parts are indicated by like numerals throughout the
specification and drawings.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, and particularly to FIG. 1, the
numeral 1 generally indicates the external shell or main container
portion of the carafe of the invention. The upper open end of the
shell 1 has an enlarged circumferential rim wall 2 engaged by a
corresponding circumferential rim wall 3 of a domed cover 4. As may
be best seen at 5 in FIG. 3, the parallel, circumferential walls 2,
3 include outwardly and inwardly directed beads or ridges,
respectively, the ridges overlapping to insure a watertight snap-on
engagement of cover 4 on carafe shell 1.
As illustrated in FIGS. 2-5, the cover 4 includes a major domed
portion 6 rising in a continuous curve from the upper edge of the
wall 3. The surface 6 is broken by an integral spout conformation 7
positioned radially in and extending upwardly above the portion 6.
Formed integrally with the upper flat surface of the spout 7 is a
captive door element 8, the material between the door element 8 and
the upper flat surface of spout 7 being relatively thin to permit
hinging, as may be best seen for example in FIG. 4. The spout 7 has
a forward downwardly, outwardly inclined window or outlet portion 9
with ice cube-retaining, stream-separating, spout-strengthening
integral bars 10 spaced therein. The side walls of the spout 9 have
inwardly directed integral buttons 11 adjacent the wall 3 of cover
4 and the door 8 has a forwardly directed end portion 12 forming
with the main portion of door 8 a latching angle 13 positioned to
engage the buttons 11, as may be best seen for example in FIG. 5.
The door 8 has a central, outwardly curved segment 14 which extends
into the forwardly extending portion 12 to strengthen the door.
The otherwise frusto-conical, circumferential main wall of the
outershell 1 has its opposite sides inwardly concave or indented,
as indicated at 15,16, for ease in handling. A plurality of
vertically disposed, circumferentially spaced ribs 17 extend from
beneath the ledge 18 formed between the wall 2 and an upper
circumferential shell portion 19 of the shell 1. The ribs 17 have
an outer edge 17a extending in a plane parallel to that of the
walls 2,3. As may be best seen in FIG. 9, the shells 1 are easily
nested or stacked for storage, the lower edges 17b of the ribs 17
seating on ledge 18 and the outer edges 17a of ribs 17 being
received within the wall 2, as indicated generally at 20 in FIG. 8,
to preclude sticking of individual shells 1 within identical shells
1 when stacked or nested.
Illustrated in FIG. 10 is an insulating liner generally indicated
at 25. The liner 25 has an upper enlarged, circumferential section
at its upper open end, the enlarged section being defined by a
circumferential wall 26 and an annular wall 27, the height of wall
26 being less than that of wall 2. Indentations or concave wall
portions 28,29 correspond generally in size and positioning to the
segments 15,16 of the external containers 1. The frusto-conical
main wall 30 of liner 25 is inwardly offset as indicated at 31 in
its convex or nonconcave portions to create a reduced lower segment
32. A set of four longitudinal ribs 33 extend radially from the
convex portions of reduced end segment 32 and extend linearly from
the inset 31 to the lower edge of segment 32. It will be observed
that the ribs 33 are positioned adjacent the juncture of the
concaves 28,29 with the remaining convex wall portions of reduced
segment 32.
The use and operation of the invention are as follows:
The cap 4 is easily manually pressed into and removed from
watertight engagement with the external container 1, the ridges on
walls 2 and 3 interlocking. Since the plastic material of the cap 4
and the plastic material of the container 1 differ, the door 8 of
spout 7 is designed for engagement only with the cover and not with
the container. Thus varying shrinkage factors of the cover and
container have no affect on the performance of the door 8.
The door 8 closes and lockingly engages with the integral lugs 11.
Alternate means of opening the door 8 are provided in that the
operator may lift upwardly on the extension 12, or may, as
illustrated in FIG. 2, press downwardly on the dome 6 of cover 4 to
snap the door 8 open. The dome 6 has the further advantage of
precluding the gathering of dust and dirt, as well as germs. It
will be understood that the carafe of the invention finds its
greatest utilization in hospitals, being provided for one-patient
use and subsequent discarding. Hence the dome 6 avoids entrapment
or buildup of dust, dirt and germs.
While the spout 7 and door 8 are located in the cover, they are
positioned for escape of water from the carafe directly into a
drinking glass or other container and water is not required to flow
over the carafe or cover itself. Ribs or bars 10 serve the triple
function of strengthening the spout, retaining ice cubes and
dividing the flow of fluid from the carafe of the invention and
thus limiting the tendency to splash or overfill a drinking glass
for example.
As may be best seen in FIG. 3, the liner 25 is simply manually
snapped in place to render the external shell 1 an insulated
carafe, the walls 26,27 of inner liner or inner shell 25 being
formed and adapted for watertight contact engagement with the walls
2,18 of external shell 1. It will be understood that the dimensions
of the walls 26 and 2 are such as to provide a watertight
engagement and while the inner shell 25 may be manually snapped
into place, rather than glued, heat-sealed or otherwise secured,
and while the inner shell 25 may be manually removed, substantial
manual effort is required for such removal and the liner 25 will
remain solidly in place as long as desired.
The frusto-conical walls of the shells 1,25 are dimensioned to
create an insulating air space throughout their extension,
including their concave portions 15,16 and 28,29, as can be clearly
seen in FIG. 3. The lower ends of ribs 33 of liner shell 25 engage
the opposed lower inner corner portions of the shell 1, as may best
be seen in FIG. 7. Thus the engagement of wall 26 with wall 2 and
of ribs 33 with the shell 1 preclude any rattling or looseness of
the liners while maintaining a maximum insulating air space
therebetween.
The shells 1 may be nested or stacked in storage as illustrated in
FIG. 8. While two such shells are illustrated, it will be
understood that the number may vary as desired. In each case the
ribs 17 carry one shell 1 within the next lower adjacent shell and
preclude sticking therebetween.
Similarly, the liner shells 25 themselves may be stacked or nested
in storage as illustrated in FIG. 13, the inwardly offset portion
31 of the wall thereof serving to support the bottom wall of the
next above liner 25.
While noninsulated carafe shells 1 may be stacked or nested and the
liner shells 25 may be stacked or nested, the insulated carafes of
FIG. 3 may also be stacked or nested, as may be best seen in FIG.
6. In this event, the bottom wall of each shell 1 is supported on
the inward offset 31 of the insulated liner 25 in the next lower
insulated carafe. It will be understood that noninsulated carafes
may be nested or stacked within insulated carafes as shown in FIG.
6 and insulated carafes may be stacked or nested in noninsulated
carafes, as shown in FIG. 8.
* * * * *