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Jan- 7, 1947-
‘2,413,890
L. REICHOLD
SEAL BREAKER F01? COFFEE’ MAKERS
Filed March 24, 1944
t
/
INVENTOR.
- LUDWIG RE/cHoLD.
BY
MW
Patented Jan. 7, 1947
,
2,413,890
UNITED STATES PATENT OFFICE.
.
2,413,890
’
SEAL BREAKER FOR. COFFEE MAKERS
Ludwig Reichold, Winsted, Conn, assignor to The
Silex Company, Hartford, Conn., a corporation
‘of Connecticut
Application March 24, 1944, Serial No. 528,008
4 Claims. (Cl. 99-4292)
1
2
This invention relates to a seal breaker for
coffee makers and more particularly to a device
for lifting the upper bowl of a vacuum type coffee
the upper bowl ‘6 and a rear portion l6 extending
over the top of the handle l0.
maker so as to break a seal between said upper
ably constructed of an inverted U-shaped mem
ber having the upper portion thereof resting upon
As illustrated in Fig. 3, the said lever is prefer
bowl and the lower bowl to thereby facilitate the
the top of the projection l3, as at I1, and adapted
removal of said upper bowl from the lower bowl.
to pivot thereon so that the said projection will
It is well known that in coffee makers, particu
support the lever during its seal breaking opera
larly those of the vacuum type wherein a sealing
member is commonly used for permitting a vacu
tion.
'
This is accomplished by providing inwardly
um in the lower bowl, it is often very di?icult to 10
extruded bosses l8 which are pre-formed in the
detach the upper bowl after a coffee brewing
lever l4 and ?t loosely within the recesses 19, at
operation due to the fact that the vacuum in
opposite sides of the projection l3 to permit
the lower bowl has caused the sealing member
engagement with the top of the boss l3 as indi
to be drawn tightly into the mouth of the lower
cated at IT. The said bosses l8 serve merely to
bowl. This is particularly true since the said
upper bowl is not, after the brewing operation,
and cannot be ?rmly grasped with the hand to
break the seal between the upper and lower
bowls so as to permit removal of the upper bowl.
An object of this invention, therefore, is to
provide a simple and inexpensive means for ap
plying a lifting force upon the upper bowl to
cause breaking of the seal between it and the
retain the lever M in operating position upon
the projection l3 but no load is applied upon said
bosses in the operation of the lever. This elimi~
nates the use of a pivot pin or boss which must
necessarily be strong enough to support the load
applied upon the pivotal point and further serves
to reduce the cost of assembling said lever to
“the handle.
When the upper bowl 5 has been removed from
A further object of this invention is to provide 25 the lower‘ bowl, the lever l4 normally rests upon
the top of the handle as illustrated in Fig. 2.
a lever, in combination with the coffee maker
When the upper bowl is placed upon the lower
handle, which will afford a leverage for raising
bowl, the bottom of said upper bowl will engage
the upper bowl su?iciently to break the seal be
the end of the lever and move it into the posi
tween it and the lower bowl.
tion illustrated in Fig. 1.
Further objects and advantages of this inven
During the coffee brewing operation, a consid
tion will be more clearly understood from the
erable vacuum is created in the lower bowl. This
following description and from the accompany
tends to draw the upper bowl downwardly into
ing drawing in which:
the lower bowl and cause a tight seal to be formed
Fig. 1 is a side view, partly in central section,
between the upper bowl and the neck of the lower
of a coffee maker embodying my invention.
bowl, which seal must be broken before the upper
Fig. 2 is a side elevational view of the handle
bowl can be removed so that the coffee can be
with the ,seal breaking lever in its normal posi
poured from the lower bowl. As the upper bowl
tion upon the upper surface thereof.
is usually hot after a brewing operation, it cannot
Fig. 3 is an enlarged end view in central verti
40 be easily handled and this renders it very incon
cal section on line 3--3 of Fig. 2.
venient and difficult to break the seal so that the
As shown in the drawing, the numeral 5 de
lower bowl.
,
notes the lower bowl of a coffee maker, 6 the
upper bowl and ‘I a resilient collar or sealing
member ?tting between a depending portion 8
of the upper bowl and the neck 9 of the lower
bowl.
A handle I0 is secured to the lower bowl by
means of a band I I which extends around the
neck 9 and is attached to the handle with fas
50
tening members [2.
In the embodiment of my invention as illus
trated, the handle in is provided with a projec
tion i3 extending from the upper portion of the
handle and to which is pivotally mounted a lever
upper bowl may be lifted.
With my invention, the said seal may be
easily broken by simply forcing downwardly with
the thumb on the end l6 of the lever Hi while
holding the coffee maker by the handle Hi. This
applies a leverage to the end l5 of the lever
which will readily lift the upper bowl sui?ciently
to break the seal and thereby permit it to vbe
easily removed from the lower bowl.
I claim:
1. A coffee maker of the character described
comprising a lower bowl, an upper bowl mounted
on said lower bowl, a seal= between said upper
l4 having a forward portion l5 extending under 55 and lower bowls, a handle carried by the lower
2,413,890
3
bowl, a substantially horizontally positioned
lever pivotally mounted directly to said handle
4
lever underlying and contacting the lower over
lying portion of the upper bowl, and the outer
end of the lever terminating inwardly of the
and overlying the same with the inner end of
said lever underlying and contacting the lower
outer side of the upper portion of said handle,
overlying portion of the upper bowl, and the Cl said lever being of substantially inverted U-shape
outer end of the lever terminating inwardly of
in cross-section and the pivotal connection be
the outer side of the upper portion of said handle,
tween the handle and lever including inwardly
said lever being of substantially inverted U
directed bosses on side portions of the lever and
receiving depressions at opposite sides of the
shape in cross-section and the pivotal conncc~
' tion between the handle and lever including in" 10 handle for said bosses, said lever being so pro
\vardly directed bosses on side portions of the
portioned as to be overbalanced at its outer end
whereby the inner end thereof comes into con
lever and receiving depressions at opposite sides
tact with the upper bowl when the latter is low
of the handle for said bosses.
into position on the lower bowl.
2. A coffee maker of the character described
comprising a lower bowl, an upper bowl mounted
4. A coiTee maker of the character described
comprising a lower bowl, an upper bowl mounted
on said lower bowl, a seal between said upper
on said lower bowl, a seal between said upper and
and lower bowls, a handle carried by the lower
bowl, a substantially horizontally positioned
lower bowls, a handle carried by the lower bowl,
lever pivotally mounted directly to said handle
a substantially horizontally positioned lever piv
and overlying the same with the inner end of
otally mounted directly to said handle and over
lying the same with the inner end of said lever
underlying and contacting the lower overlying
portion of the upper bowl, and the outer end of
the lever terminating inwardly of the outer side
of the upper portion of said handle, said lever
be 1g of substantially inverted U~shape in cross
said lever underlying and contacting the lower
overlying portion of the upper ‘bowl, and the
outer end of the lever terminating inwardly oi‘
the outer side of the upper portion of said han
le, said lever being of substantially inverted U
shape in cross~section and the pivotal connec
tion between the handle and lever including a
rib of reduced cross-section rising from said
handle with depressions in opposite sides thereof
and inwardly directed bosses on side portions of
the lever pivotally supported in said depressions.
3. A coffee maker of the character described
comprising a lower bowl, an upper bowl mounted
on said lower bowl, a seal between said upper
and lower bowls, a handle carried by the lower '
bowl, a substantially horizontally positioned lever
pivotally mounted directly to said handle and
overlying the same with the inner end of said
'
.. and the pivotal connection between the
ole and lover including a rib of reduced cross
‘ion rising from said handle with depressions
opposite sides thereof and inwardly directed
.sosses on side portions of the lever pivotally sup
ported in said depressions, said lever being so
proportioned as to be overbalanced at its outer
end whereby the inner end thereof comes into
contact with the upper bowl when the latter is
lowered into position on the lower bowl.
LUDWIG REICl-IOLD.
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