Patented June 23, 1925.
JOHN A. NEWBERRY, OF ALLEGAN, MICHIGAN.
COFFEE URN.
Specification forming part of Letters Patent No. 1,543,340, dated June 23, 1925.
Application filed December 31, 1924, Serial No. 759,028.
To all whom it may concern:
Be it known that I, JOHN A. NEWBERRY, a citizen of
the United States, residing at Allegan, county of Allegan, State of Michigan, have invented certain new
and useful Improvements in Coffee Urns, of which the following is a specification.
This
invention relates to improvements in coffee urns.
In making coffee in coffee urns such as
are used in restaurants and the like a sack for the coffee is supported in the upper part of the urn and
the water is poured through the coffee. It is inteded that after the water has been drained throught the
coffee the sack shall be removed promptly so that the grounds shall not be subjected to the steam which
develops an unpleasant taste and objectionable color. It frequently happens, however, that the coffee
grounds are left within the urn with th undesirable results indicated.
The main object of
this invention is to provide an improved coffee urn by the aid of which a superior quality of coffee may
be produced.
A further object is to provide an improved coffee urn in which lack of attention
of the operator does not materially affect the quality of the coffee.
Objects pertaining
to details and economies of my invention will definitely appear from the detailed description to follow.
I accomplish the objects of my invention by the devices and means described in the following
specification. The invention is clearly defined and pointed out in the claims.
A structure
embodying the features of my invention is clearly illustrated in the accompanying drawing forming a part of
this application in which:
Fig. I is a side view of a coffee urn embodying the features of
my invention.
Fig. II is a plan view of a removable receptacle constituting a part of my
improved coffee urn, the coffee sack and filtering pad and screen being omitted.
Fig. III is
a vertical section on a line corresponding to line 3--3 of Fig. II.
In the drawing the
sectional view is taken looking in the direction of the little arrows at the end of the section line and
similar numerals of reference indicate similar parts in all of the views.
Referring to the
drawing, 1 represents the body portion of my improved coffee urn. The details of this and of the heating
burner therefor are not illustrated as they form no part of this invention.
I provide cylindrical
receptacle 2 having a funnel shaped bottom 3, the receptacle being adapted to constitute a cover for the urn
and when arranged theron the funnel shaped bottom depends centrally into the urn as illustrated by the dotted
lines in Fig. I.
The receptacle is provided with internal rests 4 for the supporting ring 5 of
the coffee sack 6. I also preferably provide a filtering pad supporting member 7 which is conformed to depend
into the funnel shaped bottom but is supported out of contact with the walls therof. The filtering pad 8 is
arranged in this support so that water flowing or draining through the coffee sack is filtered by this pad.
The water seal receptacle 9 is mounted upon the receptacle to embrace the discharge tap 10 of
the bottom, a plurality of spring fingers 11 being provided to engage the outwardly projecting rim 12 of the
receptacle. The cover 13 is adapted as a cover both for the receptacle 2 and the urn proper, it preferably
being the usual cover provided for the urn.
With the parts thus arranged the coffee, powered or
finely ground, is placed in the sack 6 and the desired amount of hot water is poured therethrough, the water
being filtered through the pad 8. The seal receptacle or cup 9 being filled with liquid forms a seal for the
receptacle so that the steam cannot enter the receptacle or come into contact with the grounds in the sack 6.
As heretofore stated, careless operators frequently leave the coffee sack within the urn so
that it is subjected to the steam which causes all the deleterious properties, such as caffeine, to become
extracted therefrom and, further, the sack being improperly cleaned or sterilized soon imparts to the coffee
an objectionable flavor.
Further, the continued subjecting of the coffee and its container to
the action of the steam results in an objectionable color.
In my improved coffee urn access of
the steam to the coffee grounds is entirely cut off and the receptacle may be left in position on the urn as
long as desired without deleterious results. The cover 13 is adapted either as a cover for the receptacle or
for the urn when the receptacle is removed.(more information provided in the patent documentation)
In witness whereof, I have hereunto set my hand.JOHN A. NEWBERRY [L.S.]
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