An Improved Valve Stopper for Sterilizing Vessels, Bottles, and the like.
Year: 1899

page_text: PROVISIONAL SPECIFICATION,
An Improved Valve Stopper for Sterilizing Vessels, Bottles,
and the like.
I, Dr. EUGÈNE LUST, of 27, Rue de la Limite, Brussels, Belgium, Physician,
do hereby declare the nature of this invention to be as follows:-
My invention relates to a valve-lock for vessels or bottles containing liquids
to be secured against contact with the atmospheric air, and especially for steriliz-
ing vessels in order to conserve and keep intact their contents after having heen.
sterilized by heat.
The object of my invention is to provide a valve-lock which will be closed by
the slightest increase of the atmospheric pressure above the pressure within the
vessel, and cannot be accidentally unlocked by shocks or troubles arising in
shipping the vessels. I attain this object by conveniently placing an elastic valve-
lock plate within the body of a stopper to be put into the mouth of the vessel
or bottle and provided with a central longitudinal channel for the escape of
vapours or gases during the sterilizing process. In order to receive the valve-
plate, the stopper is recessed at its upper end, and elastic flaps are provided to
partially overlap the valve-plate after having been inserted into the recess, and
to keep its edge in contact with the bottom of the recess, whilst owing to the
elasticity of the flaps the valve-plate can be easily inserted into and removed
from the recess by bending the flaps aside.
Thus the valve-plate being always kept in contact with the adjacent tighten-
ing surface of the stopper, even at the slightest increase of the atmospheric pres-
sure above the pressure within the vessel (say immediately after the sterilizing
process has been finished) the valve-plate is at once pressed against its seat, no
air at all being allowed to enter the vessel, as would be the case if the edge of
the valve-plate should not be kept in contact with its seat. On the other hand,
the plate is perfectly secured against being accidentally unlocked by shocks owing
to its being embedded in the stopper-body and held at its place by the over-
lapping flaps. Under these circumstances the locking condition of the valve-
plate will be fully maintained, no matter whether the vessels are shipped long
distances and subjected to the accidentalities connected therewith, or stored for
any time.
The upper portion of the stopper down to the seat of the valve-plate, including
the flaps, may be made integral with the main body of the stopper, or it may he
made to form a separate piece to be connected therewith by any convenient means.
Dated this 14th dox of Santambor 1800
H. GARDNER.
Patent Agent, 166, Fleet Street, London,
Agent for the said Dr. Eugène Lust.

page_text: An Improved Valve Stopper for Sterilizing Vessels, Bottles,
and the like.
I, Dr. EUGENE LUST, of 27, Rue de la Limite, Brussels, Belgium, Physician,
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement:-
My invention relates to a valve-lock for vessels or bottles containing liquids
to be secured against contact with the atmospheric air, and especially for steri-
lizing-vessels in order to conserve and keep intact their contents after having been
sterilized by heat.
The object of my invention is to provide a valve-lock which will be closed by
the slightest increase of the atmospheric pressure above the pressure within the
vessel and cannot be accidentally unlocked by shocks or trouble arising in shipping
the vessel. I attain this object by the means represented in the accompanying
drawing, in which
Fig. 1 is a top view of my invention,
Fig. 2 a longitudinal sectional view thereof on the line of Fig. 1, and
Fig. 3a sectional view showing the invention applied to a bottle.
An elastic valve-lock plate is conveniently placed within the body of a
stopper to be put into the mouth of the vessel or bottle and provided with a
central longitudinal channel 6 for the escape of vapours or gases during the steri-
lizing process In order to receive the valve-plate the stopper a is provided
with a recess at its upper end, and elastic flaps e are provided to partially over-
lap the valve-plate after having been inserted into the recess, and to keep its
edge in contact with the bottom of the recess, whilst owing to the elasticity of
the flaps the valve-plate can be easily inserted into and removed from the recess
by bending, the flaps aside.
Thus the valve-plated being always kept in contact with the adjacent tighten-
ing surface of the stopper, even at the slightest increase of the atmospheric pres-
sure above the pressure within the vessel (say immediately after the sterilizing
process has been finished), the valve-plate is at once pressed against its seat, no
air at all being allowed to enter the vessel, as it would be the case if the edge of
the valve-plate should not be kept in contact with its seat. On the other hand,
the plate is perfectly secured against being accidentally unlocked by shocks owing
to its being embedded in the stopper body and held at its place by the over-
lapping flaps. Under these circumstances, the locking condition of the valve-
plate will be fully maintained, no matter whether the vessels are shipped long
distances and subjected to the accidentalities connected therewith, or stored for
any time.
The upper portion of the stopper down to the seat of the valve-plate, including
the flaps, may be made integral with the main body of the stopper, or it may
be made to form a separate piece to be connected therewith by any convenient
means.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
In a valve-lock for vessels or bottles containing liquids to be secured against
contact with the atmospheric air, and especially for sterilizing-vessels in order
to conserve and keep intact their contents after having been sterilized by heat,

page_text: the combination of a stopper (a) provided with a central longitudinal channel (b)
and with a recess (c) at its upper end, an elastic valve-plate () to fit in the
said recess, and elastic flaps (e) provided to partially overlap the valve-plate after
having been inserted into the recess and to keep its edge in contact with the
bottom of the said recess, substantially as and for the purposes described.
R. CORE GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Dr. E. Lust.
R. CORE GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Dr. E. Lust.