close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2134910

код для вставки
NOV. 1, 1938.
w_ c. DVORAK
2,134,910
PASTE TUBE
Filed March ‘7, 1.953
'
2 Sheets-Sheet l
Inventor
Aiiorneq's
Nov. 1, 1938.
w. c. DVORAK
2,134,910 '
PASTE TUBE
Filed March '7, 1933
9
2 Sheets-Sheet 2
/0
Y
I
Inventor
Wencz'l C'Jvorwk
By
/4
Aiiorneys
2,134,910
Patented Nov. 1, 1938
UNITED STATES PATENT‘ OFFICE
2,134,910
PASTE TUBE
Wencil C. Dvorak, Dodge, Nebr. ‘
Application March 7, 1938, Serial No. 194,458
4 Claims. (Cl. 221-450)
This invention relates to ?exible paste tubes
manner forming a ?nger seat whereby at the
of the type usually employed for toothpaste,
recess !5 the wall of the tube may be pressed
shaving cream, salves, and the like, and an ob
ject of‘ the invention is to provide a paste tube
having improved closure means therefor.
In accordance with the present invention the
paste tube is provided with a valve for closing
the neck thereof and means operable in response
to pressure applied at a predetermined point on
10 the tube for moving the valve to an unseated
position to permit the, contents of the tube to
inwardly for the‘p‘urpose of bringing pressure
exude therefrom.
“
The invention together with its objects and
advantages will be best understood from a study
15 of the following description taken in connection
with the accompanying drawings wherein—
Figure l is a plan view of the tube embodying
the features of the present invention,
Figure 2 is a side elevational view thereof,
20
Figure 3 is an enlarged detail sectional view
taken substantially on the line 3—3 of Figure 2,
Figure 4 is a view somewhat similar to Figure
3, but showing the valve in closed position, the
valve being shown in open position in Figure 3,
Figure 5 is an enlarged fragmentary detail sec
26
tional view illustrating certain details hereinafter
more fully referred to,
Figure 6 is a perspective view of the valve core
and stem, and
30
Figure 7 is a detail sectional view taken sub
stantially on the line 'l—'l of Figure 2.
Referring to the drawings by reference nu
of the tube, in response to external pressure on
the tube, to exude therefrom.
At the inner end thereof the shoulder 1 is 10
provided with a cross brace l8 that at the end
thereof forming the inner end wall of‘ the recess
45 terminates short from the periphery of the
tube 5 so as to permit the tube to shift longitudi
nally slightly relative to the shoulder 'l as is
necessary incidental to the compressing of the
tube at the point I‘! thereon.
Also so as not to interfere with the ?exing in
wardly of the spring 12 brace I8 is provided with
an elongated slot l9.
20
It will thus be seen that normally under ac
tion of spring [2 valve member ID seats within
the seat 9 providing an efficient closure for the
tube serving to exclude dirt from the tube.
When it is desired to discharge some of the 26
contents of the tube therefrom pressure with
the thumb, preferably, engaging the wall in the
region of recess I5 is applied at the point I‘! to
the wall of the tube and this pressure is trans
mitted to the end I6 of the spring l2 causing the 30
latter to flex inwardly to the position shown in
merals it will be seen that the improved ?exible
Figure 3. This obviously results in the valve l0
being drawn inwardly out of engagement with
paste tube comprises the ?exible tubular body
its seat 9 so that as external pressure is applied
35 5 sealed at one end in the usual manner as at 6
and provided at the opposite end thereof with
a shoulder portion 1 that is substantially rec
tangular in cross section as shown in Figure 7
and tapers to an integral neck 8.
The neck 8 is provided at the discharge end
40
thereof with an internal conical valve seat 9
45
against the end N5 of the spring to flex the spring
inwardly to a position suggested in Figure 3
whereby to move the valve member ID inwardly
off of its seat 9 and thereby permit the contents
to the tube either by rolling the tube upon itself 35
as is sometimes done, or otherwise, some of the
contents of the tube will be forced to exude there
from through the neck 8.
Upon release of pressure at the point I‘! spring
will spring back to its normal position urging
the valve member ID into engagement with its
against which is adapted to normally seat the
seat 9 for substantially sealing the tube, the parts
substantially conical valve core I0 provided on
when the tube is sealed being as shown in Fig
one end of a stem ll.
ure 4.
Anchored within the shoulder 1 adjacent the
inner end of the shoulder is one end of a ?at
spring [2 to which is welded or otherwise se
cured as at E3 the inner end of the stem II.
At the side thereof opposite to the anchored
50 end 14 of the spring l2 the shoulder l is
formed to provide a recess I5 which accommo
dates the angular free end [6 of the aforemen
tioned spring l2,
The portion of the tube 5 forming the outer
65 wall of the recess I5 is provided at point I‘! in a
It is thought that a clear understanding of the
construction, utility and advantages of a flexible
paste tube embodying the features of the present
invention will be had without a more detailed
description thereof.
Having thus described the invention what is 60
claimed as new is:
1. In a ?exible paste tube, an integral neck
provided internally thereof with a valve seat, a a
spring member anchored at one end within said
tube and extending transversely of the tube, a 55
2
2,134,910
valve stem secured at one end thereof to the
posed intermediate said brace and the neck
spring intermediate the ends of the spring, a
equipped end of the tube.
valve disk on the free end of said stem and nor
3. In a ?exible paste tube of the character de
scribed, an integral neck, a transverse spring
member mounted internally of the tube and
mally urged by said spring into seating engage
ment with said valve seat, said spring adapted
to bow longitudinally incidental to pressure being
v
adapted to be flexed longitudinally incidental to
applied to the wall of the tube in a manner to
the application of pressure laterally to the tube
flex a portion of said wall inwardly into engage
at a point substantially in alinement with said
spring member, a valve stem secured at one end
ment with the free end of the spring, to thereby
10 draw said valve disk inwardly of the tube out of
engagement with said valve seat.
2. In a ?exible paste tube, an integral neck
provided internally thereof with a valve seat, a
spring member anchored at one end within said
15 tube and extending transversely of the tube, a
valve stem secured at one end thereof to the
spring intermediate the ends of the spring, a
valve disk on the free end of said stem and nor
mally urged by said spring into seating engage
20 ment with said valve seat, said spring adapted to
bow longitudinally incidental to pressure being
applied to the wall of the tube in a manner to
?ex a portion of said well inwardly into engage
ment with the free end of the spring, to thereby
26 draw said valve disk inwardly of the tube out of
engagement with said valve seat, and a brace
extending transversely of said tube interiorly
thereof, said brace at one end thereof and the
wall of said tube being mutually separated so as
30 not to interfere with the inward ?exing of the
tube wall when the latter is so ?exed inwardly
for ?exing said spring, said spring being dis
thereof to said spring intermediate the ends of the
latter, and a closure member for said neck on
the free end of said stems, and movable inward
ly of the neck to an open position incidental to
the aforementioned longitudinal ?exing of said
transverse spring member.
15
4. In a ?exible paste tube of the character de
scribed, an integral neck, a transverse spring
member mounted internally of the tube and
adapted to be ?exed longitudinally incidental to
the application of pressure to the tube, a valve
stem secured at one end thereof to said spring
intermediate the ends of the latter, and a closure
member for said neck on the free end of said
stem, said tube at one side thereof being provided
with an internal pocket, and said spring having 25
the free end thereof extending into said pocket
and provided with a lateral longitudinally curved
projection to facilitate contact of the wall of the
tube with the spring for ?exing the latter inci
dental to pressure being applied to the wall of 30
the tube in the region of said pocket.
WENCIL C. DVORAK.
Документ
Категория
Без категории
Просмотров
0
Размер файла
293 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа