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Патент USA US2410799

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‘Nov. E2, 19%.
c. w. BASSETT
2,410,799’
MOISTURE EJECTION DEVICE FOR AIR PRESSURE SYSTEM
Fi'led March 2, 1945
2 Sheets-Sheet vl
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INVENTOR
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NW. 12, 1946.
‘c, w. BASSETT
' 12,410,799
MOISTURE, EJECT-ION ‘DEVICE FOR AIR PRESSURE SYSTEM - ,
\Filed March 2, 1945
I
2 Sheets-Shee_t 2
This. v
INVENTOR
CYRUS W. BASSETT
ATTORNEY
Fetented Nov. l, 194%
its
'
2,410,799
MOISTURE
PRESS
EJECON
SYSTEMS
DEVICE FGR "1
Cyrus W. Bassett, Long Branch, N. .l., assignor
to National Pneatic @ompa'ny, New York,
N. Y., a corporation of West ‘Virginia
_
Application March 2, 1945, Serial No. 580,691
(on. see-cs)
The present invention relates to a device for .
ejecting moisture from air pressure systems, and
particularly, to such a device in which the means
for ejecting moisture includes chambers recip
rocable in a cylinder.
It is a well known fact that moisture and for
eign mattertend to collect at the bottom of air
pressure tanks, and that, unless removed, such
moisture and matter tend to cause rust,'gummins,
and premature wear of piston and valve parts
utilized in connection with the air pressure sys
tem,
-
,
.
‘
It is an object of this invention to provide a
mechanism for removing moisture and foreign
matter from an air pressure tank and the lines
and devices connected thereto without substan
2
or lugs it so that the cylinder may he clamped
in adjusted position by means of the screw‘ it.
The cylindrical portion of the casting i t is capped
at its left end, as seen in Figures 1 and 2-, by
means of the cap 26, which cap is provided with
a port 2! to assure that no pressure will build up
within this cylinder. A piston assemblage is pro
vided which operates in‘ the cylinder ill, this as~
semblage' comprising a piston rod. 22 in. the form.
of a bolt, togetherv with a‘plurality of‘ leather
cups 23, washers 2d audit, spacers 2e and 2?,
sleeves 28 and 2s, and nut W. In addition, ‘each
cup 21s isprovided with an expander disk 3i ofv
a common type. The right hand one of the cups
15 23 together with a pair of washers 2&3 and 2E
and expander disk 3!, comprises the operating
piston for the device; pressure exerted thereupon
tial reduction of the tank pressure.
It is another object of the invention to cause
causes movement of. the entire assemblage to the
left against the action of a spring 32 which ex
It is a still further object of the invention to 20 tends from the cap 2t to the left hand one of
provide a device for such moisture removal which
the washers 25.
shall be economical to manufacture and emcient
The remaining ‘four leather cups 23 are ar
in operation.
.
such moisture removal automatically.
ranged in pairs, with the ?anges thereof facing
Panther objects and features of the invention
each other, thus forming two'chamherswhich
will appear when the following description is con 25 are/reciprocable with the piston assemblagel
sidered in connection with the accompa,
‘Surrounding the cylinder l 8, in a location to be
drawings, in which, _
in alignment with a chamber formed between
Figure 1 is a longitudinal cross sectional view of ' two of the leather cups 2% when the piston as-i
my device, the section being taken on the plane
semblage is in normal position, is a ring 33 hav-'
of the line l--l ofFigureZ;
30 ing a boss 3% thereon, which boss is threaded and
Figure 2 is a bottom elevation of the device
communicates with the interior of the cylinder it
of Figure 1 ;_v
_
_ by means of the ports 35 extending through the
Figure 3 is an elevatlonal view showing the
application of the device of the invention to an
ring ‘33 and the cylinder E0.- The ports or holes
35 are countersunk on the inner ends thereof to
35 avoid sharp cutting edges which might damage
Figure 4 is a leit end elevation of the device
the cups 2%. Further, a number of small holes
as shown in ?gures 1 and 2; and
35, in the’ particular instance three, is provided
Figure 5 is a transverse cross section of the,
rather than a single hole of the same cross sec
air pressure system;
‘
device, the section being taken on the line 5-5
of Figure 2, the piston structure being removed.
tional area, in order to reduce the tendency to
cut the cups 213'.
Referring now to the drawings, the device of
my invention comprises a cylinder it which is
’
from the holes to in either direction and at dis
tances equal to the travel of the piston assem
blaze. By means of this arrangement, when the
left hand chamber is in communication with the ‘
threaded pipe ‘connection it centrally located
therein. Between the end of the cylinder and
the can i! there is'provided the usual gasket
'
'
vided in the cylinder walls at points axially spaced
capped at one end with end cap ll having a
member l3.
'
Groups of holes 3d similar to holes es are pro- '
7
holes 35, the right hand chamber [is in commu
Cylinder ill, at its left end, is screw threaded
nication with the right ‘hand group of holes 35;
and engages with a casting it, this casting being
and when the right hand chamber, by virtue of
generally cylindrical in shape and having pro lit operation
of the piston, is in communication. with
vided integrally therewith a plate is which may
the holes 35 the left hand chamber is in com
be suitably supported upon the equipment on
munication with the left hand group of holes so.
which the air pressure system, including the de
Referring now to Figure 3, there is shown
vice, is located. The portion it of the casting
therein the use of the device above described in
is slotted at i? and is provided with integral ears
an air pressure system. In this system. a com”
.
,
2,410,799
travel of the piston for discharging moisture
_ from said chamber.
' the tank 42 through a control valve 44 and line
45 to'the point of utilization, which may be, for
Cl,
example, a di?'erential engine of a vehicle door,
or the brake cylinder of a vehicle brake system.v
.A branch 48 from the line 45 is connected to pipe
connection l2 in the cap H previously described.
In addition, a connection 41 extends from the
bottom of the tank 42, which is where moisture 10
and foreign matter normally collects, to the boss
34 on the ring 33, being threaded or otherwise
suitably connected to the ring 33 thereby to com
municate with the holes 35.
4
moisture supplying means a distance equal to the‘
pressor Ml supplies air through the pipe 4| to the
pressure tank 42-. A pressure line “extends from
2. In a moisture ejecting device for an air
pressure system, in combination, a cylinder, 8.
piston reciprocable in said cylinder, a pair of
chambers movable with said piston,_means for
supplying moisture and foreign matter from a
pressure reservoir to one of said chambers when
said piston is in normal position, said means also
serving to supply moisture and foreign matter
. to the other of said chambers when said piston
is in operated position and means comprising out
lets to atmosphere spaced along said cylinder on
Whenever pressure is applied to the line 65 and 15 either side of said supply means a distance equal
' to the travel of the piston for permitting dis
branch 58, there will be a; movement of the pis
ton assemblage to the left. Whenever the pres
v sure is removed, the assemblage will return to
charge from one of said'chambers at each end of
the stroke of said piston.
33. In a moisture ejecting device for an air pres
the right under urge of the spring 32. Moisture
and air will be supplied continually through the 20 sure system, in combination, a cylinder, a piston
reciprocable in said cylinder, means for com
connection 81 and the holes 35 to the interior of
municating pressure of the system to urge said
one or the chambers formed by the two pairs of
piston in one direction, a plurality of leather
cups 23. When the piston is in the normal po
cups mounted for movement withsaid pistons,
sition, as shown in Figure 1, such air and mois
ture will be supplied to-the left hand one of the v 25 said cups being arranged in pairs facing each
other to thereby form with the cylinder walls a
two chambers, the amount being determined by
pair of chambers, an inlet through said cylinder
the equalization of pressure in the tank 62 and
walls, said inlet communicating with the lower
the chamber. Upon the next operation of the
portion of an air reservoir, 2. pair of outlets in
valve 48, the piston assemblage will move towards
the left in Figure 1, and thus connect the left 30 said cylinder, said outlets being spaced the length
of the piston travel oneither side of said inlet
hand chamber to the atmosphere through the left
whereby moisture is admitted to one of said
hand ‘set of holes 38, thereby permitting dis
chambers when the piston is in normal position
charge of the moisture and foreign matter to the
and is discharged therefrom when the piston
atmosphere. While this discharge is taking place
the right hand chamber vwill have been brought 35 reaches its operated position and moisture ad
mitted to the second of said chambers when said
into communication with the bottom of the
piston is in operated position and is discharged
tank 42 and air, and moisture will be discharged
when
the piston returns to normal position.
into this chamber. As soon as the valve 55 is
4. A system cleaning device for a system placed operated to release ‘the pressure from the line as
and branch 46, the spring 32 will cause the pis 40 under air pressure, wherein a. pressure reservoir
is provided, and wherein foreign matter and
ton to move to the right; upon completion of this
moisture accumulate in the reservoir, and where
movement, the air and moisture trapped in the
in air under pressure is led away from the
left hand chamber will be discharged to atmos
phere through-the right hand group of holes 35;
reservoir by a conduit, and wherein means are
45 provided to control the ?ow of air under pressure
through. said conduit, the device i'including a
tom of a vehicle, such as a trolley car or a bus,
cylinder, means for forming a chamber within
and the position of the cylinder l0 angularly ad
In general, the device is mounted upon the bot
the cylinder, ‘an inlet to the cylinder, the inlet
lusted by means of the clamp and the bolt 19 so
being in communication with the reservoir, an
that the holes 38 i’ace downwardly, to direct the
discharge of moisture from the chambers .down so outlet from the cylinder spaced from the inlet,
wardly.
_
means in the cylinder for moving the chamber, >
the moving means including means normally
eilective to place the chamber in registry with
the inlet, and including means under control of
blage lies in either ‘one M its extreme positions, 55 air under pressure through the conduit for bring
ing the “chamber into registry with the. outlet.
the device of this invention is especially empient,
5. A system cleaning device for a system placed
" particularly as contrasted with rotary valve'struc
under
air pressure, wherein a pressure reservoir
tures known in the art in which there‘ is asingle
Owing to the fact that two chambers are pro
vided, and that there is thus a discharge 0! mois
ture from the cylinder when the piston assem
discharging action for each complete reciproca
. is provided, and wherein foreign matter and
of my invention it will be clear that many other
bya conduit, and wherein means are provided to
control the ?ow of air under pressure through said
30 moisture accumulate in the reservoir, and wherein
tion or the piston assemblage.
air under pressure is led away from the reservoir
While I have described a preferred embodiment
'tor'ms thereof may be constructed. ' Consequently
conduit, the device including a substantially hori
I do not want to be restricted by the foregoing
description but on the contrary I wish that the 65 zontally disposed cylinder, means for forming a
chamber within the cylinder, an inlet to the
only limits be those of the appended claims,
cylinder,
the inlet being in communication with
What is claimed is:
>
'
I. In a moisture ejecting device ‘for an air
pressure system, in combination, a cylinder,‘ 9.
the reservoir, an outlet from the bottom of the
cylinder and spaced from the inlet, means in the
piston reciprocable in said cylinder, a pair of 70 cylinder for moving the chamber, the moving
means including means normally e?ective to
> rrichambersmovable with said piston. means for
place the chamber in registry with the inlet, and
supplying moisture and ‘foreign matter from a
including means under control of air under pres
pressure'reservoir to oneoi said chamberswhen
sure through the conduit for bringing the chamber
said piston is in normal position and means com
prising outlets to atmosphere, spaced-1mm ‘said. lolinto registry with the outlet.
5
acid-roe
6. A system cleaning device for a system placed
horizontally disposed cylinder, a piston movable
in the cylinder, means carried by the piston and
under air pressure, wherein a pressure reservoir
is provided, and wherein foreign matter and
moisture accumulate in the reservoir, and wherein
air under pressure is led away from the reservoir
cooperating with the cylinder to form a chamber
within the cylinder, means to form a delivery con
nection between the cylinder and the reservoir,
by a conduit, and wherein means are provided to
means to provide vdischarge communication with
control the flow of air under pressure through
the bottom of the cylinder, the discharge com
said conduit, the device including a cylinder,
munication providing means being spaced from.
chamber-forming means cooperating with the
the delivery connection forming means, means
cylinder, means to form a delivery connection be 10 normally eifective to place the chamber in regis
tween the cylinder and the reservoir, means to
try with the delivery connection forming means,
provide discharge communication with the
and means to conduct air from the conduit to the
cylinder, the discharge communication providing
cylinder to cause the piston to bring the chamber
means being spaced from the delivery connection
into registry with the discharge communication ‘
forming means, means in the cylinder for moving
the chamber, the moving means including means
normally e?ective to place the chamber in registry
with the delivery connection forming means, and
15 _
providing means.
.
10. A system cleaning device for a system
placed under air pressure, wherein a pressure res
ervoir is provided, and wherein foreign matter
including means under‘control of air under pres
and moisture accumulate in the reservoir, and
sure through the conduit for bringing the chamber '20 wherein air under pressure is led away from the
into registry with the discharge communication
reservoir by a conduit, and wherein means are
providing means.
provided to control‘ the flow of air under pressure
7. A system cleaning device for a system placed
through said conduit, the device including a cyl
under air pressure, wherein a pressure reservoir
inder, means for forming a plurality of chambers
is provided, and wherein foreign matter and ,25 within the cylinder, an inlet'to the cylinder, the
moisture accumulate in the reservoir, and wherein
inlet being in communication with the reservoir,
an under pressure is led away from the reservoir
van outlet from the cylinder spaced from the inlet,
by a conduit, and wherein means are provided to
means in the cylinder for moving the chambers,
_ control the ?ow of air under pressure through
the-moving means including means normally ef
said conduit, the device including a substantially 30 fective to place a chamber in registry with the
horizontally disposed cylinder, chamber-forming
inlet, and including means under control of air
means cooperating with the cylinder, means to
under pressure through the conduit for bringing
form a delivery connection between the cylinder
a chamber into registry with the outlet.
and the reservoir, means to provide discharge
11. A system cleaning device for a system placed‘
communication with the bottom of the cylinder,
the discharge communication providing means
under air pressure, wherein a pressure reservoir
being spaced from the delivery connection form
ing means, means in the cylinder for moving the
chamber, the moving means including means
normally e?ective to place the chamber in registry
with the delivery connection forming means, and
is provided, and wherein foreign matter and mois
ture accumulate in the reservoir, and wherein air
under pressure is led away from the reservoir by
‘a conduit, and wherein means are provided to
control the flow of air under pressure through said '
conduit, the device including a cylinder, means
including means under control of air under pres
for forming a plurality of chambers within the
sure through the conduit for bringing the chamber
cylinder, an inlet to the cylinder, the inlet being
into registry with the discharge communication
in communication with the reservoir, an outlet
providing means.
'
45 from the cylinder spaced from the inlet, means
8. A system cleaning device for a system placed
in the cylinder for moving the chambers, the
under air pressure, wherein a pressure reservoir
moving means including means normally e?ec
is provided, and wherein foreign matter and mois
tive to place the chambers alternately in registry
ture accumulate inv the reservoir, and wherein air
with the inlet, and including means under con
under pressure is led away from the reservoir by_ 50 trol of air under pressure through the conduit
a conduit, and wherein means are provided to
for bringing a chamber into registry with the
control the ?ow of air under pressure through
said conduit, the device including a cylinder, 2.
12. A system cleaning device for a system placed
piston movable in the cylinder, means carried by
under air pressure, wherein a pressure reservoir
outlet.
,
'
the piston and cooperating with thecylinder to . is provided, and wherein foreign matter and mois
‘form a chamber within the cylinder, means to
ture accumulate in the reservoir, and wherein
form a delivery connection between the cylinder
and the reservoir, means to provide discharge
communication with the cylinder, the discharge
air under pressure is led away from the reservoir
by a conduit, and wherein means are provided
to control the flow of air under pressure through
communication‘ providing‘ means being spaced
60 said conduit, the device including a cylinder,
from the delivery connection forming means,
means normally effective to place the chamber in
registry with the delivery connection forming
means for forming a plurality of chambers with
in the cylinder, an inlet to the cylinder, the inlet
being in communication with the reservoir, a
means, and means to conduct air from the con
plurality of outlets from the cylinder spaced from
duit to the cylinder to cause the piston to bring 65 the inlet, means in the cylinder for moving the
the chamber into registry with the discharge com
chambers, the moving means including means
munication providing means.
normally effective to place one of the chambers
9. A system cleaning device for a system placed
in registry with the inlet and the other chamber
under air pressure, wherein a pressure reservoir
in registry with an outlet, and including means
is provided, and wherein foreign matter and mois 70 under control of air under pressure through the
ture accumulate in the reservoir,'and wherein air
conduit for bringing the ?rst indicated chamber
under pressure is led away from the reservoir
into registry with another outlet and the other
by a conduit, and wherein means are provided
chamber into registry with the inlet.
to control the ?ow- of air under pressure through
13. A system cleaning device for a system placed
said conduit, the device including a substantially
under air pressure, wherein a pressure reservoir
2,410,790
7
is provided, and wherein foreign matter and mois
ture accumulate in the reservoir, and wherein
8‘,
cylinder spaced from the inlet, means normally
e?ective to place the chambers alternately in re;
istry with the inlet, and means to conduct air
air ‘under pressure is led away from the reservoir
from the conduit to the cylinder to cause the.
by a conduit, and wherein means are provided
piston to bring the chamber into registry with
to control the flow of air under pressure through
the outlet.
said conduit, the device including a cylinder, 9.
15. A system cleaning device for a system placed
piston movable in the cylinder, means carried by
under air pressure, wherein a pressure reservoir
the piston and cooperating with the cylinder to
is provided, and wherein foreign matter and mois
form a plurality of chambers within the cylinder,
an inlet to the cylinder, the inlet being in com 10 ture accumulate in the reservoir, and wherein
air under pressure is led away from the reservoir
munication with the reservoir, an outlet from the
by a conduit, and wherein means are provided
cylinder spaced from the inlet, means normally
to control the flow of air under pressure through
effective to place a chamber in registry with the
said conduit, the device including a cylinder, a‘
inlet, and means to conduct air from the conduit
piston movable in the cylinder, means carried by
‘to the cylinder to cause the piston to bring the
the piston and cooperating with the cylinder to
chamber into registry with the outlet.
form a plurality of chambers within the cylinder,
14. A system cleaning device for a system placed
an inlet to the cylinder, the inlet being in com
under air pressure, wherein a pressure reservoir
munication with the reservoir, a plurality of out
is provided, and wherein foreign matter and mois
ture accumulate in the reservoir, and wherein 20 lets from the cylinder spaced from the inlet,
means normally effective to place one of the
air under pressure is led away from the reservoir
chambers in registry with the inlet and the other
- by a conduit, and wherein means are provided
to control the ?ow of air under pressure though ' chamber in registry with an outlet, and means to
conduct air from the conduit to the cylinder tov
saidconduit. the device including a cylinder, a
piston movable in‘ the cylinder, means carried by 25 cause the piston to bring the first indicated cham
ber- into registry with another outlet and the
the piston and cooperating with the cylinder to
other chamber into registry with the inlet.
form a plurality oi! chambers within the cylinder,
an inlet to the cylinder, the inlet being in com
CYRUS W. BASSETI’.
-munication'with the reservoir, an outlet from the
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