U.S. patent number 3,805,425 [Application Number 05/326,712] was granted by the patent office on 1974-04-23 for brush devices.
This patent grant is currently assigned to Rowenta Werke GmbH. Invention is credited to Hagen Spoida, Kurt Wohlfart.
United States Patent |
3,805,425 |
Spoida , et al. |
April 23, 1974 |
**Please see images for:
( Certificate of Correction ) ** |
BRUSH DEVICES
Abstract
A hand operated brush device is provided which includes a
support plate which serves for the fixing of the steam generator,
the heating device and the electrical connections to a steam
discharge head of the said casing and also serves to have a pump
device connected thereto prior to assembly of the device, and a
screw cap provided with an opening for the intake of said pump
device which screw cap serves to hold together the said steam
discharge head which is formed as two casing halves and also serves
as a connecting member with a storage or water tank.
Inventors: |
Spoida; Hagen (Muehlhelm/Main,
DT), Wohlfart; Kurt (Offenbach/Main, DT) |
Assignee: |
Rowenta Werke GmbH (Offenbach
am Main, DT)
|
Family
ID: |
23273352 |
Appl.
No.: |
05/326,712 |
Filed: |
January 26, 1973 |
Current U.S.
Class: |
38/69; 392/390;
68/222; 392/396; 392/404; 392/399 |
Current CPC
Class: |
D06F
75/30 (20130101); D06F 87/00 (20130101) |
Current International
Class: |
D06F
87/00 (20060101); D06F 75/00 (20060101); D06F
75/30 (20060101); A41j 051/00 () |
Field of
Search: |
;38/69,70,77.8,77.81
;68/222 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Lawson; Patrick D.
Attorney, Agent or Firm: Clark; George R. Rose; Neil M.
Pacocha; John S.
Claims
What is claimed as new and desired to be secured by Letters Patent
of the United States is:
1. A hand operated brush device comprising a steam discharge means
formed on two casing halves, a pump, a storage tank, a support
plate, a steam generator, a heating means, and said support plate
constructed to secure said steam generator and said heating means
in said steam discharge means and to support said pump, and a
closure means provided with an opening for the intake of said pump,
said closure means serving to hold together said casing halves of
said steam discharge head and also serving to connect said steam
discharge means with said storage tank.
2. A brush device according to claim 1 wherein said two casing
halves have ribs between which said support plate is inserted.
3. A brush device according to claim 1 wherein said steam generator
includes a vaporising chamber into which is introduced a vaporiser
insert constructed so as to produce a labyrinth-like steam
chamber.
4. A brush device according to claim 3 wherein said vaporiser
insert is made from plastics and has deflecting and guiding ribs as
well as steam passage openings.
5. A brush device according to claim 1 wherein the intake of said
pump simultaneously serves as the connection between said pump and
said storage tank and as a sealing member between said storage tank
and said closure means.
6. A brush device according to claim 1 wherein said intake is a
suction pipe having a plate-like seal and a connecting pipe formed
integrally therewith.
7. A brush device according to any of claim 1 wherein said closure
means can be fixed to the steam discharge means with the aid of
projections and has a thread and said storage tank has a thread
which can be screwed into said thread on said closure means.
8. A brush device according to claim 1 wherein said steam generator
has a recess which serves for receiving a thermostat.
9. A brush device according to claim 1 wherein said two casing
halves of the steam discharge means has a circular drawn-in rim
with a projecting annular flange, a seal is provided which rests on
the annular flange, a cover plate is positioned over said seal, and
a bead projects beyond the periphery of said casing halves for
receiving a brush frame.
10. A brush device according to claim 9, wherein said seal serves
both as a sealing member between said cover plate and said steam
generator and as a seal for the inside of steam discharge
means.
11. A brush device according to claim 1 wherein said steam
generator includes a vaporising insert made of glass fibre or
reinforced polyamide.
Description
BACKGROUND OF THE INVENTION
This invention concerns improvement in or relating to brush devices
and more particularly brush devices of the type which are hand held
and operated and which include a brush and an electrical steam
generator comprising a heating device and a vaporising chamber
arranged in a casing adjacent to a storage tank for the liquid as
well as a pump device.
Such devices for freshening up and smoothing clothing have
fundamentally long been known. Most components such as e.g., the
steam generator with the heating device, the pump device and the
electrical connections are arranged in the steam discharge head of
the casing while the handle is in the form of a storage or water
tank.
Manually operated devices of this type are relatively small and are
not suitable for rational manufacture. Thus, for example, no
preassembly of components is possible and in addition hot
components such as e.g., the steam generator are in direct contact
with the casing so that expensive temperature-resistant materials
have to be used.
It is an object of the invention to provide a manually operated
device of the indicate type which meets the highest requirements
but is nevertheless of simple design which can be easily assembled
and easily disassembled again.
According to the invention we provide a hand operated brush device
of the type described including a support plate which serves for
the fixing of the steam generator, the heating device and the
electrical connections to a steam discharge head of the said casing
and also serves to have a pump device connected thereto prior to
assembly of the device, and a screw cap provided with an opening
for the intake of said pump device which screw cap serves to hold
together the said steam discharge head which is formed as two
casing halves and also serves as a connecting member with a storage
or water tank.
By means of the screw cap the two casing halves forming the steam
discharge head are held together and simultaneously the screw cap
serves as a connecting member between the steam discharge head and
the storage or water tank. The individual components such as for
example the steam generator with the heating device, the pump
device and the electrical connections are preassembled on the
support plate and during assembly are introduced into the casing as
a complete unit. As a result not only are the manufacturing costs
considerably reduced but it is thereby achieved that the hot steam
generator no longer comes into contact with the casing. The
necessary expenditure on thermal insulation can therefore be
reduced relative to the known devices and also it is no longer
necessary to use temperature resistant material for the casing so
that once again costs can be lowered.
The invention will be explained hereinafter as applied to a
preferred embodiment, shown in the drawings in greater detail, in
which:
FIG. 1 is a longitudinal section through a hand operated brush
device according to the invention;
FIG. 2 is a longitudinal section through the steam generator on the
line II--II of FIG. 3;
FIG. 3 is a sectional view on the line III--III of FIG. 1 or
III--III of FIG. 2;
FIG. 4 is a sectional view on the line IV--IV of FIG. 1; and
FIG. 5 is a plan view of the screw cap.
The hand held and operated brush device shown in FIG. 1 comprises a
steam discharge head 1 detachably connected to a storage or water
tank 2 and comprising two casing halves 3 and 4. Inside the steam
discharge head 1 are provided a steam generator 5, a pump device 6
and electrical connections 7. A support plate 8 serves to receive
the steam generator 5 and the electrical connections 7 and is
insertable between two pairs of ribs 9 formed on the side walls of
casing halves 3 and 4. With the aid of a pipe connection 10 located
on steam generator 5 over which pipe connection a tube 11 is pushed
the pump device 6 at least during preassembly is suspended directly
on the support plate and upon final assembly is merely placed in
that part of the casing which is to receive it. A knob 13 which
projects through the casing wall 12 serves to operate the pump
device 6.
For connection to the support plate 8 the steam generator 5 has
advantageously two projections 14 and 15 which are aligned with
corresponding projections 16 and 17 on the support plate. Screws
passing through projections 16 and 17 of support plate 8 into the
projections 14 and 15 of steam generator 5 secure the steam
generator to the support plate.
To support the plate 8 in addition two retaining pins 18 and 19 are
provided on the steam generator 5 which are provided with
insulation rings 20 and are inserted between pairs of ribs formed
in casing halves 3 and 4.
As shown in FIG. 2 the steam generator 5 has an electrical heating
device 27 which is a spiral tubular heater. Inside its coils the
casing of the steam generator 5 has a recess 28 wherein is arranged
a thermostat 29. This is connected in the electrical circuit and
ensures that the temperature of the steam generator 5 remains
within determined limits.
The steam generator 5 also has a vaporising chamber 30 in which is
introduced a vaporiser insert 31 in order to provide a
labyrinth-like steam chamber.
The vaporiser chamber 31 is made from temperature resistant
plastics i.e., preferably glass fibre reinforced polyamide and has
a plurality of deflecting and guiding ribs 32 to 37. These
deflecting and guiding ribs 32 to 37 are displaced relative to one
another and is in particular shown in FIGS. 2 and 3 so that the
medium flowing through the vaporising chamber 30 has to change its
direction several times.
The water used for vaporising purposes is sprayed into the
vaporising chamber 30 with the aid of pump device 6 through a
nozzle 38 and in the area 39 impinges on steam generator 5 or
vaporiser insert 31 which results in a water-steam mixture.
The vaporiser insert 31 is so designed that the central portion of
rib 34 as well as ribs 36 which face one another in a V-shaped
manner extend to the base of the vaporising chamber 30 which causes
the water-steam mixture to be deflected and forced around the ribs
36 and then corresponding to FIGS. 2 and 3 to flow in the direction
of the other end of the vaporising chamber 30.
As a result of the base configuration of the vaporising chamber 30
two steam passage openings 40 are formed in the front part of the
steam generator 5 through which the steam which still possibly
contains water droplets flows in a cascade 41. After being guided
round ribs 37 of vaporiser insert 31 according to FIGS. 2 and 4 it
reaches outlets 42 in a cover plate 43 which seals the vaporising
chamber 30 which is open at the front. As a result of the multiple
deflection of the steam the water droplets carried along with the
steam are prevented from being forced directly through outlets
42.
The nozzle 40 is advantageously made of Teflon and has a very good
thermal insulation so that no lime deposit occurs in the nozzle
opening which only has a small cross-section.
The two casing halves 3 and 4 of steam discharge head 1 have at the
steam outlet side a circular drawn-in rim 44 with a projecting
annular flange 45. Cover plate 43 by means of its edge 47 directed
downwards steam discharge head 1 projects over flange 45 and is
detachably connected to steam generator 5. Between cover plate 43
and steam generator 5 is provided a seal 48 which extends beyond
the projecting annular flange 45 of casing halves 3 and 4.
Consequently seal 48 is tensioned between cover plate 43 on the one
hand and steam generator 5 or annular flange 45 of the peripheral
rim 44 of casing halves 3 and 4 on the other. As a result there is
a sealing both between cover plate 43 and steam generator 5 as well
as a sealing of the inside of the steam discharge head 1 because
the steam flowing back from a surface upon which vapour has been
deposited cannot penetrate the inside of the casing.
Finally a bead 40 projects beyond the periphery of the casing
halves 3 and 4 and serves to receive a brush frame 50 which can be
introduced onto the head 49. When the brush frame 50 is removed
from the bead 49 slightly deflects the steam flowing back from a
surface upon which vapour has been deposited and thus protects the
user's hand.
The pumping device 6 located in steam discharge head 1 is connected
with the storage or water tank 2 via an intake 51. Intake 51 is a
soft thermoplastic moulded member and in a one piece construction
consists of a suction pipe 52, a plate-like seal 53 and a pipe
connection 54 which is pushed over the suction tube 55 of pumping
device 6.
The plate-like seal 53 serves as a sealing member between the
storage and water tank 2 and a screw cap 56 arranged in steam
discharge head 1 and which serves as a connecting member between
steam discharge head 1 under the storage of water tank 2.
Screw cap 56 has an opening 57 for pipe connection 54 and
furthermore two projections 58 according to FIG. 5 are provided on
screw cap 56 which serve to fix the screw cap to the casing of the
steam discharge head 1. Screws 59 pass through both projections 58,
and with the aid of the ring 60, under the seating 61, they serve
to secure the two casing halves 3 and 4 together.
Screw cap 56 has a thread 62 which serves to secure the storage or
water tank 2 to the steam discharge head 1. The retracted neck 63
of the storage or water tank 2 has a corresponding thread which can
be screwed into thread 62. The plate-like seal 53 is clamped
between screw cap 56 and the free end of neck 63 to ensure a good
seal when the screw top 56 is screwed on.
While there has been illustrated and described a particular
embodiment of the present invention, it will be understood that
changes and modifications may occur to those skilled in the art,
and it is, therefore, contemplated by the appended claims to cover
all such changes and modifications as fall within the true spirit
and scope of the present invention.
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