U.S. patent number 3,694,848 [Application Number 05/084,649] was granted by the patent office on 1972-10-03 for vacuum and pressure pickup device for home and commercial vacuum cleaners.
Invention is credited to Frank Alcala.
United States Patent |
3,694,848 |
Alcala |
October 3, 1972 |
VACUUM AND PRESSURE PICKUP DEVICE FOR HOME AND COMMERCIAL VACUUM
CLEANERS
Abstract
An improved home and commercial vacuum cleaner employing
pressure and vacuum functions for picking up dirt and lightweight
articles from a rug surface.
Inventors: |
Alcala; Frank (Carefree,
AZ) |
Family
ID: |
22186312 |
Appl.
No.: |
05/084,649 |
Filed: |
October 28, 1970 |
Current U.S.
Class: |
15/346; 15/364;
15/402; 15/383 |
Current CPC
Class: |
A47L
5/14 (20130101); A47L 9/08 (20130101) |
Current International
Class: |
A47L
5/14 (20060101); A47L 9/02 (20060101); A47L
5/12 (20060101); A47L 9/08 (20060101); A47l
005/14 () |
Field of
Search: |
;15/345,346,363,364,367,366,402,405,415,383 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
167,076 |
|
Feb 1956 |
|
AU |
|
552,732 |
|
Dec 1956 |
|
IT |
|
892,658 |
|
Mar 1962 |
|
GB |
|
Primary Examiner: Roberts; Edward L.
Assistant Examiner: Moore; C. K.
Claims
What is claimed is:
1. A carriage for moving over surface for collecting dirt and the
like comprising:
a housing defining a cavity having an opening outward of the side
of said housing juxtapositioned to said surface and having forward
and rearward walls,
inlet and outlet conduits connected to said cavity of said
housing,
one of said conduits being connected to a source of pressure and
the other of said conduits being connected to a vacuum producing
means,
said inlet conduit being conducted to a jet producing device
arranged within the cavity of said housing laterally of the
direction of movement of said carriage and spacedly arranged
between the forward and rearward walls of the cavity,
said device defining a plurality of nozzles spacedly arranged along
the length of the device for directing jets of air under pressure
outwardly of said opening of said opening of said cavity,
said outlet conduit opening into said cavity so as to produce a
vacuum around said nozzle device,
said jets of air being directed substantially perpendicularly to
said surface for blasting dirt from said surface into the space of
said cavity under the influence of the vacuum of said outlet
conduit,
a comb mounted on said jet producing device adjacent said nozzles,
said comb comprising a plurality of teeth bent to extend at least
partially along its length outwardly of said opening in the
direction of movement of said carriage while said carriage is
moving in one direction only.
2. The carriage set forth in claim 1 in further combination
with:
a rotatably mounted comb, said rotatably mounted comb being
substantially parallelly arranged with said jet producing device
within said cavity of said housing and comprising two rows of
spacedly arranged teeth on opposite sides of a rotatably mounted
cylinder and extending longitudinally thereof,
and means for rotating said cylinder.
3. The vacuum-pressure carriage set forth in claim 2 in further
combination with a pair of spacedly arranged skids mounted on and
extending perpendicular to the longitudinal axis of said housing
over the sides of said housing defining the opening of said cavity
and in the direction of movement of said carriage.
Description
BACKGROUND OF THE INVENTION
This invention relates to an improved cleaner for home and
commercial use of the vacuum cleaner type, and more particularly to
an improved head or device for picking up articles such as dirt and
the like from rug covered surfaces by a combination of pressure and
vacuum functions.
DESCRIPTION OF THE PRIOR ART
While it is known that various types of vacuum cleaning devices
have been proposed and used for a variety of purposes, both
domestic and industrial, there still remains a need for an
efficient, inexpensive cleaner that will gather effectively litter
of all sorts, dirt and dust from bare and carpeted floors and
particularly from carpets of the shag or long, thick fabric type.
The prior art vacuum cleaners do not have the ability to remove the
dirt effectively from shag rugs since the fibers, if tangled, block
the effects of the suction from reaching the base of the rug where
the dirt gravitates.
Therefore, to improve on the prior art structures a new and
improved mobile cleaner is provided which employs a jet nozzle
arrangement in a suction hood of a pick up head so that the blasts
of air are directed, substantially perpendicularly into the rug and
to its base where the dirt and litter are located to dislodge it
and move it toward the surface of the rug fibers where suction
forces it directly into a collection bag or receptacle.
SUMMARY OF THE INVENTION
In accordance with the invention claimed an improved vacuum cleaner
for domestic and industrial use is provided which directs jets of
air under pressure directly into the rug in such a manner that the
dirt is moved upwardly from the base of the rug to aid the suction
forces.
It is, therefore, one object of this invention to provide an
improved cleaner of the vacuum cleaner type utilizing air under
pressure to dislodge the dust, dirt and assorted litter.
Another object of this invention is to provide an improved vacuum
cleaner in which jets of air are directed perpendicularly into the
surface of the rug to utilize the full forces of the air under
pressure to dislodge the litter.
A further object of this invention is to provide an improved vacuum
cleaner wherein the suction forces in the suction hood of the
cleaner substantially surround the jet nozzles except where the
jets of air enter the rug.
A still further object of this invention is to provide an improved
cleaner in which a plurality of jets are arranged laterally of the
direction of movement of the suction hood in the center of the
housing and juxtapositioned to a comb for parting the fibers of the
rug prior to receiving the jets of air.
A still further object of this invention is to provide a suction
hood for a vacuum cleaner wherein a revolving comb and a fixedly
mounted comb are positioned one on each side of a plurality of jets
all arranged in the suction hood laterally of the direction of
movement of the cleaner.
A still further object of this invention is to provide an improved
vacuum cleaner employing a plurality of jets arranged substantially
in the center of the suction shroud and mounted on a pair of spaced
runners for engaging the floor.
Further objects and advantages of the invention will become
apparent as the following description proceeds and the features of
novelty which characterize this invention will be pointed out with
particularity in the claims annexed to and forming part of this
specification.
BRIEF DESCRIPTION OF THE DRAWING
The present invention may be more readily described by reference to
the accompanying drawing in which:
FIG. 1 is a perspective view of a cleaning device embodying the
invention;
FIG. 2 is an enlarged view partly broken away of the
suction-pressure hood shown in FIG. 1;
FIG. 3 is a cross sectional view of FIG. 2 taken along the line
3-3;
FIG. 4 is a bottom partially broken away view of the
suction-pressure hood shown in FIGS. 1-3
FIG. 5 is a modification of the suction-pressure hood shown in FIG.
2 employing a rotating comb;
FIG. 6 is a bottom view of the structure shown in FIG. 5; and
FIG. 7 is a further modification of the structure shown in FIGS.
1-6 wherein a stationary comb is inserted in the housing of the
pressure jets.
DESCRIPTION OF PREFERRED EMBODIMENT
Referring more particularly to the drawing by characters of
reference FIG. 1 discloses a carriage for moving over a surface for
collecting dirt and the like and hereinafter referred to as a
cleaning suction-pressure head 10 connected by a pair of inlet and
outlet conduits or hoses 11 and 12 forming a wand 13 to a power
driven cleaner 14. Cleaner 14 may comprise conventional suction and
pressure creating means (not shown) in a wheel mounted canister
15.
Hose 11 is the suction duct having one end 16 connected to the
previously mentioned suction creating means in the canister 15 and
its other end 16' connected to a housing defining a cavity called a
suction hood 17 of the suction-pressure head 10 and terminating in
a port 18 shown in FIGS. 3 and 4.
The suction creating means in the canister may include a fan, a
blower, or an air impelling means of one type or another driven by
an electric motor (all not shown) contained in canister 15. It
should be noted that the end of the suction hose 11 terminating in
the canister is adapted to be connected through a removable fitting
to an air pervious, dirt impervious, air filtration and dirt
storage bag in canister 15.
As shown in FIG. 1 the pressure hose 12 has one end 21 connected to
a fitting 22 on canister 15 which may be connected to a housing
surrounding the air pervious bag in the canister or to a separate
source of air under pressure. The other end 21' of hose 12 is
connected to the pressure jet nozzle device 20.
Ends 16' and 21' of hoses 11 and 12, respectively are connected to
suction-pressure head 10 by means of pivotally mounted fittings 23
and 24 which can be moved laterally of the suction-pressure head 10
in the well known manner without losing suction or pressure in the
head through leakage to atmosphere.
The wand 13 comprises a handle member 25 which together with rigid
coverings 26 and 27 form an outer casing for the hoses 11 and 12
between the handle member 25 and the canister 15. In this manner
the suction-pressure head 10 may be readily moved across the
surface to be cleaned. The suction-pressure head 10 as shown in
FIGS. 1-4 may be mounted on skis or skids 28 and 29 which cause the
suction-pressure head to move freely over the surface to be
cleaned. It should be recognized that wheels may be used in place
of the skids if so desired.
As shown in FIGS. 2, 3 and 4 the pressure jet nozzle device 20
comprises a housing 30 extending across hood 17 laterally to the
direction of movement of the suction-pressure head 10. Housing 30
is connected through an integrated coupling 31 to fitting 24 which
is connected to pressure hose 12. Housing 30 is provided with a
plurality of openings 32 which direct air under pressure
perpendicularly into the surface to be cleaned. This is
particularly important when cleaning shag rugs since the fibers of
the rug are long and will distort or deflect off of it under air
pressure directed laterally at the rug surface. The housing is also
placed midway between the front and back of the hood 17 so that
suction may be applied to the suction-pressure head 10 on both
sides of it so that air and dirt deflected off of the rug surface
may be readily drawn into the suction hose 11.
FIGS. 5 and 6 illustrate a modification of the suction-pressure
head 10 shown in FIGS. 1-4 wherein a power driven rotating comb 35
is arranged in the housing perpendicular to its direction of
movement during a cleaning operation. The comb is driven by a belt
36 connected to an electric motor 37. Motor 37 is energized by
electric power furnished to the motor through wires which may be
threaded through one of the hoses 11 or 12 to canister 15.
As shown in FIGS. 5 and 6 the comb 35 comprises two rows of
spacedly arranged teeth 38 on opposite sides of and extending
longitudinally of a cylinder 39.
FIG. 7 illustrates a further modification of the structure shown in
FIGS. 1-6 wherein a stationary comb 40 is arranged to snap into the
base of the pressure jet nozzle device 20 and comprises a row of
teeth 41 extending laterally across the suction-pressure head 10.
Each tooth 41 comprises an arm bent at an angle as shown, so that
it extends downwardly and rearwardly of the pressure jet nozzle
device 20. The stationary comb parts the fibers of the rug so that
the suction rearwardly of the pressure jet nozzle device 20 may
easily draw the dirt and other litter from the base of the rug.
Although but a few embodiments of the present invention have been
illustrated and described, it will be apparent to those skilled in
the art that various changes and modifications may be made therein
without departing from the spirit of the invention or from the
scope of the appended claims.
* * * * *