U.S. patent application number 11/499977 was filed with the patent office on 2008-02-07 for cleaning device for fiber optic connectors.
This patent application is currently assigned to The United States of America as represented by the Secretary of the Navy. Invention is credited to Michael J. Hackert.
Application Number | 20080028567 11/499977 |
Document ID | / |
Family ID | 39027708 |
Filed Date | 2008-02-07 |
United States Patent
Application |
20080028567 |
Kind Code |
A1 |
Hackert; Michael J. |
February 7, 2008 |
Cleaning device for fiber optic connectors
Abstract
A cleaning device for fiber optic connectors that includes a
cleaning head, a cleaning fluid reservoir for holding cleaning
fluid, a pressurization source and a switching mechanism. The
cleaning head has a cleaning fluid passage and a vacuum passage.
The switching mechanism has at least a first position and a second
position. In the first position, the switching mechanism initiates
the pressurization source such the cleaning fluid is pressurized
and the cleaning fluid leaves the cleaning fluid reservoir and
enters the cleaning head via the cleaning fluid passage and exits
the cleaning head via the cleaning fluid passage as a spray. In the
second position, the switching mechanism initiates the
pressurization source such that air and expended cleaning fluid is
drawn into the vacuum passage.
Inventors: |
Hackert; Michael J.;
(Lexington Park, MD) |
Correspondence
Address: |
NAVAL AIR WARFARE CENTER AIRCRAFT;DIVISION OFFICE OF COUNSEL BLDG 435
SUITE A, 47076 LILJENCRANTZ ROAD UNIT 7
PATUXENT RIVER
MD
20670
US
|
Assignee: |
The United States of America as
represented by the Secretary of the Navy
|
Family ID: |
39027708 |
Appl. No.: |
11/499977 |
Filed: |
August 3, 2006 |
Current U.S.
Class: |
15/320 |
Current CPC
Class: |
B08B 2240/02 20130101;
G02B 6/3807 20130101; B08B 5/04 20130101; B08B 3/02 20130101; G02B
6/3866 20130101 |
Class at
Publication: |
15/320 |
International
Class: |
A47L 11/30 20060101
A47L011/30 |
Goverment Interests
STATEMENT OF GOVERNMENT INTEREST
[0001] The invention described herein may be manufactured and used
by or for the Government of the United States of America for
governmental purposes without payment of any royalties thereon or
therefor.
Claims
1. A cleaning device, comprising: a cleaning head, the cleaning
head having a cleaning fluid passage and a vacuum passage; a
cleaning fluid reservoir for holding cleaning fluid; and a
switching mechanism, the switching mechanism having at least a
first position and a second position, in the first position the
switching mechanism initiates pressurized gas such cleaning fluid
in the cleaning fluid reservoir is pressurized and the cleaning
fluid leaves the cleaning fluid reservoir and enters the cleaning
head via the cleaning fluid passage and exits the cleaning head via
the cleaning fluid passage as a spray, in the second position the
switching mechanism initiates pressurized gas such that air and
expended cleaning fluid is drawn into the vacuum passage.
2. The cleaning device of claim 1, wherein the switching mechanism
includes a Venturi nozzle and a valve, the valve able to divert
pressurized gas flow to the cleaning fluid reservoir or to the
Venturi nozzle, the Venturi nozzle when pressurized able to create
a vacuum in the vacuum passage to enable vacuuming up and removal
of cleaning fluid and contaminants from the fiber optic
connectors.
3. A cleaning device, comprising: a cleaning head, the cleaning
head having a cleaning fluid passage and a vacuum passage; a
cleaning fluid reservoir for holding cleaning fluid; a
pressurization source; and a switching mechanism, the switching
mechanism having at least a first position and a second position,
in the first position the switching mechanism initiates the
pressurization source such cleaning fluid in the cleaning fluid
reservoir is pressurized and the cleaning fluid leaves the cleaning
fluid reservoir and enters the cleaning head via the cleaning fluid
passage and exits the cleaning head via the cleaning fluid passage
as a spray, in the second position the switching mechanism
initiates the pressurization source such that air and expended
cleaning fluid is drawn into the vacuum passage.
4. The cleaning device of claim 3, wherein the switching mechanism
includes a Venturi nozzle and a valve, the valve able to divert
pressurized gas flow to either the cleaning fluid reservoir or to
the Venturi nozzle, the Venturi nozzle when pressurized able to
create a vacuum in the vacuum passage to allow vacuuming up and
removal of cleaning fluid and contaminants from the fiber optic
connectors.
5. The cleaning device of claim 4, wherein the cleaning device
further includes a control device, the control device activates the
valve to control flow of pressurized gas to the cleaning fluid
reservoir or to the Venturi nozzle for a pre-determined amount of
time.
6. The cleaning device of claim 5, wherein the cleaning device
further includes a multi-position actuator, the actuator allowing
the user to change the switching mechanism from the first position
to the second position.
7. The cleaning device of claim 3, wherein the switching mechanism
includes a third position, the third position being an off
position.
8. The cleaning device of claim 7, wherein the cleaning device
further includes a multi-position actuator, the actuator allowing
the user to change the switching mechanism to the first position,
the second position or the third position.
9. The cleaning device of claim 8, wherein the cleaning device
further includes an adapter, the adapter attachable to the cleaning
head such that other types of fiber optic connectors may be
cleaned.
10. The cleaning device of claim 9, wherein the cleaning device
further includes a waste reservoir for storing expended cleaning
fluid, the waste reservoir fluidly communicating with the vacuum
passage such that the drawn in expended cleaning fluid can be
stored in the waste reservoir.
11. The cleaning device of claim 10, wherein the cleaning device
further including a housing, the cleaning fluid reservoir, the
switching mechanism and the control device disposed within the
housing.
12. A cleaning device for fiber optic connectors, comprising: a
cleaning head, the cleaning head having a cleaning fluid passage
and a vacuum passage; a cleaning fluid reservoir for holding
cleaning fluid; a pressurization source; a switching mechanism, the
switching mechanism having at least a first position and a second
position, in the first position the switching mechanism initiates
the pressurization source such cleaning fluid in the cleaning fluid
reservoir is pressurized and the cleaning fluid leaves the cleaning
fluid reservoir and enters the cleaning head via the cleaning fluid
passage and exits the cleaning head via the cleaning fluid passage
as a spray, in the second position the switching mechanism
initiates the pressurization source such that air and expended
cleaning fluid is drawn into the vacuum passage, the switching
mechanism further including a Venturi nozzle and a valve, the valve
able to divert pressurized gas flow to either the cleaning fluid
reservoir or to the Venturi nozzle, the Venturi nozzle when
pressurized able to create a vacuum in the vacuum passage to enable
vacuuming up and removal of cleaning fluid and contaminants from
the fiber optic connectors; a control device, the control device
activates the valve to control flow of pressurized gas from the
pressurization source to the cleaning fluid reservoir or to the
Venturi nozzle for a pre-determined amount of time; a waste
reservoir for storing expended cleaning fluid, the waste reservoir
fluidly communicating with the vacuum passage such that the drawn
in expended cleaning fluid can be stored in the waste reservoir; a
housing, the housing, the cleaning fluid reservoir, the switching
mechanism, the control device and the waste reservoir disposed
within the housing.
13. The cleaning device of claim 12, wherein the cleaning device
further includes an adapter, the adapter attachable to the cleaning
head such that a male fiber optic connector may be cleaned.
14. The cleaning device of claim 13, wherein the cleaning device
further includes a multi-position actuator, the actuator allowing
the user to change the switching mechanism from the first position
to the second position.
15. The cleaning device of claim 13, wherein the switching
mechanism includes a third position, the third position being an
off position.
16. The cleaning device of claim 15, wherein the cleaning device
further includes a multi-position actuator, the actuator allowing
the user to change the switching mechanism to the first position,
the second position or the third position.
Description
BACKGROUND
[0002] The present invention relates to a cleaning device for fiber
optic connectors. More specifically, but without limitation, the
present invention relates a hand held cleaning device for fiber
optic connectors, that is self contained and does not require an
external power source.
[0003] Currently there are suitcase sized automated cleaning
devices for fiber optic connectors. These cleaning devices are
typically powered by an external power source such as an electrical
source of 110 volts (60 cycle). These cleaning devices are designed
as laboratory or manufacturing floor units and cannot be easily
moved. Alternatively, the cleaning devices can be powered by
compressed gas cylinders, which are cumbersome and difficult to
transport.
[0004] Thus, there is a need for a hand held cleaning device for
fiber optic connectors.
SUMMARY
[0005] It is a feature of the invention to provide a cleaning
device for fiber optic connectors that includes a cleaning head, a
cleaning fluid reservoir for holding cleaning fluid, a
pressurization source and a switching mechanism. The cleaning head
has a cleaning fluid passage and a vacuum passage. The switching
mechanism has at least a first position and a second position. In
the first position, the switching mechanism initiates the
pressurization source such the cleaning fluid is pressurized and
the cleaning fluid leaves the cleaning fluid reservoir and enters
the cleaning head via the cleaning fluid passage and exits the
cleaning head via the cleaning fluid passage as a spray. In the
second position, the switching mechanism initiates the
pressurization source such that air and expended cleaning fluid is
drawn into the vacuum passage.
[0006] It is a feature of the invention to provide a cleaning
device for fiber optic connectors that is portable and is able to
be moved easily.
[0007] It is a feature of the invention to provide a cleaning
device for fiber optic connectors that is capable of chemically
and/or mechanically cleaning a fiber optic connector.
[0008] It is a further feature of the invention to provide a device
for application of a surface treatment (i.e. coating).
[0009] It is a feature of the invention to provide a cleaning
device for fiber optic connectors that is easy to use and
inexpensive to manufacture.
DRAWINGS
[0010] These and other features, aspects and advantages of the
present invention will become better understood with reference to
the following description and appended claims, and accompanying
drawings wherein:
[0011] FIG. 1 is an internal side view of an embodiment of the
cleaning device for fiber optic connectors;
[0012] FIG. 2 is a side internal view of an embodiment of the
cleaning head;
[0013] FIG. 3 is a functional block diagram of an embodiment of the
cleaning device for fiber optic connectors; and,
[0014] FIG. 4 is a flow chart depicting the operation of an
embodiment of the cleaning device for fiber optic connectors.
DESCRIPTION
[0015] The preferred embodiment of the present invention is
illustrated by way of example below and in FIGS. 1-4. As shown in
FIG. 1, the cleaning device for fiber optic connectors 1 includes a
cleaning head 100, a cleaning fluid reservoir 200 for holding
cleaning fluid 210 (the cleaning fluid 210 may be, but without
limitation, a cleaning solvent, a polish, a surface treatment, or
any type of cleaner), a pressurization source 300 and a switching
mechanism 400. As seen in FIG. 2, the cleaning head 100 has a
cleaning fluid passage 105 and a vacuum passage 110. The switching
mechanism 400 has at least a first position and a second position.
In the first position, the switching mechanism 400 initiates the
pressurization source 300 such the cleaning fluid 210 in the
cleaning fluid reservoir 200 is pressurized and the cleaning fluid
210 leaves the cleaning fluid reservoir 200 and enters the cleaning
head 100 via the cleaning fluid passage 105 and exits the cleaning
head 100 via the cleaning fluid passage 105 as a spray. In the
second position, the switching mechanism 400 initiates the
pressurization source 300 such that ambient air and expended
cleaning fluid 210 (specifically expended cleaning fluid 210 that
is on or near the fiber optic connector being cleaned) is drawn
into the vacuum passage 110. Optionally, the vacuum passage 110 can
lead directly to a waste reservoir 250, or as shown in FIG. 1, the
vacuum passage 100 may lead to a vacuum line 251 that leads to the
switching mechanism 400 and then to the waste reservoir 250. In
other embodiments of the invention, any waste fluid/contaminants
may enter the waste reservoir 250 directly or indirectly via the
switching mechanism 400 and/or additional plumbing.
[0016] In the discussion of the present invention, the invention
will be discussed in a fiber optic connector environment; however,
this invention can be utilized for any type of need that requires
use of a cleaning mechanism, such as, but without limitation,
precision cleaning or coating application.
[0017] As seen in FIG. 1, the cleaning device for fiber optic
connectors 1 may also include a housing 50. The housing 50 is
preferably constructed of a lightweight, plastic material such as a
vinyl resin or polyethylene, or any other lightweight plastic
material. The cleaning fluid reservoir 200, the switching mechanism
400 and any additional components may be disposed within the
housing 50. A supply line 75 may allow fluid communication between
the switching mechanism 400 and the pressurization source 300. The
supply line 75 may be a flexible tube or the like.
[0018] The cleaning head 100 (particularly the cleaning fluid
passage 105) and the cleaning fluid reservoir 200 are flowably
connected or in fluid communication via a reservoir tube 215. The
cleaning head 100 is attached to the outside of the housing 50. As
shown in FIG. 1, in one of the embodiments of the invention, the
reservoir tube 215 may flow from the cleaning fluid reservoir 200
into and through the switching mechanism 400 prior to communicating
with the cleaning head 100.
[0019] In operation, when the switching mechanism 400 is in the
first position (or position 1), pressurized gas 60 is supplied to
the cleaning device 1, particularly to the cleaning fluid reservoir
200, via the supply line 75. In the preferred embodiment, as shown
in FIG. 4, the pressurized gas 60 exits the pressurization source
300, and then enters the switching mechanism 400 via the supply
line 75. The switching mechanism 400 controls the flow of
pressurized gas 60 to the cleaning fluid reservoir 200. Pressurized
gas 60 flows from the switching mechanism 400 to the cleaning fluid
reservoir 200 via a reservoir supply line 76.
[0020] Generally, pressurized gas 60 is provided in the form of
standard commercially available CO.sub.2, dry nitrogen, air
cartridges, or any other manner practicable. The pressurization
source 300 may also be, but without limitation, filtered air cans,
dry filtered carbon dioxide or nitrogen cylinders or micropumps.
The pressurization source 300 may be disposed within the housing 50
(not shown) or disposed outside the housing 50 (shown in FIG. 1).
Preferably, if the pressurization source 300 is disposed outside
the housing 50, the cleaning head 100 and the supply line 75 are
disposed at opposite sides of the housing 50.
[0021] As shown in FIG. 4, when the cleaning fluid 210 is
pressurized (the switching mechanism 400 is in the first position
or position 1), the cleaning fluid 210 flows from the cleaning
fluid reservoir 200, through the reservoir tube 215, through the
cleaning fluid passage 105, and out the cleaning fluid passage 105
as a spray. This spray can then be directed towards and applied to
a fiber optic connector. FIG. 3 shows another embodiment of the
invention, whereby, the cleaning fluid 210 passes through the
switching mechanism 400 prior to entering the cleaning fluid
passage 105.
[0022] The cleaning fluid reservoir 200 is disposed within housing
50 of the portable cleaning device 1. The cleaning fluid reservoir
200 is fillable and resealable by a standard screw mechanism or
quick disconnect (not shown), so that the cleaning fluid reservoir
200 can be easily refilled with cleaning fluid 210, and then
resealed. The screw mechanism or quick disconnect must be capable
of sealing securely such that the cleaning fluid reservoir 200 can
store the cleaning fluid 210 therein under pressure. In another
embodiment, the cleaning fluid reservoir 200 may be replaceable,
and/or disposed outside the housing 50.
[0023] The cleaning fluid reservoir 200, the supply line 75, the
reservoir tube 215 and any piping or plumbing connecting the
components are made from materials which are compatible with the
cleaning fluid 210 and pressurized gas 60.
[0024] The switching mechanism 400 controls the flow of pressurized
gas 60 used to push cleaning fluid 210 from the cleaning fluid
reservoir 200 to the cleaning head 100. In the preferred
embodiment, the switching mechanism 400 includes a valve 405 and a
Venturi nozzle 410. As shown in FIG. 4 (another embodiment shown in
FIG. 3), when the switching mechanism is in the second position (or
position 2), the Venturi nozzle 410 produces a vacuum utilizing the
Bernoulli Effect. The vacuum then draws in expended cleaning fluid
(from an area near or at the fiber optic connector) via the vacuum
passage 110, then via the vacuum line 251 to the waste reservoir
250 (as shown in FIG. 1, in one of the embodiments the expended
cleaning fluid may pass through the switching mechanism 400 prior
to entering the waste reservoir 250). The valve 405 controls flow
of pressurized gas 60 to the Venturi nozzle 410 and to the cleaning
fluid reservoir 200. The first position (or position 1) of the
switching mechanism 400 allows flow of pressurized gas 60 to the
cleaning fluid reservoir 200, while the second position (or
position 2) allows flow of pressurized gas 60 to the Venturi nozzle
410. A control device 500 may be electrically connected to and
activates the switching mechanism 400, particularly the valve 405,
to control the flow of pressurized gas 60 to the cleaning fluid
reservoir 200 or to the Venturi nozzle 410. The switching mechanism
400, the control device 500 and the pressurization source 300 are
electrically connected and all in electrical communication with
other.
[0025] The control device 500 preferably includes a power source,
such as a battery 505, and electronics 510, such as an electrical
timer 511. The electronic timer 511 is electrically connected to
the valve 405 of the switching mechanism 400, and sends an
electrical signal to the valve 405 to control the flow of
pressurized gas 60 to the cleaning fluid reservoir 200 or the
Venturi nozzle 410 for predetermined periods of time.
[0026] Preferably, the control device 500 controls (via the valve
405) the flow of cleaning fluid 210 from the cleaning fluid
reservoir 200, so as to furnish cleaning fluid 210 or solvent to
the cleaning head 100 for about a five-second interval (in the
first position of the switching mechanism 400), then switches the
flow of pressurized gas 60 to the Venturi nozzle 410 to create a
vacuum for about five seconds (in the second position of the
switching mechanism 400), or for a period sufficient to vacuum up
and remove cleaning fluid 210 or solvent and contaminants from the
fiber optic connector being cleaned. Thereafter, the control device
500 (via the valve 405) shuts off the flow of pressurized gas 60 to
the cleaning device 1 and resets for another cleaning cycle.
[0027] The switching mechanism 400 can be either electrically or
mechanically controlled.
[0028] Mechanical means can be broken down into manual or
automatic. A preferred mechanical option includes a conventional
multi-position switch actuator 450, as shown in FIG. 1. The
actuator 450 allows a user to change the switching mechanism 400
from the first position to the second position. In another
embodiment of the invention, the switching mechanism 400 may
include a third position, an off position, which turns the cleaning
device 1 off.
[0029] In one of the embodiments of the invention, in operation,
once the switch or actuator 450 (e.g. a trigger or button) is
depressed or put in the first position, cleaning fluid 210 (or
solvent) and pressurized gas 60 are supplied to the cleaning head
100 for a predetermined amount of time by releasing cleaning fluid
210 or solvent and sending compressed or pressurized gas 60 through
the cleaning fluid reservoir 200. As the switch or actuator 450 is
further depressed or put in the second position, the supply of the
cleaning fluid 210 is switched off, and the supply of pressurized
gas 60 is switched to the Venturi nozzle 410, so that the vacuum
remains on for a pre-determined amount of time. After the cleaning
fluid 210 is vacuumed up, the switch or actuator 450 is turned off
and reset for the next utilization.
[0030] In a manual configuration, switching from position to
position is preferably controlled by the operator. In a manual
configuration of the switching mechanism 400, cleaning of fiber
optic connector alignment pin holes, which may eventually
accumulate enough contamination to require cleaning, is possible.
In another embodiment of the switching mechanism 400, a simple,
small electronic pneumatic switch may be utilized, so as to enable
control of the flow of pressurized gas 60.
[0031] The cleaning head 100 may be designed to fit into a hole in
a female connector and/or be adapted to fit into a recess in a
female fiber optic connector. In an embodiment of the invention,
the cleaning device 1 may include an adaptor 150 for a male
cleaning head. The adapter 150 may be removable and include a first
end 151 and a second end 152. As seen in FIG. 1, the first end 151
of the adapter 150 may be attachable to the cleaning head 100, and
the second end 152 fits over (or is attachable to) and on top of a
pin of a male fiber optic connector (not shown) thus allowing for
hermaphroditic cleaning. The cleaning device I may include a number
of different adapter types so that different connector types may be
cleaned.
[0032] The cleaning device 1 may also include a safety interlock. A
safety interlock, may be defined, but without limitation, as a
mechanism that prevents accidental spraying. The safety interlock
could be, but without limitation, a cover, a lock or a trigger grip
which requires a reasonable amount of force to allow spraying.
[0033] By proper selection of the cleaning fluid 210 or solvent,
the anticipated contaminating materials on the fiber optic
connector can be dissolved, as well as the standard foreign
particulates removed, both of which can prevent contact or block
light transmitted within the fiber optic connector. The preferred
embodiment of the cleaning fluid 210 is a cleaner or solvent that
will easily evaporate. A number of formulated/engineered cleaning
fluids or solutions exist which dissolve both petrochemical based
contaminants as well as water based foreign material such as salt
from salt spray. Additionally, these cleaning fluids are preferably
selected to present a limited health hazard as well as being
environmentally friendly.
[0034] A particulate may be added to the cleaning fluid 210. The
particulate may be a polishing compound, and which help remove hard
to remove contaminants. The contaminates are mechanically dislodged
by the particulate(s) so that the cleaning fluid can then remove
them. The particulate may also be a specifically designed
nano-particle; the nano-particle is delivered to the surface so
that it attaches itself to the connector end face providing
improved connector performance such as preventing contaminants from
attaching to the surface.
[0035] When introducing elements of the present invention or the
preferred embodiment(s) thereof, the articles "a," "an," "the," and
"said" are intended to mean there are one or more of the elements.
The terms "comprising," "including," and "having" are intended to
be inclusive and mean that there may be additional elements other
than the listed elements.
[0036] Although the present invention has been described in
considerable detail with reference to a certain preferred
embodiment thereof, other embodiments are possible. Therefore, the
spirit and scope of the appended claims should not be limited to
the description of the preferred embodiment(s) contained
herein.
* * * * *