U.S. patent application number 13/948523 was filed with the patent office on 2013-11-21 for wire cage for a filter bag.
The applicant listed for this patent is William F. Peshina. Invention is credited to William F. Peshina.
Application Number | 20130305669 13/948523 |
Document ID | / |
Family ID | 40511753 |
Filed Date | 2013-11-21 |
United States Patent
Application |
20130305669 |
Kind Code |
A1 |
Peshina; William F. |
November 21, 2013 |
Wire Cage for a Filter Bag
Abstract
An elongated wire cage for insertion in to a known type of
fabric filter (not shown) includes a pair of cage sections secured
together by a pair of couplers attached to respective adjacent ends
of the cage sections and having compatible flanges for securing the
cage sections together thus forming the elongated cage.
Inventors: |
Peshina; William F.; (North
Royalton, OH) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Peshina; William F. |
North Royalton |
OH |
US |
|
|
Family ID: |
40511753 |
Appl. No.: |
13/948523 |
Filed: |
July 23, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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12680599 |
Mar 29, 2010 |
8491688 |
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PCT/US2008/011085 |
Sep 25, 2008 |
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13948523 |
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60960423 |
Sep 28, 2007 |
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Current U.S.
Class: |
55/379 |
Current CPC
Class: |
B01D 2265/02 20130101;
B01D 46/42 20130101; B01D 46/06 20130101 |
Class at
Publication: |
55/379 |
International
Class: |
B01D 46/42 20060101
B01D046/42 |
Claims
1. An elongated tubular cage having an open structure for
supporting a fabric filter in open position for allowing
particulate laden fluids to pass therethrough for separating said
particulate from said fluid, said elongated tubular cage
comprising: a pair of cage sections including a first tubular cage
section and a second tubular cage section; and a first generally
circular coupler attached to an end of said first tubular cage
section and a second generally circular coupler attached to an end
of said second tubular cage section, said first coupler and said
second coupler attachable together for forming said elongated
tubular cage, said first generally circular coupler including a
pair of diametrically opposed radially inwardly directed arcuate
flanges and said second generally circular coupler including a pair
of diametrically opposed radially outwardly directed reversely bent
arcuate flanges, said cage sections connected together for forming
said elongated tubular cage by mating said first and second
generally circular couplers and moving said pair of outwardly
directed reversely bent arcuate flanges to overlie said pair of
inwardly directed flanges.
2. An elongated tubular cage as claimed in claim 1 further
including a locking tab disposed within aligned openings in the
overlying flanges for securing said first coupler to said second
coupler for precluding relative movement thereof.
Description
RELATED APPLICATIONS
[0001] This application is a continuation application of and claims
the benefit of priority to U.S. patent application Ser. No.
12/680,599 having a filing date of Sep. 25, 2008, now U.S. Pat. No.
8,491,688, which is a U.S. National Phase Application under 35
U.S.C. 371 of International Application No. PCT/US2008/011085 filed
Sep. 25, 2008, which claims the benefit of U.S. Provisional
Application Ser. No. 60/960,423 filed Sep. 28, 2007, the entire
disclosures of which are expressly incorporated herein by
reference.
BACKGROUND OF THE INVENTION
Related Art
[0002] It is well known and standard practice for industry to
remove particulate matter from a flowing stream of fluid by passing
the fluid through a filter that entraps the particulates. More
particularly, gases that contain smoke, soot and other particulates
created by processes such as combustion of fossil fuels and the
like, have been passed through woven or unwoven fabric filters for
cleaning such gases prior to further treatment of such gases, or
exhausting such gases to the atmosphere. Such filters may be
referred to as "fabric filters," or "bag filters," and a plurality
of such filters are used to provide "dust collectors" or "bag
houses," in which hundreds, or thousands, of such filter are used
for filtering huge flows of contaminated gases.
[0003] Heretofore, tubular shaped fabric filters, i.e., filter
bags, have been provided with a wire cage placed therein for
maintaining the filter in an open condition for allowing gases to
pass therethrough while trapping particulars on a surface
thereof.
[0004] In the past, it has been traditional that such filter bags,
and wire cages had various designed lengths in a range of up to
approximately 12 to 14 feet (+/-3 to 4 meters), and a large
filtering system, i.e., a bag house, might contain between 3,000
and 5,000 filter bags and related cages. A typical example of a
prior art filter cage is shown in U.S. Pat. No. 6,905,529 granted
on Jun. 14, 2005.
SUMMARY OF THE INVENTION
[0005] Modern day filter systems, i.e., bag houses containing
fabric filters equipped with wire cages, are being designed for
having units of filter bags and wire cages with lengths on the
order of up to ten (10) meters in length and having, perhaps, as
many as 30,000 of such units in a single installation.
[0006] It has been deemed advisable that such foregoing systems
include wire cages that are provided in a plurality of sections
having a lesser length than a full length of 10 meters for
simplifying manufacture, storage, shipping and installation of such
cages, and that such sections include means for connecting and/or
locking the sections together during installation and for allowing
easy separation of, and re-connection of, the cage sections during
maintenance operations such as changing and/or repairing worn
filter bags.
[0007] The present invention successfully provides for connecting
together two or more sections of wire cages to provide a desired
length and including means for locking and unlocking adjacent
sections for forming a rigid, interlocking structure which enhances
and retains true, longitudinal straightness of the assembled
sections.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The foregoing features of the invention will be apparent
from the following Detailed Description of the Invention, taken in
connection with the accompanying drawings, in which:
[0009] FIG. 1 illustrates a pair of elongated, tubular wire cage
sections for a filter bag, the two sections being joined and
secured to each other by a pair of couplers.
[0010] FIG. 2 is an end view of a first coupler having a pair of
radially inwardly extending arcuate flanges.
[0011] FIG. 3 is an end view of a second coupler having a pair of
radially outwardly directed reversely bent arcuate flanges.
[0012] FIG. 4 is a sectional view of the first coupler taken on
line 4-4 of FIG. 2.
[0013] FIG. 5 is a sectional view of the second coupler taken on
line 5-5 of FIG. 3.
[0014] FIG. 6 is a fragmentary view showing the first and second
couplers in assembled condition provided with a locking tab to
preclude relative rotation of the assembled wire cages.
DETAILED DESCRIPTION OF THE INVENTION
[0015] As is illustrated in FIG. 1, the invention is comprised of a
plurality of wire cage sections generally indicated by the numerals
1 and 2 that are connected together at adjacent ends for forming an
elongated cage 3 to be inserted into a woven or non-woven,
elongated, tubular filter bag (not shown) of a type well known in
the prior art.
[0016] The invention is particularly related to a pair of generally
circular first coupler 6 and second coupler 8 attached to
respective adjacent ends of cage sections 1 and 2 that are securely
held together by couplers 6 and 8 in a manner to be hereinafter
described.
[0017] First coupler 6 is shown in FIGS. 2 and 4 and includes a
pair of radially inwardly extending, arcuate flanges 10 and 12. The
two flanges 10 and 12 are shown as being preferably diametrically
opposed from each other but it is to be understood that the
invention may be practiced by using a single flange, or more than
two flanges spaced about the circumference of coupler 6.
[0018] Second coupler 8 is shown in FIGS. 3 and 5 and includes a
pair of radially outwardly directed reversely bent arcuate flanges
14 and 16. Upon mating of couplers 6 and 8, relative rotation will
cause flanges 14 and 16 to overlie flanges 10 and 12 to provide an
inter-connection for the two adjacent cage sections 1 and 2 thereby
providing the elongated cage 3 as is shown in FIG. 1.
[0019] FIG. 6 is a fragmentary view of cage sections 1 and 2
connected together by coupler 6 and coupler 8. A locking pin, or
ring, or tab 20, may be inserted, for example, through aligned
openings or holes in the flanges 10 or 12 and 14 or 16 for
precluding inadvertent, relative rotation of the adjacent cages
during use.
[0020] In view of the foregoing descriptions and the accompanied
drawings, the best mode of the invention has been disclosed and the
features thereof will be understood by persons of ordinary skill in
the related art. It is to be understood however that the foregoing
descriptions are by way of illustration, and the invention is not
necessarily limited thereto. Modifications and variations will be
apparent from the disclosure and may be resorted to without
departing from the spirit of the invention as those of skill in the
art will readily understand. Accordingly, such variations and
modifications are considered to be within the purview and scope of
the invention as defined in the following claimed subject
matter.
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