JPH02184384A - Bag structure for handling hazardous material etc. - Google Patents

Abstract

PURPOSE: To assure the safety of work by fixing the open top edges of plural bags interconnected via perforations to the circumference of the asbestos coating of piping and accepting hazardous materials, then discretely removing the bags from the piping. CONSTITUTION: To remove the asbestos coating 14 of the piping 14, the open top edges 20, 22 of the plural bags 26 which consist of sheet materials 18 superposed at a bottom edge 24, are closed by sealing lines 28 on both sides and are connected via the perforations 30, 32 are superposed on each other around the piping 12 and are taped. An operator inserts the arms into arm holes 36 disposed on one side of the bag 26, removes the asbestos coating 14 within the bag 26, houses the asbestos coating as it is into the bag 26 and seals the bag by removing the open top edges 20, 22 from the circumference of the piping 12 and superposing the edges on each other after finishing the work. The bag is thereafter separated by the perforations 30, 32 from the adjacent bags 26. The safety is thus improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates generally to the technology of bags, such as plastic bags; The present invention relates to a bag device for removing outer jackets.

BACKGROUND OF THE INVENTION The present invention relates to a casing device that facilitates the safe handling of hazardous materials and is of particular importance for removing sheathing from piping or similar elongated structural means. There is no limit to whether you hold it or not.

Acids have also received attention in recent years due to the significant area of long-term problems and health and safety hazards that arise when handling asbestos materials. In particular, hundreds of professional chefs are in operation at any given time to remove asbestos material from buildings because airborne asbestos fibers pose a health risk.

One area where asbestos materials have been widely used is in pipes and valves within buildings, such as piping from boilers. However, if the envelope is to disintegrate in any case as a result of physical damage or aging,
The outer covering must be removed. This stripping work is
It generates a large amount of asbestos dust in a confined space, which poses a considerable health risk. Protection of workers is extremely important and generally required by law.

Traditionally, asbestos containment in jobs involving elongated structures such as piping has typically been performed using the Crohn method.

He used a device called a bag. This is an example of a bag.
．． 270 issue and December 1986 2 +1 Natale
No. 4,626,296. A
Tkinson's containment system was one of, if not the first, commercially available product for removing hazardous materials from pipework. This clone
The bag is now r (quite typical of all clone bags available) and has a shell made of plastic sheet material that is transparent at least in the area adjacent to the pipe. It is sealed along the sides and the open top or wraps around the pipe so that it can be joined to or taped to the pipe. It is sealed around the sleeve or the armhole of the bag. The operator inserts his or her hand or arm into the space inside the bag and allows the jacket to be stripped from the pipe, causing the stripped jacket to drop to the bottom of the bag. When the entire length of the pipe is stripped and surrounded by a bag, the open top of the bag is closed and the stripped ashest jacket is safely contained for proper disposal.

As mentioned above, clots bags of the above nature are very popular in the removal industry, and now they are equipped with a hunt clots at the end of the internal screen, or have an internal pouch for 4 bags. It has features such as a cut in the bag and the insertion of a vacuum hose to maintain a light vacuum during the stripping process or to allow the bag to be disposed of before closing. However, the general principle of providing such bags as individually handled and attached devices is fairly well known throughout the ashest removal industry.

A major problem when using Krotz bag equipment of this nature is the excessive amount of time it takes to attach individual bags to pipe sections before the stripping operation begins.

It should be appreciated that, being entirely handmade, these bags are usually only 4 to 5 feet wide.

However, the length of the piping from which the jacket has to be removed is many times greater than the width of the individual bag. Apparently, the process of pulling a clots bag from a source or container, wrapping the bag's hand around a short section of pipe, and properly securing the bag to the pipe actually removes the bag from that short section of pipe. ) - It can take almost as much time as it takes to remove the mantle. This is extremely inefficient work in an industry where efficiency is paramount. For example, facilities such as schools have limited budgets or funds available for ashest removal. Unless funds are used fairly efficiently, children will be constantly exposed to contamination.

The present invention is directed to the above problems and, more particularly, by installing a continuous length of interconnected bags around an elongated structure, such as a pipe, in a single operation, and removing the jacket from the pipe for that length. The object of the present invention is to provide a unique bag device that allows for continuous removal regardless of the size of the bag.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a new and improved apparatus for removing encrustations, such as hazardous materials, from structural means, such as piping.

Broadly speaking, the apparatus of the present invention comprises two longitudinal sides of sheet material sealed together along the bottom longitudinal edge. Seal means are provided spaced longitudinally of the sheet material between these sides to define a plurality of individual interconnected bag sides. Opening means are provided along the top edge of the sheet material for securing the sheet material around the pipe and for receiving the jacketing stripped from the pipe. The sheet material has a means by which any one bag can be easily separated from any adjacent bag, thereby allowing the storage of interconnected bags or materials in a side-by-side configuration from a continuous length of pipe. Hazardous materials can be stripped continuously, and individual bags can be sequentially separated and removed from the piping without continuing the stripping operation.

More particularly, the apparatus comprises providing an elongated sheet material with folded bottom edges interconnecting along its length to define a sealed bottom and an open top of a side-by-side row of bags. It forms an open apical margin. The folded sheet material is provided with spaced sealing means to seal the sides together to form a plurality of individual bags. In an embodiment of the invention, the sealing means is provided by pairs of spaced heat seal lines, each forming a side edge of an adjacent bag. By means of a separating means or a perforation in the sheet material, an example is given by a perforation line extending between the leading edges of the sheet material, the open edges, and located between spaced apart seal lines. Therefore, every bag can be separated very easily from its neighbor.

Each interconnected or separable bag is individually equipped with a globe f-stage to provide access to the interior of the bag, and the sheet material is transparent at least in the area adjacent to the piping. It has become.

It will be appreciated that the apparatus described above may be adapted to provide the interconnected batter in rolls and at the time of use. With any equipment, the operator may measure the length of the pipe whose asbestos sheathing is to be removed and tear it into as many bags as necessary to cover the entire length of the pipe. As the operation progresses and the jacket is successively stripped along the length of the pipe, the filled bags can be successively removed from the pipe. The time lost with conventional equipment for separately attaching and removing individual bags from tubing is dramatically reduced by the apparatus of the present invention.

Other objects, features, and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

The features of the invention that are considered novel are particularly pointed out in the appended claims. The invention, together with objects and advantages thereof, may be best understood by reference to the following description taken in conjunction with the accompanying drawings. In addition, in the accompanying drawings, reference numbers such as turning indicate similar components.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to FIG. It is something that was taken away. It should be understood that the term "envelope" is used here in a general sense. Normally, the piping 12 is covered with Amehesu 1 to fiber wrapping 14, which serve as insulation materials, and is covered with a protective jacket l-16 made of this insulation material or paper, cloth, DESO, etc. It is sometimes called the mantle. Additionally, the present invention is shown herein as having particular use in the asbestos stripping industry for removing asbestos casing from piping, or as a continuous length interconnected yet separable, side-by-side bag structure. The novel concept of the present invention to provide a casing may have various other applications in the general sense of removing sheathing from elongated structural steps.

The device of the invention is intended to provide an elongated sheet material, not shown generally at 18, having two sides 20.22 sealed to each other along a longitudinal bottom edge 24; Further, as generally indicated by arrow rAJ, opening means is provided along the top edge.

When the apparatus is used to remove jacketing from a structure such as a pipe, the entire top of the elongated sheet material is preferably opened as shown and the sheet material is wrapped around the pipe as shown by arrow rBJ. Position the constructed complex.

Generally, the present invention seals the sides 20.22 of the sheet material 18 to the sides W spaced along the length of the sheet material 18 to form a plurality of pockets or separate side-by-side bags (
26).

- In detail, sealing means are provided between the sides 20.22 by a pair of spaced apart heat seal lines 28 forming the side edges of each adjacent bag 26.

In the illustrated embodiment, the seal line 28 actually consists of inverted U-shaped seal line legs that meet at the top, such as at 28a. Additionally, the six pairs of seal lines forming the side edges of adjacent bags converge towards each other in the direction of the bottom edge 24 and widen downwardly and outwardly from each individual bag portion of the elongated sheet material 18. It has a skirt-like shape IE.

The invention generally makes it easy to remove any one bag 26 from any adjacent bag in order to access various lengths of piping or to remove individual bags sequentially, such as in a series. Material 1
It is also intended to be installed at 8. - Layer Specifically, a perforation line 30 is formed in the sheet material 1 between the seal lines 28, and a perforation line 32 is formed in the sheet material extending from the top 28a of the seal line to the open top edge of the sheet material. The perforation line 30 is connected to the perforation line 32 at the joint portion 34. Thus, the sheet monthly is machined in the transverse direction between each individual bag or hey portion 26 between the closed bottom edge 24 and the open top edge.
This means that it has been formed.

One side of the sheet material, i.e. each Clothes bag 26
The side portion 20 shown has a pair of armholes 36.
It is formed. A sleeve-like cloat 38 is sealed to the sheet material at 40 around the armhole 36 to allow the operator to extend his arm into the interior of each bag. Additionally, a pouch 42 is provided inside each bag to accommodate a worker or other equipment used in stripping the jacket lO from the pipe 12. Additionally, the sheet material is marked with position marks as shown at 44 to allow notches to be made in each bag to insert a hose for spraying wetting solution against the jacket, piping, and the bag. You can either create a light vacuum inside the bag or insert a vacuum tune to completely bleed the bag.

Sheet material 18 must be transparent at least in the area adjacent to the piping. As contemplated herein, sheet material 18 may be made entirely of a transparent plastic material, such as polyethylene.

In use, sheet material 18 may be wound into a roll. For example, 25 bag parts 26 (4 each
A length of sheet material consisting of 1~=12 meters wide) will cover 100 feet (30 meters) of pipe. The operator may measure the length of piping that must be unsheathed and tear off as many bag sections as necessary to cover the entire length of the piping. If the pipe is 24 feet long (7.2 meters), then 6
The same goes for the following. Rather than picking up individual bags around the pipe as is currently done in the industry, the entire interconnected bag is installed around the pipe in one operation. This is done by spreading the sheet material along its open top edge as shown by arrow A in Figure 1, folding or wrapping the free edges of sides 20. top of the pipe,
That is, a seal is applied to the side opposite to the bag 26. Such taped and sealed edges are shown at 46 in second M. The ends of the bags surrounding the pipes may be taped around each bag at 48 (FIG. 2) as shown. 10 coats or 26 bags
Once the bag has been completely stripped from the covered pipe section, the bag is full and can be separated from adjacent bags and disposed of before continuing work down the length of the pipe. .

On the other hand, rather than tape the joints of adjacent bags, the device of the present invention performs a unique peeling operation that is impossible with the currently used "individual bag" processing. I can do what I want to do. One of the problems with using individual bags is that when the individual bags are attached to or removed from the pipework, unwanted asbestos fibers can be removed at the joint (for example, in the area of tape 48 in Figure 2). The goal is to prevent it from floating in the air. At this time, when the outer cover 16 is removed during the stripping operation, the inner fibrous material 14 (FIG. 1) is exposed, which may cause a dangerous pull. The apparatus of the present invention, which provides continuous lengths of interconnected bags, allows a plurality of interconnected bags of a given length to be installed around a given length of tubing only at both ends. Ru. The worker proceeded with the work of stripping the outer covering from the pipe inside the bag at the end, and removed the seal line 28.
a (FIG. 1) A short stripping operation can be carried out along the tubing in the adjacent bag through the area in the interconnected bags above. When finished, this adjacent bag can be taped around the 1" clean short section of tubing, and then the next bag can be stripped down the length of the tubing. In fact, while one worker advances to the bag next to this to continue stripping along the entire length of the pipe, which is already covered by a row of interconnected bags, another worker follows closely behind and cleans it. Filled bags can be removed from the drained piping in a sequential manner, which is not possible with conventional individual bag methods.

The present invention also contemplates a method of forming the sheet material 18 into the above-described phase 77 connection bag structure. - Layers Specifically, a sheet of elongated sheet material, such as polyethylene, is prepared and then folded along its length to form the two sides 20,22.

The bent portion becomes the bottom edge 24 of the seal. This can be done with a continuously movable sheet folding machine. The folded sheet material is then fed to one or more presses where a heated platen forms a seal line 28.28a and a perforation line 30.32 to continuously fold the folded sheet material. Divide the container into interconnected bag parts. Next, the crawler 38 is inserted into the armhole 3 in individual stages.
A pouch 42 is formed by heat-sealing around the flanges 6 and heat-sealing the flanges on three sides,
The entire interconnected bag structure is rolled and packaged before use.

Another method is to extrude the plastic sheet material into a flat tube, as is done with common trash bags. The tune is then heat sealed and perforated, forming spaced seal lines and perforations to form two adjacent sealed sides of adjacent bags. Next, cut one side of the elongated piece of tune material to form an open edge like a fillet.

A cloak and pouch are then formed together with each bag "section."

It is to be understood that the invention may be embodied in other specific forms without departing from its spirit or essential nature. Accordingly, the illustrated embodiments are to be considered in all respects as illustrative and not in any limiting sense.

[Brief explanation of the drawing]

FIG. 1 is a fragmentary perspective view illustrating a device of the invention containing a plurality of phase-q connected bags with respect to the tubing surrounded by a jacket material. FIG. 2 is a fragmentary front view of one of the interconnect bags that has been accessed around the piping. FIG. 3 is an enlarged location view taken approximately along line 3--3 in FIG. 2. FIG. 4 is an enlarged fragmentary horizontal fragment view taken generally along line 4--4 of FIG. In the drawings, 10... Outer cover, 12... Piping, 14
... Asbestos fiber wrapping, 16...-Protective seal, 18... Sheet material, 20.22... Side part, 24... Bottom edge, 26... Bag, 28... Seal line, 30.32...Sewing machine 11 line, 34...Joining part 36...Armhole, 38...Gloof, 42
...pouch

Claims (41)

[Claims] (1) An apparatus for removing encrustations, such as hazardous materials, from elongated structural means, such as piping, having two sides sealed to each other along one longitudinal edge and opposite comprising a continuous length of sheet material that is substantially open along a longitudinal edge of the side, the open edge being secured around the piping and adapted to receive hazardous materials from the piping;
the two sides are sealed to each other at intervals along the length of the sheet material to form individual bags, which bags are in contact with each other in alignment with said sealed longitudinal edges forming the bottom thereof. connected, and the sheet material has means for readily separating any one bag from any adjacent bag, thereby properly securing the plurality of interconnected bags to the piping along said open top edge. 1. A device characterized in that the device is capable of being removed separately from the piping. 2. The apparatus of claim 1, wherein the sealed longitudinal edge is constituted by a fold in the elongated sheet material. 3. The apparatus of claim 1, wherein said two sides are sealed at said spacing by sealing means extending transversely to said edges. 4. The apparatus of claim 3, wherein said sealing means includes a heat seal between two sides of the sheet material. 5. The apparatus of claim 3, wherein said sealing means includes a pair of spaced apart sealing lines, each sealing line defining an adjacent side of the bag. . (6) The apparatus of claim 5, wherein each pair of said seal lines converge toward a longitudinal sealed edge of the sheet material, and the sides of the bag flare outwardly in a skirt-like manner. A device characterized by: 7. The apparatus of claim 6 wherein said means for separating said bags includes perforation means in the sheet material between spaced apart seal lines. 8. The apparatus of claim 4, wherein said sealing means extends from the sealed longitudinal edge to a position proximal to the open edge and provides a separate sheet of material for attachment to the pipework. device to do. 9. The apparatus of claim 1, wherein said means for separating said bags includes perforation means in the sheet material. (10) A device according to claim 1, characterized in that it includes glove means attached to at least one of said sides of each bag to provide access to the interior of the bag. Device. 11. The apparatus of claim 1, wherein the sheet material is transparent at least in areas adjacent to the piping. (12) an apparatus for removing an envelope from an elongated structural means, the apparatus comprising: two longitudinal sides of a sheet material sealed to each other along a longitudinal bottom edge; a sealing means disposed between the sides forming the sides of the plurality of individual interconnected bags; and a sealing means at the top edge of the sheet material secured about the structural means and adapted to receive an envelope from the structural means. and an opening means for facilitating separation of interconnected bags of sheet material, thereby allowing a plurality of interconnected bags to be properly attached to the structural means along said open top edge. A device characterized in that it is attached but capable of being separately removed from the structural means. 13. The device of claim 12, wherein the bottom edge is sealed between two sides by a fold of sheet material. 14. The apparatus of claim 12, wherein the two sides are sealed at the spacing by sealing means extending generally transversely to the edges. 15. The apparatus of claim 14, wherein said sealing means includes a heat seal between two sides of the sheet material. 16. The apparatus of claim 14, wherein said sealing means includes a pair of spaced apart sealing lines, each sealing line defining an adjacent side of the bag. . 17. The apparatus of claim 16, wherein said means for separating said bags includes perforation means in the sheet material between spaced seal lines. 18. The apparatus of claim 16, wherein each pair of said seal lines converge toward a longitudinal sealed edge of the sheet material, and the sides of the bag flare outwardly in a skirt-like manner. A device characterized by: 19. The apparatus of claim 14, wherein said sealing means extends from the bottom edge to a position proximal to the open edge and provides a separate sheet of material for attachment to piping. 20. The apparatus of claim 12, wherein the means for separating the bags includes perforation means in the sheet material. (21) A device according to claim 12, characterized in that it includes glove means attached to at least one of said sides of each bag to provide access to the interior of the bag. Device. 22. The apparatus of claim 12, wherein at least one of the sides of the sheet material is transparent, at least in the area adjacent the piping. (23) an apparatus for removing an envelope from an elongated structural means, the apparatus comprising: two longitudinal sides of a sheet material sealed to each other along a longitudinal bottom edge; a sealing means disposed between the sides forming the sides of the plurality of individual interconnected bags; and a sealing means at the top edge of the sheet material secured about the structural means and adapted to receive an envelope from the structural means. and opening means by which a plurality of interconnected bags are suitably attached to the structural means along said open section edge, but permitting individual removal from the structural means. device to do. 24. The device of claim 23, wherein the bottom edge is sealed between two sides by a fold of sheet material. 25. The apparatus of claim 23, wherein the two sides are sealed at the spacing by sealing means extending generally transversely to the edge. 26. The apparatus of claim 25, wherein said sealing means includes a heat seal between two sides of the sheet material. 27. The apparatus of claim 25, wherein said sealing means includes a pair of spaced apart sealing lines, each sealing line defining an adjacent side of the bag. . (28) The apparatus of claim 27, wherein the seal lines of each pair converge toward a longitudinal sealed edge of the sheet material, and the sides of the bag flare outwardly in a skirt-like manner. A device characterized by: 29. The apparatus of claim 25, wherein the sealing means extends from the sealed longitudinal edge to a position in front of the open edge and provides a separate sheet of material for attachment to the pipework. device to do. (30) A device according to claim 23, characterized in that it includes glove means attached to at least one of said sides of each bag to provide access to the interior of the bag. Device. 31. The apparatus of claim 23, wherein the sheet material is transparent at least in areas adjacent to the piping. (32), an apparatus for removing jackets, such as hazardous materials, from elongated structural means, such as piping, comprising a continuous length of sheet material, the sheet material being constituted by folds along its entire length; the sides provide an elongated closed bottom edge and an elongated open top edge, the open top edge providing a means for receiving hazardous materials from the piping; The sides are sealed to each other at intervals along the length of the sheet material by spaced heat seal lines extending generally transversely to the top and bottom edges. each pair of sealing lines constitutes a separate bag, each pair of sealing lines constitutes the sealing edge of the adjacent bag, the longitudinal closed bottom edge constitutes the bottom of the bag, and the sealing lines of each pair constitute the sealing edge of the adjacent bag; a separate sheet of material for attachment to the piping, the sheet material having perforation means between the top and bottom edges and between each pair of seal lines; A device characterized in that any one bag can be easily separated from any adjacent bag. (33) A device according to claim 32, characterized in that it includes glove means attached to at least one of said sides of each bag to provide access to the interior of the bag. Device. 34. The apparatus of claim 32, wherein the sheet material is transparent at least in areas adjacent to the piping. 35. The apparatus of claim 32, wherein the seal lines of each pair converge toward a longitudinal sealed edge of the sheet material, and the sides of the bag flare outwardly in a skirt-like manner. A device characterized by: (36) A method of fabricating a plurality of separably interconnected bags from sheet material to remove an envelope from an elongate structural means, the method comprising: providing an elongate sheet material with longitudinal folds; two sides, a closed bottom edge receiving the jacket and an open top edge adapted to be attached around the structural means; forming a plurality of individual side-by-side bags; perforating the sheet material between adjacent bags to facilitate separation of any one bag from any adjacent bag; whereby a plurality of interconnected bags can be suitably attached to the structural means along said open top edge, but can be individually removed from the structural means. Method. 37. The method of claim 36, wherein the two sides are sealed at the spacing by sealing means extending generally transversely to the edge. 38. The method of claim 37, wherein said sealing means is formed by heat sealing. 39. The method of claim 38, wherein said sealing means comprises a pair of spaced apart sealing lines, each sealing line defining an adjacent side of the bag. how to. 40. The method of claim 39, wherein the perforation is performed between spaced seal lines. 41. A method according to claim 36, characterized in that the sheet material is rolled into a roll to provide a source of interconnect bags.