Disposable safety garment with improved doffing and neck closure

Information

  • Patent Grant
  • 9248322
  • Patent Number
    9,248,322
  • Date Filed
    Tuesday, December 17, 2013
    11 years ago
  • Date Issued
    Tuesday, February 2, 2016
    8 years ago
Abstract
Nonwoven safety garments are described. Features of the stitching of some embodiments limit the number of particulates emitted from seams between cut edges. Attachments features may be included on the garments to enable secure, external attachment of measuring equipment. Doffing features, such as loops, are provided to help the wearer safely remove the garment, either by helping her pull off part or all of the garment or by starting to separate closure devices. In some embodiments, a repositionable closure on a neck flap covers the neck up to the bottom of a face mask or respirator, and a grasping tab helps the wearer safely open the repositionable closure and the neck flap.
Description
TECHNICAL FIELD

The present invention relates generally to the field of safety apparel, and more specifically to safety garments for use in various environments, including for example environments containing actual or potential radiological, biological, or light-splash hazards, the apparel having, in various embodiments, reduced particulate shedding properties, attachment facilities, reinforced points of wear or contact contamination risk, and ease-of-safe-removal characteristics.


BACKGROUND

Safety garments, such as disposable smocks, jumpsuits, gloves, shoe coverings, and hair coverings, are required apparel for the performance of many jobs. Some of the jobs requiring safety garments are performed in clean room environments, wherein the introduction of foreign matter must be minimized. For example, technicians in certain sensitive medical fields dealing with infectious matter, aerospace researchers assembling interplanetary probes, and material scientists developing and manufacturing ultra-pure materials all wear safety garments in clean room environments. The safety garments in some situations perform the dual function of protecting the wearer from the potentially hazardous materials he is working with as well as preventing unwanted matter from the wearer's person from contaminating his work product. In other situations, safety garments protect the worker from exposure to dangerous materials, such as radioactive, chemical, and biological hazards.


Safety garments for use in clean room environments are typically made from nonwoven disposable materials, such as from sheets of spunbond/melt blown/melt blown/spunbond (SMMS) material and the like. Such sheets of material are cut into patterns and stitched together to form desired safety apparel. Typically, as these garments are intended to be disposable and the focus is on their functionality and not aesthetic appeal, little attention is paid to the hemming and stitching. The “as cut” edges are thus exposed. However, in clean room environments where contaminant levels in the parts per million or even parts per billion would be too high, such exposed cut edges present genuine sources of potential particulate contamination.


Moreover, as these garments are intended to be disposable, little effort is made to provide durable stitching. The prevalent attitude is that a garment intended to be worn for just a few hours does not require superior stitching. However, in a clean room situation or a hazardous environment such as asbestos remediation or nuclear demolition and decontamination, seam separation is not only a potential source of particulate evolution in and of itself, but also produces a pathway from the exterior to the interior of the garment through which potentially hazardous material may flow.


Many workplace environments from industrial settings to hospitals hold the potential to expose workers to various types of radiation. One problem faced by workers in such environments is how to safely perform tasks while monitoring their exposure to potentially harmful radiation. Often such protective measures include the use of personal radiation measuring devices referred to as “dosimeters” along with protective garments.


Traditionally, personal dosimeters have been attached to a worker's protective garments using tape or some other improvised means. Under normal working conditions, such informal attachment methods often lead to the detachment and potential loss or damage to the dosimeter device. Additionally, such protective garments are often bulky and difficult to remove safely when they are no longer needed.


In addition, while most protective apparel is used with full-faced respirators to safeguard against respiratory particulate or chemical vapor inhalation in environments where minor skin contamination is not a major health issue, but presents an inconvenience (e.g., spray painting), radiological workers must maintain a contamination-free environment inside the protective “envelope” of their protective clothing and guard against contamination while doffing the protective clothing after the work in a contaminated zone is completed. Hence, they cannot overlook any types of gaps or openings to the suit.


Heretofore the solution to bridging the gap typically formed by the closed zipper and hood underneath the chin and respirator has been to apply layers of duct, vinyl, masking or other tapes over the gap and surrounding the respirator mask to ensure a tight seal. This requires a safety professional to conduct audits of personnel entering contamination areas to ensure adequate application of the tape and correct positioning. It also requires skillful and careful removal of the contaminated tape around the bare neck upon exiting the contaminated work area while the personnel are still wearing potentially contaminated protective gloves, and risks exposing the worker's neck to that cross-contamination, creating a Personal Contamination Event (PCE) that may risk the worker's health and have to be reported to a regulatory agency.


Traditional designs for this level of protective apparel account for a large portion of accidental self-contamination or PCEs each year. Even if a front zipper is closed to the end of its travel path, and the hood is applied over the head and around the face, many of those designs leave a gap in the neck area below the chin. Often, tape is wrapped around the respirator or other face mask to cover that gap. When the person is wearing a respirator, this gap can easily allow contaminants against the skin, which in radiological or biological environments is considered a recordable accident by the Occupational Safety & Health Administration (OSHA). Safe removal of the apparel is often challenging, sometimes requiring a partner or observer and/or a mirror to help the wearer find the end of the tape to begin the sequence of doffing the hood and respirator, running the risk of self-contamination.


There thus remains a need for an improved safety garment that is more durable and less prone to particulate shedding. There is also a need for protective garments to which personal dosimeter devices and other monitoring equipment can be effectively attached, as well as a garment that can be removed quickly, safely, and easily, and withstands high-wear regions such as elbows and knees. There is a further need for garments that protect the wearer from radiological, environmental, and other contaminants, both during exposure and during doffing of the garment. The present disclosure addresses these needs.


SUMMARY

One aspect of the present disclosure relates to a safety garment. Some embodiments include at least one sheet of nonwoven fabric having at least one cut edge, a plurality of stitches formed in the sheet(s) of nonwoven fabric to define a garment; and hemming formed at cut edges. The nonwoven fabric is preferably formed from spunbond/melt blown material. The stitching is characterized by an optimized stitch density of between ten and twelve stitches per inch. The garment includes at least one attachment feature for holding or attaching one or more dosimeters to the garment. These may be positioned to allow the wearer to grasp them and tear open certain seams, partially or completely open a zipper, or otherwise remove the garment. In various embodiments, the garment also includes an improved neck closure that simplifies donning of the garment and aids the wearer's effort to doff the suit while avoiding self-contamination events. Some embodiments have reinforced knees and elbows for additional protection against contact with hazardous materials.


One object of the present invention is to provide an improved safety garment. An object of some embodiments is to facilitate doffing of the garment with a reduced risk of contaminating oneself. Related objects and advantages of the present invention will be apparent from the following description.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 is a perspective view of a safety garment in a first embodiment.



FIG. 2 is an enlarged exploded partial view of a hemmed edge of the embodiment of FIG. 1.



FIG. 3 is a perspective view of a safety garment in a second embodiment of the disclosed technology.



FIG. 4 is a perspective view of a safety garment in a third embodiment of the disclosed technology.



FIG. 5 is a perspective view of a safety garment in a fourth embodiment of the disclosed technology.



FIG. 6 shows a protective garment according to a fifth embodiment of the disclosed technology.



FIG. 7 shows a protective garment according to a sixth embodiment of the disclosed technology.



FIG. 8 shows a closure mechanism used in the fifth embodiment.



FIG. 9 shows a protective garment according to a seventh embodiment of the disclosed technology.



FIG. 10 shows an alternative design for the hood and upper body portions of the garment of FIG. 8.



FIG. 11 shows another alternative design for the hood and upper body portions of the garment of FIG. 8.





DESCRIPTION

For the purposes of promoting an understanding of the principles of the disclosure and presenting its currently understood best mode of operation, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, with such alterations and further modifications in the illustrated embodiments and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art.



FIGS. 1 and 2 illustrate a first embodiment of the disclosed technology, a reduced particulate shedding disposable nonwoven safety garment 10. In this embodiment, safety garment 10 is formed as a smock. Safety garment 10 is preferably made from spunbond/melt blown/melt blown/spunbond (SMMS) material, spunbond/melt blown/spunbond (SMS) material, or the like, and includes double-folded and hemmed edges 12. The edges 12 are folded such that all cut edges of the non-woven material are double-folded under so as not to be exposed. Non-exposure of the edges 12 thus greatly reduces the potential for generation of shed particles where the material was cut. The seams 16 are stitched with an optimization of the number of stitches per inch (SPI), increased to 10-12 SPI over the standard 6-8 SPI. Stitch densities of 10-12 SPI have been found to be better than the lower range, as densities greater than 12 SPI weaken the non-woven material via excessive perforation and those less than 10 SPI provide a looser and weaker hem, such that particulate shedding is not minimized.



FIG. 3 illustrates a second embodiment of the present invention, a jumpsuit 14 made from spunbond/melt blown/melt blown/spunbond (SMMS) material, spunbond/melt blown/spunbond (SMS) material, or the like. The jumpsuit 14 includes twice-folded and hemmed edges 12. As in the first embodiment, the edges 12 are folded such that all cut edges of the non-woven material are double-folded under so as not to be exposed. The seams 16 in this embodiment are stitched with an increased stitch density of 10-12 SPI over the standard 6-8 SPI. Seams are also bound with additional welting or other integrative material to reinforce the seams against contamination. The garment also includes foot coverings 18 that are preferably stitched to the garment but may alternately be individually formed and attached, such as by an elastic band stitched into the hem at the foot opening. The garment 14 further includes an excess of material in the armpit 20 and groin/seat area 22, to minimize the risk of accidental tearing that might generate additional particulate matter that enters into the environment, and might expose the wearer to environmental hazards.


In practice, the garments 10 and 14 are often made by cutting one or more sheets of nonwoven material into a desired safety garment pattern. Simple patterns (e.g., shoe coverings) may require a single sheet; more complex patterns (e.g., smocks, jumpsuits, and the like) may require two or more sheets of varying size. The sheet(s) is/are then stitched together to define a garment 10. The edges of the garment 10 are then hemmed. All cut edges are twice folded and hemmed under to prevent exposure of any cut edges that could increase the likelihood of particulate shedding. All stitching in these illustrative embodiments is characterized by a stitch density in the range of 10 to 12 stitches per inch.



FIG. 4 illustrates a third embodiment garment 24. The garment 24 of FIG. 4 is similar to that described in FIG. 1, but with the addition of loops 30 affixed to the sleeve 32 portion of the garment 24, to engage a wearer's hands so as to keep the garment 24 positioned about the wearer's body. In this embodiment, as in the foregoing embodiment of FIG. 1, the safety garment 24 is formed as a smock and is preferably made from spunbond/melt blown/melt blown/spunbond (SMMS) material, spunbond/melt blown/spunbond (SMS) material, or the like. The garment 10 includes double-folded and hemmed edges 12. The edges 12 are folded such that all cut edges of the non-woven material are double-folded under so as to not be exposed. Non-exposure of the edges 12 thus greatly reduces the potential for generation of shed particles where the material was cut. The loops 30 are likewise folded over and stitched such that there are no exposed cut edges. The seams 16 are stitched with an optimization of the number of stitches per inch (SPI), increased to 10-12 SPI over the standard 6-8 SPI.



FIG. 5 illustrates a fourth embodiment, a jumpsuit 34 similar to that of FIG. 3 with the addition of loops 30 extending from the sleeve portion 32 of the garment 34 to engage the hands of a wearer (similar to the embodiment of FIG. 4). The jumpsuit 34 is likewise preferably made from spunbond/melt blown/melt blown/spunbond (SMMS) material, spunbond/melt blown/spunbond (SMS) material, or the like. The jumpsuit 34 includes twice-folded and hemmed edges 12. As in the first embodiment, the edges 12 are folded such that all cut edges of the non-woven material are double-folded under so as to not be exposed. The loops 30 are likewise formed of the SMMS, SMS or the like and folded over and stitched such that the cut edges are not exposed. The seams 16 are stitched with 10-12 SPI. The garment also includes foot coverings 18 that are preferably stitched to the garment, but may alternately be individually formed and attached, such as by an elastic band stitched into the hem at the foot opening. The garment 12 further includes an excess of material in the armpit 20 and groin/seat area 22, to minimize the risk of accidental tearing that might generate additional particulate matter into the environment as well as expose the wearer to environmental hazards.


The loops of the embodiments of FIGS. 4 and 5 are preferably formed with no exposed cut edges 12. In particular, each loop 30 is preferably formed from an elongated piece of cut nonwoven fabric defining a pair of generally parallel cut edges 12, and wherein the cut edges 12 are folded under and hemmed into place such that the cut edges 12 are not exposed.



FIG. 6 illustrates a protective garment 110 for use with a radiation monitoring device according to one embodiment of the disclosed technology. In this particular embodiment, the garment 110 is a jumpsuit or coverall-type garment having a hood portion 125 and a body portion 115. This particular embodiment also includes separate boots 120, although other embodiments include separable or integrated foot coverings. Still other embodiments include separate, separable or integrated hand coverings. Yet other embodiments include separate, separable, or integrated hoods. The arm openings 155 and the leg openings 156 in this particular embodiment are hemmed so as to reduce shredding of the garment material. Optionally, the edges at arm openings 155 and the leg openings 156 are double-folded and hemmed such that all cut edges are double-folded under so as to not be exposed. Non-exposure of the edges greatly reduces the potential for generation of shed particles where the material was cut. In other embodiments, the arm openings 155 and/or leg openings 56 further include elastic bands so as to ensure a tight fit.


Garment 110 is accessible through opening 146, which is held closed using a closure means 150 shown in greater detail in FIG. 8. In this particular example, closure means 150 includes a zipper 152. In other examples, closure means 150 includes snaps, buttons, hook-and-loop closure materials such as Velcro®, adhesive strips, or any other suitable closure means. Additionally, closure means 150 further includes a cover flap 195 capable of being folded over once opening 146 is closed using zipper 152. Cover flap 195 prevents material from entering garment 110 through zipper 152. Flap 195 is releasably held in the closed position by a securing strip 190, which may comprise hook-and-loop closure materials such as Velcro®, adhesive strips, or any other suitable securing means.


Garment 110 can be made from a non-woven material such as polypropylene, polyethylene, polyester materials, and the like, including combinations of two or more non-woven materials. Such materials may be manufactured using spunbond/melt blown/melt blown/spunbond (SMMS) techniques, spunbond/melt blown/spunbond (SMS) techniques, or other suitable techniques for manufacturing non-woven garments, and may include two or more layers of material and/or multiple layers of different materials, as desired. The seams 116 located at various points about the garment 110 are optionally double-folded under so as not to be exposed. The seams 116 are also stitched with an optimized number of stitches per inch (SPI) increased to 10-12 SPI over 6-8 SPI, which is the industry standard. A stitch density of 10-12 SPI has been found to be optimal, as more than 12 SPI weakens the non-woven material via excessive perforation and less than 10 SPI provides a looser and weaker hem, such that particulate shedding is not minimized. Optionally, seams 16 are formed using some other method such as sonic welding or binding with welting or other materials.


Continuing with the embodiment shown in FIG. 6, garment 110 further includes at least one attachment feature 130 for a dosimeter or other measurement, communication, or detection device. In this particular example, garment 110 includes two attachment features 130 located near the garment shoulders on its front side. Other embodiments include a greater or lesser number of attachment features positioned at other locations about the garment, such as the arms, wrists, or waist area, as desired. Attachment features 130 are shown as loops or straps affixed to garment 110 using box-type stitches. In other examples, attachment features 130 have a different configuration such as a sleeve, pouch, pocket, or the like, and are attached using a different type of stitching or a different attachment means such as adhesives, snaps, ties, and the like. Optionally, garment 110 includes further monitoring and/or communication devices in addition to dosimeters, such as body temperature monitoring devices, radios, pulse rate monitors, and the like.


In one embodiment of the disclosed technology, garment 110 is constructed such that one or more closures (zippers, adhesives, etc.) are designed to open, rip, or tear when a force above a predetermined threshold is applied. Such “tear-open” garments are designed so as to allow for easy removal of a garment when it is no longer needed. Tear-open garments allow workers to quickly, safely, and easily remove a garment at the end of a shift, for example. Attachment features 130 are optionally positioned so as to allow a wearer to grasp one or more of them and strong enough such that pulling on the attachment features 130 causes the tear-open closures to at least begin to open, thereby allowing the worker to quickly, safely, and easily remove the garment 110. Alternatively, a garment 110 according to another embodiment of the disclosed technology will open at the closure means 150 when sufficient force is applied by the wearer to the attachment features 130, thereby allowing the wearer to remove the garment 110.


Portions of garment 110 likely to experience wear such as the knees and elbows may include reinforced portions 140, 145 to preclude seepage or bleed-through of contamination in the event the wearer leans or kneels in contaminated environments. Reinforced portions 140, 145 may be made from the same material as garment 110 or from a different, stronger material. Optionally, garment 110 may be made from two or more layer of material. Reinforced portions 140, 145 may be attached to the interior or exterior surface of garment 110 and may be attached using adhesives, stitching, or any other suitable attachment method. Garment 110 may also include one or more pockets 135 located about the garment as desired.



FIG. 7 shows an alternative embodiment of a garment 160. Garment 160 is a smock or apron having two sleeves 175 and an open bottom portion 176 that extends down the wearer's torso. Garment 160 is closed using a closure means 165 (shown in this particular example as snaps). In other examples, closure means 165 may take the form of a zipper, buttons, adhesive strips, or any other suitable closure means. Garment 160 further includes two pockets 180 located near bottom portion 176, although other embodiments may include more or fewer pockets located at different points about garment 160.


Continuing with the embodiment shown in FIG. 7, garment 160 further includes at least one attachment feature 170. In this particular example, garment 160 includes two attachment features 170 located near the garment shoulders and one attachment feature 170 located on a sleeve. Other embodiments include a greater or lesser number of attachment features positioned at other locations on the garment such as the arms, wrists, or waist area as desired. Attachment features 170 are shown as loops or straps affixed to garment 160 using box-type stitches. In other examples, attachment features 170 have a different configuration such as a sleeve, pouch, pocket, or the like, and are attached using a different type of stitching or a different attachment means such as adhesives, snaps, ties, and the like. Optionally, garment 160 includes further monitoring and/or communication devices in addition to dosimeters such as body temperature monitoring devices, radios, pulse rate monitors, and the like.


Turning to the embodiment shown in FIG. 9, garment 200 generally has a hood that closes snugly around a full face respirator or air mask, thereby reducing the necessity for additional tape or material for covering the neck, and reducing the risk of breach of the integrity of the seal around the neck area from external radiological, environmental or other contaminants. Garment 200 comprises an improved hood and closure system. In this garment 200, hood 210 is either made of contiguous nonwoven fabric with body 220 or stitched to body 220 from one or more cut panels of the same or different nonwoven fabrics. (Other assembly techniques will occur to those skilled in the art.) Hood 210 and body 220 include an opening at the front of the suit 200 that is shown closed by zipper 230 or other closure device. In some embodiments, including for example the embodiment shown in FIG. 8, zipper 230 is covered by flap 240 over all or part of its length.


The loose edge 245 of flap 240 in some embodiments is secured to body 220 and hood 210 by a two-part closure device 247, which might be one-time-closable, reopenable, and/or repositionable closure device. In some embodiments, two-part closure device 247 is adhesive-based, such as a peel-and-stick adhesive strip, where adhesive is on either the flap 240 or the body 220/hood 210, and the other (the body 220/hood 210 or the flap 240, respectively) includes a landing zone to which the adhesive adheres well. In other embodiments, two-part closure device 247 is a hook-and-loop closure, with a region of hook material on the flap 240 and a region of loop material on body 220/hood 210. Other alternative two-part closure devices include buttons, slide closures, snaps, adhesive tape strips, and the like.


In use, the wearer of suit 200 typically dons a respirator or air mask, then suit 200. After she puts her legs and arms in the legs 260 and arms 270 of suit 200, she puts the hood 210 over her head and closes zipper 230 up to edge 213 of face opening 215. She closes flap 240, securing flap 240 to the hood 210 and body 220 using two-part closure device 247. In the illustrated embodiment, the extra fabric around the neck area and under the chin relative to other embodiments and suits, in combination with elastic embedded in the hood edge 213, allows the edge 213 of the hood 210 to fully surround the perimeter of the respirator without the need to seal the edge 213 to the respirator by mechanical or adhesive means to produce an occlusive seal. In other embodiments, tape or other means are used to secure edge 213 to the mask or respirator. In some embodiments, there is elastic around edge 213 that has a stretched (vertical), or open, diameter and a contracted, or closed, diameter that fits around a face mask or respirator. In some embodiments, the open diameter of face opening 215 is less than about 15 inches. In preferred embodiments, the open diameter is less than about 10 inches, while in more preferred embodiments, the closed diameter is less than about 7 inches.


To remove garment 200, the wearer opens at least the top of two-part closure device 247 and pulls doffing loops 250. In some embodiments, this begins to open zipper 230, and the wearer opens it the rest of the way, while in other embodiments zipper 230 is manually opened without the assistance of doffing loops 250. In some embodiments, the wearer pulls on a doffing loop 275 to remove her arm from each sleeve, including pulling her hand through the elastic band 273 at each wrist. The wearer preferably removes all of garment 200 using the “inside-out” method, containing all “outside” surfaces of the garment 200 that had been exposed to actual or potential contamination within the inside-out garment 200 and disposing of it appropriately.


In yet another embodiment, the neck flap is extended and includes an extra closure device, while the hood bears additional doffing loops as illustrated in FIG. 10 as garment 300. Garment 300 includes zipper 330, flap 340, two-part closure strip 347 that holds loose edge 345 close to the body, and doffing loops 350 on either side of the chest near the shoulders, all as discussed in corresponding terms above. Garment 300 also includes an extra portion 380 of flap 340 adjacent to or near the bottom of face opening 315 along hood edge 313. On the body side of extra portion 380 is a patch of hook fabric 385 that mates with target zone 390, which is a patch of loop fabric that holds extra portion 380 in a closed position, but allows the extra portion 380 of flap 340 to be reopened when desired. In alternative embodiments, different two-part closure devices are used with one part on the back of extra portion 380 in the other on the front portion of the bottom of hood 310. Doffing loops 355 on either side of hood 310 give the user additional grasping points for removing the hood 310 and opening the top of zipper 330 while keeping (potentially) contaminated gloves away from the exposed neck.


In still another embodiment, shown in FIG. 11 as garment 400, flap 480 has a grasping tab 487 that extends beyond two-part closure device portion 485 to provide an unattached point at which the wearer can grasp the flap 480 and pull it open to begin doffing the garment 400. In alternative embodiments, grasping tab 487 takes the form of a strap, cord, or “tail” of any of a variety of shapes and materials, as will occur to those skilled in the art in view of the present disclosure. On garment 400, closure device portion 485 mates with landing area 490, as discussed above in relation to garment 300 and FIG. 9. On garment 400, however, landing area 490 is vertically wide enough and extends far enough around edge 413 of face opening 415 to make face opening 415 adjustable for different-sized masks, respirators, and other equipment. The adjustment of this sizing is facilitated in this embodiment by the repositionable character of two-part closure device 485/490.


It will be understood by those skilled in the art that the features of each illustrated embodiment can be mixed and matched, tweaked and adapted as needed or desired. Particular embodiments may or may not include, for example, features corresponding to double-folded and hemmed edges or bound seam 12; stitch density of 10-12 SPI; hand-engaging loops 30; integrated hand or foot coverings; reinforced elbows and knees; attachment features 130; tear-away seams; zipper 230; doffing loops 250, 275, or 355; two-part closure devices 247, 385/390, or 485/490; limited or broad landing areas 390 and 490; elastic cuffs 263, 273; and grasping tab 487. The flap that covers the neck may be short as illustrated on garment 400, or may be long as illustrated in garment 200.


While the disclosed technology has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character. It is understood that the embodiments have been shown and described in the foregoing specification in satisfaction of the best mode and enablement requirements. It is also understood that one of ordinary skill in the art could readily make a near infinite number of insubstantial changes and modifications to the above-described embodiments, and that it would be impractical to attempt to describe all such variations in the present specification. Accordingly, it is understood that all changes and modifications that come within the spirit of the disclosed technology are desired to be protected.

Claims
  • 1. A nonwoven safety garment for protecting against radiological, light splash, or biological hazards, comprising: a garment that has an inside and an outside and covers substantially all of the wearer;an integrated hood including an edge that defines a face opening;a closure that openably closes the garment, a first end of the closure being adjacent the hood opening;a neck flap attached to a first side of the face opening, the neck flap bearing one part of a two-part attachment device, the second part of the attachment device being on a second side of the face opening opposite the first side, wherein the neck flap defines the bottom of the face opening and inhibits the closure from opening when the first part and the second part of the attachment device are in contact, the neck flap including a grasping tab portion adjacent the attachment device, the grasping tab portion defining a portion for the user to grasp and open the neck closure; anda plurality of doffing loops positioned and attached to the outside of the garment with sufficient strength that a wearer can pull on one or more of the doffing loops to doff at least a portion of the garment, each doffing loop attached to the outside of the garment and forming a portion through which a user may insert a digit to grasp the doffing loop, two doffing loops being attached to the integrated hood and two doffing loops being attached to the chest area of the garment adjacent to the first end of the closure;wherein movement of the neck flap away from the second side of the face opening by a user and movement of the doffing loops attached to the integrated hood away from one another by a user opens the closure while permitting the user's hands and fingers to remain away from the neck of the wearer; andwherein movement of the doffing loops attached to the chest area of the garment away from one another further opens the closure.
  • 2. The garment of claim 1, wherein the plurality of doffing loops are loops of fabric sewn onto the outside of garment.
  • 3. The garment of claim 2, wherein the closure at least partially opens when a separating force above a predetermined threshold is applied in a particular direction, andat least one of the doffing loops is positioned and attached on the garment to transmit force above the predetermined threshold to the closure in the particular direction.
  • 4. The garment of claim 1, further comprising reinforced knees and elbows that retard or prevent passage of liquids through the garment at those points.
  • 5. The garment of claim 1, wherein the closure that openably closes includes a slide fastener; and wherein movement of the neck flap away from the second side of the face opening, movement of the doffing loops attached to the integrated hood away from one another, and movement of the doffing loops attached to the chest area of the garment away from one another results in the slide fastener moving to open the closure.
  • 6. The garment of claim 1, wherein movement of the doffing loops attached to the chest area away from one another after the neck flap is moved away from the second side of the face opening opens the closure, and wherein movement of the doffing loops attached to the chest area away from one another before the neck flap is moved away from the second side of the face opening will not open the closure.
  • 7. The garment of claim 1, wherein movement of the neck flap away from the second side of the face opening, movement of the doffing loops attached to the integrated hood away from one another, and movement of the doffing loops attached to the chest area of the garment away from one another fully open the closure without a user's hands contacting the inside of the garment.
  • 8. A method of making a safety garment for protecting against radiological, light splash, or biological hazards, comprising the acts of: connecting portions of at least one sheet of nonwoven material to define a garment that has an inside and an outside, covers substantially all of the wearer, an integrated hood that defines a face opening, and a closure that openably closes to permit entry and exit by the user, a first end of the closure being adjacent the face opening;forming a neck flap extending from a first side of the face opening, the neck flap bearing one part of a two-part attachment device, the second part of the attachment device being on a second side of the face opening opposite the first side, wherein the neck flap defines the bottom of the face opening and inhibits the closure from opening when the first part and the second part of the attachment device are in contact; andattaching two doffing loops to an integrated hood and attaching two doffing loops to the chest area of the garment adjacent the first end of the closure, each doffing loop attached to the outside of the garment with sufficient strength that a wearer can pull on one or more of the doffing loops to doff at least a portion of the garment, each doffing loop including a portion that may be grasped by a user, wherein the doffing loops and the neck flap are positioned to allow a user to open the closure by pulling on the neck flap,one or more doffing loops, orthe neck flap and one or more doffing loops
  • 9. The method of claim 8, wherein the plurality of doffing loops are loops of fabric sewn onto the outside of the garment.
  • 10. The method of claim 8, further comprising: attaching a reopenable closure to the garment, wherein the closure opens at least partially when a separating force above a predetermined threshold is applied perpendicular to the direction of the stitching, andat least one of the doffing loops is positioned and attached on the garment to transmit an applied force above the predetermined threshold perpendicular to the stitching at the closure.
  • 11. The method of claim 8, wherein the neck flap further includes one or more doffing features, each positioned and attached to the outside of the neck flap so that, when the attachment device is in the closed position, a wearer can pull at least one doffing feature to move the attachment device to an open position.
  • 12. The method of claim 8, further comprising reinforcing the knees and elbows of the garment to retard or prevent passage of liquids through the garment at those points.
  • 13. A method of removing a nonwoven safety garment for radiological, light splash, or biological hazard protection, comprising the acts of: grasping and pulling a neck flap attached to a first side of an integrated hood and defining a face opening, the neck flap bearing one part of a two-part attachment device, the second part of the attachment device being on a second side of the face opening opposite the first side, the neck flap defining the bottom of the face opening;initially opening a garment closure through which a user dons the garment, a first end of the closure being adjacent to the face opening, said initially opening resulting from grasping two first doffing loops attached to the outside of the integrated hood and pulling the two first doffing loops away from one another; andfurther opening the garment closure to an extent greater than that achieved by said initially opening, said further opening resulting from grasping two second doffing loops attached to the chest area of the garment adjacent to the first end of the closure and pulling the second doffing loops away from one another.
  • 14. The method of claim 13, wherein said grasping and pulling a neck flap, initially opening a garment, and further opening the garment closure are performed without touching inside of garment.
  • 15. The method of claim 13, wherein said grasping the first doffing loops includes the user inserting one of the user's digits through a portion of at least one first doffing loop.
  • 16. The method of claim 13, wherein said grasping the second doffing loops includes the user inserting one of the user's digits through a portion of at least one second doffing loop.
REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. patent application Ser. No. 13/243,282, filed Sep. 23, 2011, which is a continuation-in-part of U.S. patent application Ser. No. 12/192,097, filed Aug. 14, 2008 (now abandoned), which is a nonprovisional of U.S. Provisional App. No. 60/955,718, filed Aug. 14, 2007, and was a continuation-in-part of U.S. patent application Ser. No. 11/428,728, filed Jul. 5, 2006 (now abandoned), which was a continuation-in-part of U.S. patent application Ser. No. 10/798,646, filed Mar. 11, 2004 (now abandoned), the entireties of which are hereby incorporated herein by reference. Any disclaimer that may have occurred during the prosecution of the above-identified applications is hereby expressly rescinded.

US Referenced Citations (106)
Number Name Date Kind
2668294 Gilpin Feb 1954 A
3179955 Worth Apr 1965 A
3381440 Hullhorst May 1968 A
3382643 Hullhorst May 1968 A
3486470 Florczak Dec 1969 A
3499261 Hullhorst Mar 1970 A
3773200 Morris Nov 1973 A
3775933 Prescott et al. Dec 1973 A
3776372 Lemelson Dec 1973 A
3782309 Lee Jan 1974 A
3798874 Lemelson Mar 1974 A
3906878 Burton Sep 1975 A
3949130 Sabee et al. Apr 1976 A
4041203 Brock et al. Aug 1977 A
4066025 Speer Jan 1978 A
4106120 Zurbrigg et al. Aug 1978 A
4272851 Goldstein Jun 1981 A
4286439 Pasternack Sep 1981 A
4324087 Mitchell et al. Apr 1982 A
4408438 Rewitzer Oct 1983 A
4448138 Freermann May 1984 A
4491079 Gustavsson Jan 1985 A
4512464 Sylvester Apr 1985 A
4517714 Sneed et al. May 1985 A
4525407 Ness Jun 1985 A
4546497 Ono et al. Oct 1985 A
4613640 Deisler et al. Sep 1986 A
4624200 Fisher Nov 1986 A
4648336 Ragnebring Mar 1987 A
4655760 Morman et al. Apr 1987 A
4670073 Langley Jun 1987 A
4670913 Morell et al. Jun 1987 A
4683593 Langley Aug 1987 A
4688566 Boyce Aug 1987 A
4689831 Greenberger et al. Sep 1987 A
4753182 Blackburn Jun 1988 A
4757669 Areblom et al. Jul 1988 A
4818597 DaPonte et al. Apr 1989 A
4848222 Fleissner Jul 1989 A
4860382 Markwell Aug 1989 A
4928611 Ogawa May 1990 A
4932078 Jones et al. Jun 1990 A
4938817 Langley Jul 1990 A
4998296 Stames Mar 1991 A
5003902 Benstock et al. Apr 1991 A
5005216 Blackburn et al. Apr 1991 A
5042227 Merry Aug 1991 A
5119515 Altinger Jun 1992 A
5150660 Kuczynski Sep 1992 A
5165353 Freermann Nov 1992 A
5172629 Merry Dec 1992 A
5188885 Timmons et al. Feb 1993 A
5229181 Daiber et al. Jul 1993 A
5309828 Merry May 1994 A
5417912 Merry May 1995 A
5447012 Kovacs et al. Sep 1995 A
5492753 Levy et al. Feb 1996 A
5493730 Vo-Dinh Feb 1996 A
5511246 Farkas et al. Apr 1996 A
5524531 Merry Jun 1996 A
5564356 Reinders Oct 1996 A
5620098 Boos et al. Apr 1997 A
5690537 Kalmus Nov 1997 A
5692606 Elmaleh Dec 1997 A
5784717 Singer Jul 1998 A
5815834 Bronson Oct 1998 A
5878551 Curley et al. Mar 1999 A
5934470 Bauer et al. Aug 1999 A
5991921 Saito Nov 1999 A
5996320 Todd et al. Dec 1999 A
6038699 Han et al. Mar 2000 A
6047413 Welchel et al. Apr 2000 A
6117515 Brunson et al. Sep 2000 A
6235660 Bhattacharjee et al. May 2001 B1
6378136 Matsushita Apr 2002 B2
6435116 Ribble et al. Aug 2002 B2
6854135 Jones et al. Feb 2005 B2
7203974 Jones et al. Apr 2007 B2
7651653 Morman et al. Jan 2010 B2
7699195 Scott Apr 2010 B2
8621669 Yadav et al. Jan 2014 B2
20010032346 Matsushita et al. Oct 2001 A1
20010034891 Matsushita Nov 2001 A1
20010041487 Brady et al. Nov 2001 A1
20020046549 O'Connor et al. Apr 2002 A1
20020046550 O'Connor et al. Apr 2002 A1
20020100107 Shin Aug 2002 A1
20030166369 De Leon et al. Sep 2003 A1
20030226196 Grilliot Dec 2003 A1
20030229936 Tremblay-Lutter et al. Dec 2003 A1
20040006815 Carroll Jan 2004 A1
20040060649 Van Gompel et al. Apr 2004 A1
20040107473 Jones et al. Jun 2004 A1
20040118505 Shimakawa et al. Jun 2004 A1
20050050608 Jones et al. Mar 2005 A1
20050188907 D'Henin Sep 2005 A1
20050198726 Yadav et al. Sep 2005 A1
20060026731 Qashou Feb 2006 A1
20060081489 Wheeler et al. Apr 2006 A1
20060096003 Plaatje et al. May 2006 A1
20060117598 Czaplewski et al. Jun 2006 A1
20060131783 Morman et al. Jun 2006 A1
20060150305 Plut Jul 2006 A1
20090019616 Smith et al. Jan 2009 A1
20090126088 Yadav et al. May 2009 A1
20100257661 Yadav et al. Oct 2010 A1
Foreign Referenced Citations (3)
Number Date Country
2000317165 Nov 2000 JP
2006002311 Jan 2006 JP
WO0122842 Apr 2001 WO
Non-Patent Literature Citations (43)
Entry
U.S. Appl. No. 10/798,646, Restriction Requirement May 9, 2005.
U.S. Appl. No. 10/798,646, Response to Restriction Requirement Jun. 13, 2005.
U.S. Appl. No. 10/798,646, Non-Final Office Action Aug. 25, 2005.
U.S. Appl. No. 10/798,646, Response to Non-Final Office Action Jan. 26, 2006.
U.S. Appl. No. 10/798,646, Response to Non-Final Office Action Feb. 17, 2006.
U.S. Appl. No. 10/798,646, Final Office Action Mar. 6, 2006.
U.S. Appl. No. 10/801,046, Non-Final Office Action Sep. 26, 2006.
U.S. Appl. No. 12/192,097, Non-Final Office Action Jan. 14, 2010.
U.S. Appl. No. 12/192,097, Response to Non-Final Office Action Apr. 14, 2010.
U.S. Appl. No. 12/192,097, Final Office Action Jun. 16, 2010.
U.S. Appl. No. 12/192,097, Response to Final Office Action Sep. 16, 2010.
U.S. Appl. No. 12/192,097, Advisory Action Nov. 19, 2010.
U.S. Appl. No. 12/192,097, Request for Continued Examination Dec. 9, 2010.
U.S. Appl. No. 12/192,097, Final Office Action Jan. 10, 2011.
U.S. Appl. No. 12/192,097, Notice of Restarted Response Period Feb. 2, 2011.
U.S. Appl. No. 12/192,097, Request for Continued Examination May 4, 2011.
U.S. Appl. No. 12/192,097, Non-Final Office Action May 23, 2011.
U.S. Appl. No. 12/192,097, Interview Summary—Examiner Initiated Dec. 5, 2011.
U.S. Appl. No. 11/428,728, Restriction Requirement Aug. 2, 2007.
U.S. Appl. No. 11/428,728, Response to Restriction Requirement Jan. 31, 2008.
U.S. Appl. No. 11/428,728, Non-Final Office Action Mar. 18, 2008.
U.S. Appl. No. 11/428,728, Response to Non-Final Office Action Sep. 18, 2008.
U.S. Appl. No. 11/428,728, Final Office Action Nov. 12, 2008.
U.S. Appl. No. 11/428,728, Examiner Interview Summary Feb. 5, 2009.
U.S. Appl. No. 12/422,842, Non-Final Rejection Nov. 18, 2010.
U.S. Appl. No. 12/422,842, Examiner Interview Summary May 17, 2011.
U.S. Appl. No. 12/406,708, Non-Final Rejection Dec. 10, 2010.
U.S. Appl. No. 12/406,708, Examiner Interview Summary May 9, 2011.
U.S. Appl. No. 12/406,708, Response to Non-Final Office Action May 10, 2011.
U.S. Appl. No. 12/406,708 Final Office Action Jul. 13, 2011.
U.S. Appl. No. 12/406,708 Notice of Appeal Oct. 13, 2011.
U.S. Appl. No. 12/406,708, Request for Pre-Appeal Conference Oct. 13, 2011.
U.S. Appl. No. 12/406,708, Appeals Conference Reopen Prosecution Feb. 1, 2012.
U.S. Appl. No. 12/406,708, Non-Final Office Action Mar. 7, 2012.
U.S. Appl. No. 12/406,708, Applicant Initiated Interview Summary Aug. 3, 2012.
U.S. Appl. No. 12/406,708, Response to Non-Final Office Action Sep. 7, 2012.
U.S. Appl. No. 12/406,708, Non-Final Office Action Nov. 23, 2012.
Application No. PCT/US2012/056627, International Search Report and Written Opinion Jan. 17, 2013.
U.S. Appl. No. 13/243,282, Non-Final Office Action Feb. 12, 2013.
U.S. Appl. No. 13/243,282, Applicant Initiated Interview Summary May 16, 2013.
U.S. Appl. No. 13/243,282, Response to Non-Final Office Action Jul. 12, 2013.
U.S. Appl. No. 13/243,282, Notice of Allowance Sep. 3, 2013.
Application No. PCT/US2012/056627, International Preliminary Report on Patentability Apr. 3, 2014.
Related Publications (1)
Number Date Country
20140173814 A1 Jun 2014 US
Provisional Applications (1)
Number Date Country
60955718 Aug 2007 US
Continuations (1)
Number Date Country
Parent 13243282 Sep 2011 US
Child 14108766 US
Continuation in Parts (3)
Number Date Country
Parent 12192097 Aug 2008 US
Child 13243282 US
Parent 11428728 Jul 2006 US
Child 12192097 US
Parent 10798646 Mar 2004 US
Child 11428728 US