US20130196066A1 - Method of manufacturing a protective glove - Google Patents
Method of manufacturing a protective glove Download PDFInfo
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- US20130196066A1 US20130196066A1 US13/795,694 US201313795694A US2013196066A1 US 20130196066 A1 US20130196066 A1 US 20130196066A1 US 201313795694 A US201313795694 A US 201313795694A US 2013196066 A1 US2013196066 A1 US 2013196066A1
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- United States
- Prior art keywords
- liquid
- outer shell
- glove
- former
- seam
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/015—Protective gloves
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
- A41D19/0058—Three-dimensional gloves
- A41D19/0065—Three-dimensional gloves with a textile layer underneath
Definitions
- This invention generally relates to gloves. More particularly, the invention relates to protective gloves used in industries where workers encounter extremely high or extremely low temperature substances or potentially come into contact with any number of a variety of caustic substances. Specifically, the invention relates to a glove having a first coating on its exterior surface that penetrates and seals the seams and a second coating that overlays the first coating, and to a method of manufacturing gloves incorporating these elements.
- the device of the present invention comprises a temperature resistant and fluid impermeable protective glove having front and back panels joined together by at least one seam.
- the glove is dipped into a first thin liquid to coat the exterior surface of the glove.
- the first liquid penetrates through gaps in the seam and seals those gaps as it solidifies.
- the first liquid coated glove is then dipped into a second thicker liquid to coat the entire exterior surface including the sealed seam.
- a third coating may be applied to the interior surface of the glove prior to joining the front and back panels together.
- the third coating is a blade-coating that improves the gloves cut and penetration strength.
- the glove may also include an interior liner and an exterior protective member for added comfort and protection.
- FIG. 1 is a front elevational view of a glove in accordance with the present invention being used to protect a worker's hand from a hot or caustic liquid;
- FIG. 2 is a front elevational view of the glove of the present invention showing the exterior surface thereof;
- FIG. 3 is an exploded side elevational view of the glove of FIG. 2 being lowered over an expandable glove former;
- FIG. 3 a is an exploded front elevational view of the glove of FIG. 2 being lowered over the expandable former;
- FIG. 4 is a side view of the glove on the glove former, illustrating the former being expanded to open up the glove's seams to obtain access to the gaps between the threads of the stitching;
- FIG. 5 is a side elevational view showing the glove and former being dipped into a tank of a first liquid to coat the exterior of the glove and showing some of that first liquid flowing into the expanded seam;
- FIG. 6 is a top cross-sectional view of the glove through line 6 - 6 of FIG. 5 ;
- FIG. 7 is an enlarged view of the highlighted region of FIG. 6 ;
- FIG. 8 is an enlarged view of the highlighted region of FIG. 6 shown with the former returned to its non-expanded condition and illustrating how the first fluid has sealed the seam in the glove by filling the gaps between the threads;
- FIG. 9 is a side elevational view of the glove on the former when in a non-expanded state, with the glove being dipped a second time to apply a coat of a second liquid over the solidified first layer of the first liquid;
- FIG. 10 is a top cross-sectional view of the glove of FIG. 9 removed from the former and showing the solidified first and second layers;
- FIG. 11 is an enlarged top view of the highlighted region of FIG. 10 ; showing the second layer of the second liquid coated over the solidified first layer and forming the exterior surface of the glove;
- FIG. 11 a is an enlarged top view of the highlighted region of FIG. 10 showing an alternative embodiment of the invention in which a blade-coating is additionally applied to the interior surface of an outer shell of the glove;
- FIG. 12 is an exploded front view of the glove of the present invention along with a cotton liner that is received in the interior of the glove and which directly contacts the worker's hand, together with a Kevlar mitt that is slipped over the exterior surface of the top portion of the glove of the present invention to give added temporary protection to a workman's hand.
- FIGS. 1-12 there is shown a protective glove in accordance with the present invention and generally indicated at 10 .
- FIGS. 1 , 2 and 12 show various details of the structure of glove 10 .
- FIGS. 3-11 a illustrate how glove 10 is manufactured and how the process constructs the structure of glove 10 .
- FIG. 11 a illustrates an alternative structure for the glove in accordance with the present invention.
- Glove 10 as illustrated herein is of a mitt style and includes a thumb region 14 and a single finger region 16 that would cover and protect all four of the wearer's fingers together. It will be understood that if it is desirable to protect the wearer's fingers in a different manner, that glove could alternatively include a thumb region and two, three or four finger regions. These alternative versions of the glove are not illustrated herein but are considered to fall within the spirit and scope of the present invention.
- glove 10 is designed for applications where protection is needed from one or more of hot, cold or caustic substances that are able to penetrate into the interior of the glove through the seams.
- temperature resistant used herein means resistance to both heat and cold
- fluid impermeable means impermeability or resistance to both liquids and gases.
- glove 10 will also protect the wearer's hand from exposure to hot, cold and caustic solid materials but solid materials are less likely to be of such a nature that they are able to penetrate into the interior cavity of the glove through the seams.
- the glove of the present invention will also substantially prevent particulate-type solid materials that are extremely hot, extremely cold or extremely caustic from penetrating into the interior cavity through the glove's seams. Consequently, the term “fluid” should also be considered, for the purposes of this description, to refer to particulate-type solid materials and “fluid impermeability” to refer to impermeability of the seams with reference to particulate-type solid materials.
- FIG. 1 shows glove 10 in use protecting a person's hand against injury during exposure to a hot liquid 12 .
- Glove 10 is designed to extend for a distance beyond the wrist of the wearer and to terminate approximately midway between the wrist and elbow. Alternately, the glove may extend entirely up the length of the user's arm.
- Glove 10 is manufactured by cutting two substantially identical pieces of fabric and then stitching those pieces together to form an outer shell 18 .
- Outer shell 18 has a front 20 and a back 22 that are joined together by sewing along a seam 24 to form a plurality of stitches that hold the two pieces of fabric together.
- Front 20 is designed to abut the palm of the wearer and back 22 is designed to abut the back of the wearer's hand.
- Front 20 and back 22 bound an interior cavity 26 ( FIG. 6 ), configured to receive the hand and a portion of the wearer's wrist and arm therein. Cavity 26 is accessed through an opening (not shown) at a lowermost end 20 a, 22 a ( FIG. 3 ) of front 20 and back 22 .
- the base fabric used to manufacture outer shell 18 preferably is a poly/cotton, a cotton jersey or a cotton interlock fabric that is not blade-coated. Blade-coating is accomplished by applying a silicon or nitrile coating onto one face of front 20 and back 22 either before or after cutting them out and prior to sewing.
- the fabric used for front 20 and back 22 is one of a poly/cotton, a meta-aramid and a poly-aramid fabric that is blade-coated. When front 20 and back 22 are cut out and sewn together, the blade-coated face of the two pieces of fabric is disposed on the interior of the glove and therefore bounds cavity 26 .
- outer shell 10 is slipped over an expandable former 28 ( FIGS. 3 and 3 a ).
- Former 28 comprises a first member 28 a and a second member 28 b that are movable horizontally toward and away from each other.
- Former 28 is therefore able to be moved between a non-expanded condition ( FIG. 3 ) and an expanded condition ( FIG. 4 ).
- first and second members 28 a, 28 b abut each other along a midline 29 .
- first and second members 28 a, 28 b are separated from each other by a small vertical space 31 .
- 3-4 is a former for a mitt and therefore includes a thumb region 33 and a single finger region 35 . It will be understood, however, that if the glove to be manufactured is to have a thumb region and four finger regions, that the former used in that instance would likewise include a thumb region and four finger regions.
- Gaps 32 permit fluid communication through seam 24 between interior cavity 26 and the air surrounding the exterior surface 18 a of outer shell 18 .
- gaps 32 permit some flow of liquids and gases through the seam 24 between interior cavity 26 and the air surrounding exterior surface 18 a of outer shell 18 .
- former 28 is expanded, strands 30 become more visible and the gaps 32 are widened to a greater degree than when outer shell 18 was in the non-expanded condition.
- first coating 34 of a suitable liquid is applied to the exterior surface 18 a of outer shell 18 .
- This step may require moving former 28 from a first location to a second location in some manner.
- former 28 with the expanded outer shell 18 disposed thereon is dipped into a vat 36 holding a quantity of a first liquid 38 .
- This dipping procedure is the preferred manner of applying first liquid 38 .
- First liquid 38 preferably will make outer shell 18 one or both of temperature resistant and fluid impermeable.
- a suitable first liquid 38 for this purpose would be nitrile or neoprene.
- First liquid 38 preferably is in the form of a low viscosity fluid, meaning that it is more thin and runny and less sticky. In order to attain the correct viscosity for the first liquid 38 , the liquid may need to be heated.
- first liquid 38 When outer shell 18 is dipped into first liquid 38 , the liquid 38 covers exterior surface 18 a and effective obstructs gaps 32 thereby cutting off fluid communication between interior cavity 26 and the air surrounding exterior surface 18 a of outer shell 18 . More particularly, first liquid 38 penetrates into seam 24 , flowing into and through gaps 32 between adjacent strands 30 of threads. First liquid 38 also flows around and coats strands 30 and may penetrate slightly into the same. First liquid 38 preferably also flows through seam 24 and flows for a short distance along the interior surfaces of front 20 and back 22 ( FIG. 7 ) that define and bound cavity 26 . After being immersed for a length of time sufficient to allow first fluid 38 to flow into and through gaps 32 , outer shell is removed from being further exposed to first liquid 38 .
- first fluid 38 The length of time involved will vary with the viscosity of first fluid 38 from just a few seconds to several minutes. While outer shell 18 is being removed from first liquid 38 , former 28 is moved from its expanded condition back to its non-expanded condition. At the same time, the previously heated first liquid 38 begins to cool and solidify and seam 24 begins to close back to its original non-expanded condition. Thus, strands 30 move closer together and gaps 32 close but, as this occurs, a quantity of the cooling first liquid 38 becomes entrapped in the gaps 32 between adjacent strands 30 ( FIG. 8 ) and thereby fills and seals the same. Thus, fluid communication through the seam 24 between interior cavity 26 and the air surrounding the exterior of outer shell 18 is effectively cut off.
- first coating 34 covers the entire exterior surface 18 a. It will be understood, however, that if only a portion of outer shell 18 was dipped into first liquid 38 , then first coating 34 will only form on the area of outer shell 18 that was dipped. First coating 34 effectively seals off both the interior and exterior regions of seam 24 because both of the interior and exterior regions thereof have had a quantity of first liquid 38 applied thereto. This sealing of seam 24 ensures that liquids cannot flow through gaps 30 in seam 24 and into interior cavity 26 of glove 10 .
- first coating 34 substantially prevents liquid from being able to penetrate into the interior cavity 26 of glove 10 by way of entering through seam 24 and thereby substantially reduces the likelihood of the worker being burned or injured by hot, cold or caustic substances.
- former 28 with the expanded outer shell thereon may be moved through a zone in a piece of equipment (not shown) where a quantity of first liquid 38 is sprayed over exterior surface 18 a of outer shell 18 .
- Any other procedures for applying a quantity of the first liquid to the exterior surface 18 a of outer shell 18 are also considered to fall within the spirit and scope of this invention. Dipping is, however, preferred as it ensures that substantially the entire seam 24 will be exposed to first liquid 38 .
- a second coating 40 is applied to the exterior surface 34 a of the first coating 34 on outer shell.
- a suitable substance for use as second coating 40 is nitrile, neoprene or any other substance that improves the temperature resistance and/or liquid impermeability qualities of the glove.
- a second coating 40 may also be provided to give the glove better abrasion and/or gripping qualities and materials that provide these features can be used to form second coating 40 .
- second coating 40 is applied by dipping the first-liquid-coated outer shell 18 and former 28 into a vat 42 of a suitable second liquid 44 .
- Any other suitable method of applying the second coating, such as spraying, may be employed without departing from the spirit and scope of the present invention.
- second liquid 44 is of a higher viscosity than is first liquid 38 , meaning that second liquid 44 preferably is more tacky and thicker than first liquid 38 .
- the liquid may need to be heated or cooled to a certain degree.
- first-liquid-coated outer shell 18 / 34 When the first-liquid-coated outer shell 18 / 34 is dipped into second liquid 44 , it coats and sticks to exterior surface 34 a of first coating 34 and completely covers the area of the glove that is dipped therein.
- the twice coated outer shell 18 on former 28 is then removed from vat 42 and, once again, sufficient time is allowed to permit second liquid 44 to cool, solidify or set so as to form the second coating 40 over the exterior surface 34 a of first coating 34 .
- both of the first and second coatings 34 , 40 have been applied and set, the manufacture of glove 10 is completed and glove 10 is removed from former 28 by sliding it off the same.
- FIG. 11 a is an enlarged top view of the highlighted portion of FIG. 10 showing an alternative embodiment of the invention.
- FIG. 11 a shows that a blade-coating 46 has been applied to the fabric used to construct the front 20 and back 22 of outer shell 18 before the front and back are sewn together.
- Blade-coating 46 preferably comprises a silicon or nitrile coating, or any other substance that improves the temperature resistance, fluid impermeability or the resistance of the glove to penetration or cuts from sharp objects. This blade-coating layer also tends to enable the glove to be used for applications involving higher temperatures than a glove that includes only the first and second coatings 34 , 40 .
- FIG. 12 shows the glove 10 being used as part of a protection assembly for a worker.
- the assembly includes a fabric liner 50 , the glove 10 described above, and a separate protective member 56 .
- Fabric liner 50 preferably is made from a soft material that is feels good to the touch, such as cotton.
- the cotton liner 50 is inserted into the cavity 26 of glove 10 such that an exterior surface of the liner abuts the interior surface of glove 10 .
- Complementary hook and loop fasteners are applied to liner 50 and glove 10 .
- FIG. 12 shows a strip of hook and loop fastener 52 applied to the end portion of liner 50 and a complementary strip of hook and loop fastener 54 applied to an end portion of the interior surface of glove 10 .
- the hook and loop fastener holds liner 50 and glove 10 together, but allows them to be separated for cleaning or replacement purposes. It will be understood that the exact configurations and locations of the hook and loop fasteners 52 , 54 is immaterial and they may be applied in several different locations on glove 10 and liner 50 .
- Protective member 56 is in the form of a mitt that is slidable over the exterior surface 40 a of the first and second liquid coated glove 10 .
- this mitt 56 is manufactured from a material such as KEVLAR and provides extra strength and heat resistance to glove 10 for temporary applications where such qualities are required.
- the protective member 56 is manufactured from a material that is one or more of temperature resistant, fluid impermeable, provides improved cut strength (i.e., resistance to cuts) and penetration strength (i.e., resistance to penetration by sharp objects).
- protective member 56 has a length from a top end 56 a of a finger region to a bottom end 56 b adjacent an opening to the interior cavity thereof; and glove 10 has a length from a top end 10 a of a finger region to a bottom end 10 b adjacent the opening into the interior cavity of the glove, and wherein the length of the protective member 56 is substantially smaller than the length of the glove 10 .
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- Textile Engineering (AREA)
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Abstract
A method of fabricating a temperature resistant and fluid impermeable protective glove having front and back panels joined by at least one seam. During manufacture, the glove is dipped into a first thin liquid to coat the exterior surface of the glove. The first liquid penetrates through gaps in the seam and seals those gaps as it solidifies. The first liquid coated glove is then dipped into a second thicker liquid to coat the entire exterior surface including the sealed seam. A third coating may be applied to the interior surface of the glove prior to joining the front and back panels together. The glove may also include an interior liner and an exterior protective member for added comfort and protection.
Description
- This application is a Divisional of U.S. patent application Ser. No. 12/974,795 filed Dec. 21, 2010, which application claims priority from U.S. Provisional Application No. 61/289,246, filed Dec. 22, 2009, the entire specifications of which are incorporated herein by reference.
- 1. Technical Field
- This invention generally relates to gloves. More particularly, the invention relates to protective gloves used in industries where workers encounter extremely high or extremely low temperature substances or potentially come into contact with any number of a variety of caustic substances. Specifically, the invention relates to a glove having a first coating on its exterior surface that penetrates and seals the seams and a second coating that overlays the first coating, and to a method of manufacturing gloves incorporating these elements.
- 2. Background Information
- In many industries, workers may have to handle articles that potentially can injure them. In the food services industry, for example, workers are frequently exposed to heated surfaces and hot liquids and gases that may cause severe burns. It has therefore become commonplace for workers in such environments to wear protective clothing, including temperature and fluid resistant gloves. The gloves in question need to prevent radiant heat from reaching the skin and they need to be fluid impermeable to prevent liquids and gases from penetrating into the interior of the glove, causing a contact-type injury. Similar requirements are necessary in industries where the workers are exposed to extremely cold substances, such as liquid nitrogen, or to caustic substances such as acids and bases that can severely damage flesh if they come into contact with the skin.
- While gloves currently known in these industries function quite well, one of the problem areas that persists is the tendency for liquids and gases to be able to penetrate the seams of the gloves. Since most gloves are stitched together, the fabric at the seams is effectively secured together only by small lengths of thread that are separated from each other by small gaps. Liquids and gases tend to penetrate into the interior of the glove through these small gaps and thereby cause injury to the wearer.
- There is therefore a need in the art for an improved protective glove that is temperature resistant and/or fluid impermeable, especially in the region of the seams, and to an improved method of manufacturing this type of glove.
- The device of the present invention comprises a temperature resistant and fluid impermeable protective glove having front and back panels joined together by at least one seam. During manufacture, the glove is dipped into a first thin liquid to coat the exterior surface of the glove. The first liquid penetrates through gaps in the seam and seals those gaps as it solidifies. The first liquid coated glove is then dipped into a second thicker liquid to coat the entire exterior surface including the sealed seam. A third coating may be applied to the interior surface of the glove prior to joining the front and back panels together. Preferably, the third coating is a blade-coating that improves the gloves cut and penetration strength. The glove may also include an interior liner and an exterior protective member for added comfort and protection.
- The preferred embodiment of the invention, illustrative of the best mode in which applicant has contemplated applying the principles, is set forth in the following description and is shown in the drawings and is particularly and distinctly pointed out and set forth in the appended claims.
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FIG. 1 is a front elevational view of a glove in accordance with the present invention being used to protect a worker's hand from a hot or caustic liquid; -
FIG. 2 is a front elevational view of the glove of the present invention showing the exterior surface thereof; -
FIG. 3 is an exploded side elevational view of the glove ofFIG. 2 being lowered over an expandable glove former; -
FIG. 3 a is an exploded front elevational view of the glove ofFIG. 2 being lowered over the expandable former; -
FIG. 4 is a side view of the glove on the glove former, illustrating the former being expanded to open up the glove's seams to obtain access to the gaps between the threads of the stitching; -
FIG. 5 is a side elevational view showing the glove and former being dipped into a tank of a first liquid to coat the exterior of the glove and showing some of that first liquid flowing into the expanded seam; -
FIG. 6 is a top cross-sectional view of the glove through line 6-6 ofFIG. 5 ; -
FIG. 7 is an enlarged view of the highlighted region ofFIG. 6 ; -
FIG. 8 is an enlarged view of the highlighted region ofFIG. 6 shown with the former returned to its non-expanded condition and illustrating how the first fluid has sealed the seam in the glove by filling the gaps between the threads; -
FIG. 9 is a side elevational view of the glove on the former when in a non-expanded state, with the glove being dipped a second time to apply a coat of a second liquid over the solidified first layer of the first liquid; -
FIG. 10 is a top cross-sectional view of the glove ofFIG. 9 removed from the former and showing the solidified first and second layers; -
FIG. 11 is an enlarged top view of the highlighted region ofFIG. 10 ; showing the second layer of the second liquid coated over the solidified first layer and forming the exterior surface of the glove; -
FIG. 11 a is an enlarged top view of the highlighted region ofFIG. 10 showing an alternative embodiment of the invention in which a blade-coating is additionally applied to the interior surface of an outer shell of the glove; and -
FIG. 12 is an exploded front view of the glove of the present invention along with a cotton liner that is received in the interior of the glove and which directly contacts the worker's hand, together with a Kevlar mitt that is slipped over the exterior surface of the top portion of the glove of the present invention to give added temporary protection to a workman's hand. - Referring to
FIGS. 1-12 , there is shown a protective glove in accordance with the present invention and generally indicated at 10.FIGS. 1 , 2 and 12 show various details of the structure ofglove 10.FIGS. 3-11 a illustrate howglove 10 is manufactured and how the process constructs the structure ofglove 10.FIG. 11 a illustrates an alternative structure for the glove in accordance with the present invention. - Glove 10 as illustrated herein is of a mitt style and includes a
thumb region 14 and asingle finger region 16 that would cover and protect all four of the wearer's fingers together. It will be understood that if it is desirable to protect the wearer's fingers in a different manner, that glove could alternatively include a thumb region and two, three or four finger regions. These alternative versions of the glove are not illustrated herein but are considered to fall within the spirit and scope of the present invention. - As indicated previously,
glove 10 is designed for applications where protection is needed from one or more of hot, cold or caustic substances that are able to penetrate into the interior of the glove through the seams. It should be understood that the term “temperature resistant” used herein means resistance to both heat and cold, and the term “fluid impermeable” means impermeability or resistance to both liquids and gases. It will further be understood thatglove 10 will also protect the wearer's hand from exposure to hot, cold and caustic solid materials but solid materials are less likely to be of such a nature that they are able to penetrate into the interior cavity of the glove through the seams. However, the glove of the present invention will also substantially prevent particulate-type solid materials that are extremely hot, extremely cold or extremely caustic from penetrating into the interior cavity through the glove's seams. Consequently, the term “fluid” should also be considered, for the purposes of this description, to refer to particulate-type solid materials and “fluid impermeability” to refer to impermeability of the seams with reference to particulate-type solid materials. -
FIG. 1 showsglove 10 in use protecting a person's hand against injury during exposure to ahot liquid 12. Glove 10 is designed to extend for a distance beyond the wrist of the wearer and to terminate approximately midway between the wrist and elbow. Alternately, the glove may extend entirely up the length of the user's arm. - Glove 10 is manufactured by cutting two substantially identical pieces of fabric and then stitching those pieces together to form an
outer shell 18.Outer shell 18 has afront 20 and aback 22 that are joined together by sewing along aseam 24 to form a plurality of stitches that hold the two pieces of fabric together.Front 20 is designed to abut the palm of the wearer andback 22 is designed to abut the back of the wearer's hand.Front 20 andback 22 bound an interior cavity 26 (FIG. 6 ), configured to receive the hand and a portion of the wearer's wrist and arm therein.Cavity 26 is accessed through an opening (not shown) at alowermost end FIG. 3 ) offront 20 andback 22. - In accordance with the present invention, the base fabric used to manufacture
outer shell 18 preferably is a poly/cotton, a cotton jersey or a cotton interlock fabric that is not blade-coated. Blade-coating is accomplished by applying a silicon or nitrile coating onto one face offront 20 and back 22 either before or after cutting them out and prior to sewing. Alternatively, the fabric used forfront 20 and back 22 is one of a poly/cotton, a meta-aramid and a poly-aramid fabric that is blade-coated. Whenfront 20 and back 22 are cut out and sewn together, the blade-coated face of the two pieces of fabric is disposed on the interior of the glove and therefore boundscavity 26. - In accordance with methodology of the present invention, once
front 20 and back 22 ofouter shell 18 have been sewn together,outer shell 10 is slipped over an expandable former 28 (FIGS. 3 and 3 a). Former 28 comprises afirst member 28 a and asecond member 28 b that are movable horizontally toward and away from each other. Former 28 is therefore able to be moved between a non-expanded condition (FIG. 3 ) and an expanded condition (FIG. 4 ). When in the non-expanded condition, first andsecond members midline 29. When in the expanded condition, first andsecond members vertical space 31. The former illustrated inFIGS. 3-4 is a former for a mitt and therefore includes athumb region 33 and asingle finger region 35. It will be understood, however, that if the glove to be manufactured is to have a thumb region and four finger regions, that the former used in that instance would likewise include a thumb region and four finger regions. - When
outer shell 18 is properly positioned on former 28, the former 28 is moved from its non-expanded condition (FIG. 3 ) to its expanded condition (FIG. 4 ). This movement causesfront 20 ofglove 10 to move slightly away from back 22 ofglove 10 thereby causingseam 24 to slightly open up along substantially the entire length thereof.Seam 24 is expanded to a degree sufficient to make theindividual strands 30 of the thread used to sewfront 20 and back 22 together more evident (FIGS. 4 & 6 ). Thestrands 30 of thread extend betweenfront 20 and back 22 and retain the two together.Seam 24 also includes a plurality ofgaps 32, where eachgap 32 is disposed between twoadjacent strands 30.Gaps 32 permit fluid communication throughseam 24 betweeninterior cavity 26 and the air surrounding theexterior surface 18 a ofouter shell 18. In other words,gaps 32 permit some flow of liquids and gases through theseam 24 betweeninterior cavity 26 and the air surroundingexterior surface 18 a ofouter shell 18. When former 28 is expanded,strands 30 become more visible and thegaps 32 are widened to a greater degree than whenouter shell 18 was in the non-expanded condition. - In accordance with yet another feature of the present invention, once
seam 24 is expanded (FIG. 6 ), afirst coating 34 of a suitable liquid is applied to theexterior surface 18 a ofouter shell 18. This step may require moving former 28 from a first location to a second location in some manner. Thus, in a first instance shown inFIG. 5 , former 28 with the expandedouter shell 18 disposed thereon is dipped into avat 36 holding a quantity of afirst liquid 38. This dipping procedure is the preferred manner of applyingfirst liquid 38. First liquid 38 preferably will makeouter shell 18 one or both of temperature resistant and fluid impermeable. A suitable first liquid 38 for this purpose would be nitrile or neoprene. First liquid 38 preferably is in the form of a low viscosity fluid, meaning that it is more thin and runny and less sticky. In order to attain the correct viscosity for thefirst liquid 38, the liquid may need to be heated. - When
outer shell 18 is dipped intofirst liquid 38, the liquid 38covers exterior surface 18 a andeffective obstructs gaps 32 thereby cutting off fluid communication betweeninterior cavity 26 and the air surroundingexterior surface 18 a ofouter shell 18. More particularly,first liquid 38 penetrates intoseam 24, flowing into and throughgaps 32 betweenadjacent strands 30 of threads. First liquid 38 also flows around andcoats strands 30 and may penetrate slightly into the same. First liquid 38 preferably also flows throughseam 24 and flows for a short distance along the interior surfaces offront 20 and back 22 (FIG. 7 ) that define and boundcavity 26. After being immersed for a length of time sufficient to allowfirst fluid 38 to flow into and throughgaps 32, outer shell is removed from being further exposed tofirst liquid 38. The length of time involved will vary with the viscosity of first fluid 38 from just a few seconds to several minutes. Whileouter shell 18 is being removed fromfirst liquid 38, former 28 is moved from its expanded condition back to its non-expanded condition. At the same time, the previously heated first liquid 38 begins to cool and solidify andseam 24 begins to close back to its original non-expanded condition. Thus,strands 30 move closer together andgaps 32 close but, as this occurs, a quantity of the coolingfirst liquid 38 becomes entrapped in thegaps 32 between adjacent strands 30 (FIG. 8 ) and thereby fills and seals the same. Thus, fluid communication through theseam 24 betweeninterior cavity 26 and the air surrounding the exterior ofouter shell 18 is effectively cut off. Sufficient time is allowed to pass after removingouter shell 18 from first liquid 38 to permit the quantity of first liquid 38 onexterior surface 18 a to cool and solidify to form afirst coating 34. Since the entireouter shell 18 preferably is dipped into first liquid,first coating 34 covers the entireexterior surface 18 a. It will be understood, however, that if only a portion ofouter shell 18 was dipped intofirst liquid 38, then first coating 34 will only form on the area ofouter shell 18 that was dipped.First coating 34 effectively seals off both the interior and exterior regions ofseam 24 because both of the interior and exterior regions thereof have had a quantity of first liquid 38 applied thereto. This sealing ofseam 24 ensures that liquids cannot flow throughgaps 30 inseam 24 and intointerior cavity 26 ofglove 10. Substantially the entire length ofseam 24 is sealed byfirst coating 34, thus renderingouter shell 18 liquid impermeable. Thisfirst coating 34 therefore substantially prevents liquid from being able to penetrate into theinterior cavity 26 ofglove 10 by way of entering throughseam 24 and thereby substantially reduces the likelihood of the worker being burned or injured by hot, cold or caustic substances. - It will be understood that instead of dipping
outer shell 18, alternatively, former 28 with the expanded outer shell thereon, may be moved through a zone in a piece of equipment (not shown) where a quantity of first liquid 38 is sprayed overexterior surface 18 a ofouter shell 18. Any other procedures for applying a quantity of the first liquid to theexterior surface 18 a ofouter shell 18 are also considered to fall within the spirit and scope of this invention. Dipping is, however, preferred as it ensures that substantially theentire seam 24 will be exposed tofirst liquid 38. - Referring to
FIGS. 9-11 , and in accordance with yet another feature of the present invention, onceseam 24 is sealed with first liquid 38, asecond coating 40 is applied to theexterior surface 34 a of thefirst coating 34 on outer shell. A suitable substance for use assecond coating 40 is nitrile, neoprene or any other substance that improves the temperature resistance and/or liquid impermeability qualities of the glove. Asecond coating 40 may also be provided to give the glove better abrasion and/or gripping qualities and materials that provide these features can be used to formsecond coating 40. - At this point, the first-liquid coated
outer shell 18 is still engaged on former 28 and the former is in the non-expanded condition. Keeping former 28 in this non-expanded condition, the former is moved to permit asecond coating 40 to be applied to the first-liquid coatedouter shell 18. Preferably,second coating 40 is applied by dipping the first-liquid-coatedouter shell 18 and former 28 into avat 42 of a suitable second liquid 44. Any other suitable method of applying the second coating, such as spraying, may be employed without departing from the spirit and scope of the present invention. Preferably,second liquid 44 is of a higher viscosity than is first liquid 38, meaning that second liquid 44 preferably is more tacky and thicker thanfirst liquid 38. In order to attain the correct viscosity for thesecond liquid 44, the liquid may need to be heated or cooled to a certain degree. When the first-liquid-coatedouter shell 18/34 is dipped intosecond liquid 44, it coats and sticks toexterior surface 34 a offirst coating 34 and completely covers the area of the glove that is dipped therein. The twice coatedouter shell 18 on former 28 is then removed fromvat 42 and, once again, sufficient time is allowed to permit second liquid 44 to cool, solidify or set so as to form thesecond coating 40 over theexterior surface 34 a offirst coating 34. Once both of the first andsecond coatings glove 10 is completed andglove 10 is removed from former 28 by sliding it off the same. -
FIG. 11 a is an enlarged top view of the highlighted portion ofFIG. 10 showing an alternative embodiment of the invention.FIG. 11 a shows that a blade-coating 46 has been applied to the fabric used to construct the front 20 and back 22 ofouter shell 18 before the front and back are sewn together. Blade-coating 46 preferably comprises a silicon or nitrile coating, or any other substance that improves the temperature resistance, fluid impermeability or the resistance of the glove to penetration or cuts from sharp objects. This blade-coating layer also tends to enable the glove to be used for applications involving higher temperatures than a glove that includes only the first andsecond coatings -
FIG. 12 shows theglove 10 being used as part of a protection assembly for a worker. The assembly includes afabric liner 50, theglove 10 described above, and a separateprotective member 56.Fabric liner 50 preferably is made from a soft material that is feels good to the touch, such as cotton. Thecotton liner 50, is inserted into thecavity 26 ofglove 10 such that an exterior surface of the liner abuts the interior surface ofglove 10. Complementary hook and loop fasteners are applied toliner 50 andglove 10.FIG. 12 shows a strip of hook andloop fastener 52 applied to the end portion ofliner 50 and a complementary strip of hook andloop fastener 54 applied to an end portion of the interior surface ofglove 10. The hook and loop fastener holdsliner 50 andglove 10 together, but allows them to be separated for cleaning or replacement purposes. It will be understood that the exact configurations and locations of the hook andloop fasteners glove 10 andliner 50. -
Protective member 56 is in the form of a mitt that is slidable over theexterior surface 40 a of the first and second liquid coatedglove 10. Preferably, thismitt 56 is manufactured from a material such as KEVLAR and provides extra strength and heat resistance toglove 10 for temporary applications where such qualities are required. Specifically, theprotective member 56 is manufactured from a material that is one or more of temperature resistant, fluid impermeable, provides improved cut strength (i.e., resistance to cuts) and penetration strength (i.e., resistance to penetration by sharp objects). - As illustrated in
FIG. 12 ,protective member 56 has a length from atop end 56 a of a finger region to abottom end 56 b adjacent an opening to the interior cavity thereof; andglove 10 has a length from atop end 10 a of a finger region to abottom end 10 b adjacent the opening into the interior cavity of the glove, and wherein the length of theprotective member 56 is substantially smaller than the length of theglove 10. - In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be implied therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed.
- Moreover, the description and illustration of the invention are an example and the invention is not limited to the exact details shown or described.
Claims (20)
1. A method of manufacturing a temperature resistant and fluid impermeable glove comprising the steps of:
sewing an outer shell of the glove by stitching at least a first piece of fabric to a second piece of fabric with strands of thread so as to form at least one seam; and
applying a first liquid to an exterior surface of the outer shell such that the first liquid coats the exterior surface and a quantity of the first liquid migrates into the at least one seam and substantially seals the same.
2. The method as defined in claim 1 , further comprising the step of:
stretching the glove to open up a plurality of gaps in the at least one seam prior to applying the first liquid to the outer shell.
3. The method as defined in claim 2 , wherein the step of stretching the glove includes:
placing the outer shell over an expandable former when the former is in a non-expanded condition.
4. The method as defined in claim 3 , wherein the step of stretching the glove further includes the step of:
moving the former to an expanded condition so that the at least one seam is expanded and the plurality of gaps open up in the seam, with a single gap being disposed between each pair of adjacent strands of the thread.
5. The method as defined in claim 4 , wherein the step of applying the first liquid to the outer shell occurs when the former is in the expanded condition.
6. The method as defined in claim 2 , further comprising the step of:
filling substantially each of the plurality of gaps opened up in the at least one seam with the first liquid.
7. The method as defined in claim 6 , further comprising the step of:
moving the former to a non-expanded condition after the application of the first liquid.
8. The method as defined in claim 7 , further comprising the steps of:
solidifying the first liquid to form a first coating on the outer Shell.
9. The method as defined in claim 8 , wherein the step of solidifying the first liquid includes the step of:
allowing a pre-set period of time to pass after moving the former to a non-expanded position.
10. The method as defined in claim 8 , further comprising the step of:
applying a second liquid to an exterior surface of the first coating.
11. The method as defined in claim 10 , further comprising the step of:
solidifying the second liquid as a second coating over the exterior surface of the first coating and over regions of the at least one seam where the gaps were previously filled with the first liquid.
12. The method as defined in claim 10 , wherein the step of solidifying the second liquid further comprises the step of:
allowing a pre-set period of time to pass after applying the second liquid to the exterior surface of the first coating.
13. The method as defined in claim 10 , wherein the step of applying the second liquid includes:
maintaining the former in the non-expanded condition until the second liquid has solidified.
14. The method as defined in claim 13 , further including the step of:
removing the twice-coated outer shell from the former.
15. The method as defined in claim 1 , wherein the step of applying the first liquid to the exterior surface of the outer shell includes the step of:
dipping the outer shell into a quantity of the first liquid while the outer shell is engaged on the expanded former.
16. The method as defined in claim 1 , wherein the step of applying the first liquid includes:
dipping the outer shell into a quantity of a low viscosity liquid.
17. The method as defined in claim 10 , wherein the step of applying the second liquid to the exterior surface of the first coating includes the step of:
dipping the first liquid coated outer shell into a quantity of the second liquid while the outer shell is engaged on the non-expanded former.
18. The method as defined in claim 10 , wherein the step of applying the second liquid to the outer shell includes the step of:
dipping the first liquid coated outer shell into a quantity of a high viscosity liquid.
19. The method as defined in claim 10 , wherein the steps of applying one or both of the first and second liquids further includes the step of:
heating the one or both of the first and second liquids prior to application thereof.
20. The method as defined in claim 1 , wherein the step of sewing the outer shell includes the steps of:
selecting a fabric, where the fabric has an interior surface and an exterior surface;
blade-coating the interior surface of the fabric;
cutting a front panel and a back panel from the fabric;
sewing the front panel to the back panel such that the interior surfaces of the front and back panels form an interior surface of the outer shell.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/795,694 US20130196066A1 (en) | 2009-12-22 | 2013-03-12 | Method of manufacturing a protective glove |
Applications Claiming Priority (3)
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US28924609P | 2009-12-22 | 2009-12-22 | |
US12/974,795 US20110145967A1 (en) | 2009-12-22 | 2010-12-21 | Protective glove and method of manufacturing the same |
US13/795,694 US20130196066A1 (en) | 2009-12-22 | 2013-03-12 | Method of manufacturing a protective glove |
Related Parent Applications (1)
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US12/974,795 Division US20110145967A1 (en) | 2009-12-22 | 2010-12-21 | Protective glove and method of manufacturing the same |
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US20130196066A1 true US20130196066A1 (en) | 2013-08-01 |
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US12/974,795 Abandoned US20110145967A1 (en) | 2009-12-22 | 2010-12-21 | Protective glove and method of manufacturing the same |
US13/795,694 Abandoned US20130196066A1 (en) | 2009-12-22 | 2013-03-12 | Method of manufacturing a protective glove |
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US12/974,795 Abandoned US20110145967A1 (en) | 2009-12-22 | 2010-12-21 | Protective glove and method of manufacturing the same |
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US (2) | US20110145967A1 (en) |
Cited By (4)
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US20160143379A1 (en) * | 2013-07-22 | 2016-05-26 | Summit Glove Inc. | Glove having a widened cuff and with finger regions that include a flexible hinge region |
US9370209B2 (en) | 2014-09-19 | 2016-06-21 | Summit Glove Inc. | Method of fabricating a glove with a widened cuff area |
USD893129S1 (en) | 2016-05-25 | 2020-08-18 | Summit Glove Inc. | Patterned glove with a flared cuff |
USD894526S1 (en) | 2016-05-25 | 2020-09-01 | Summit Glove Inc. | Patterned glove with a straight cuff |
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US10765157B2 (en) | 2013-07-22 | 2020-09-08 | Summit Glove Inc. | Protective device for use with a glove |
US20170099891A1 (en) | 2013-07-22 | 2017-04-13 | Summit Glove Inc. | Protective device for use with a glove |
US10750803B2 (en) | 2013-07-22 | 2020-08-25 | Summit Glove Inc. | Protective device for use with a glove |
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US11925221B2 (en) | 2013-07-22 | 2024-03-12 | Summit Glove Inc. | Protective device for use with a glove having textured grip |
US20150082504A1 (en) * | 2013-09-24 | 2015-03-26 | John D. Neff | Molded rubberized toddler primer ball glove |
US20160029712A1 (en) * | 2014-08-04 | 2016-02-04 | Summit Glove Inc. | Protective article with flexible protective pads |
CN104905431A (en) * | 2015-05-25 | 2015-09-16 | 张家港市协和医疗器械有限公司 | Sterilization glove production method |
US10806197B2 (en) * | 2016-07-26 | 2020-10-20 | Emma Spencer | Oven mitt and pot holder devices with integrated fire extinguishing blanket |
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US20160143379A1 (en) * | 2013-07-22 | 2016-05-26 | Summit Glove Inc. | Glove having a widened cuff and with finger regions that include a flexible hinge region |
US9370209B2 (en) | 2014-09-19 | 2016-06-21 | Summit Glove Inc. | Method of fabricating a glove with a widened cuff area |
USD893129S1 (en) | 2016-05-25 | 2020-08-18 | Summit Glove Inc. | Patterned glove with a flared cuff |
USD894526S1 (en) | 2016-05-25 | 2020-09-01 | Summit Glove Inc. | Patterned glove with a straight cuff |
USD895228S1 (en) | 2016-05-25 | 2020-09-08 | Summit Glove Inc. | Patterned glove with a straight cuff |
USD927083S1 (en) | 2016-05-25 | 2021-08-03 | Summit Glove Inc. | Flexible glove with a honeycomb pattern and flared cuff |
USD927792S1 (en) | 2016-05-25 | 2021-08-10 | Summit Glove Inc. | Flexible glove with a zigzag pattern and flared cuff |
USD928416S1 (en) | 2016-05-25 | 2021-08-17 | Summit Glove Inc. | Flexible glove with a pebble pattern and a flared cuff |
USD938658S1 (en) | 2016-05-25 | 2021-12-14 | Summit Glove Inc. | Flexible glove with a raised diamond pattern and flared cuff |
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US20110145967A1 (en) | 2011-06-23 |
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Legal Events
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AS | Assignment |
Owner name: SUMMIT GLOVE INC., OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HULL, JAMES L.;REEL/FRAME:029972/0213 Effective date: 20101217 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |