WO1991004682A1

WO1991004682A1 - Protective apparel

Info

Publication number: WO1991004682A1
Application number: PCT/US1990/005537
Authority: WO
Inventors: James G. Mclaughlin
Original assignee: Mclaughlin James G
Priority date: 1989-10-02
Filing date: 1990-09-28
Publication date: 1991-04-18
Also published as: CA2042595C; EP0446343A1; US5048126A; CA2042595A1; AU6605490A; JPH04503694A; EP0446343A4

Abstract

Protective apparel for covering various portions of an individual such as the head, arms, and feet. The protective apparel is made of a heat sealable material which is heat sealed along predetermined surfaces (18, 19, 20) and glued along other surfaces (26). An elastic material is secured in the material to secure the finished apparel to either the head, arms or feet of the user.

Description

PROTECTIVE APPAREL

Field of the Invention The present invention is directed to protective apparel and more particularly to such apparel which covers various portions of an individual such as the head, arms and feet.

Background of the Invention Presently apparel such as coverings for the head (hair), shoe coverings, etc., are made of a single piece of material having an elastic band sewn therein. The covering, typically, is cut from the material in the desired shape (generally circular) or rectangular and the outer edges are folded inwardly to receive an elastic band which is generally hand sewn therein. An excessive amount of material is generally used in forming such coverings. In forming a cap, for example, a plurality of circles of predetermined diameters are laid out in side-by-side columns on a rectangular sheet and these circles are then cut at the desired diameters. As can be seen the material between the contacting points of the adjacent circles are wasted.

In forming shoe coverings, the edges are generally seamed together by stitching, etc. The seam generally is provided with a "rooster tail" which means that excess material protrudes past the seam. Or, in the absence of such "rooster tails", the material is folded back upon itself and the seam is secured together by ultrasonic techniques. Again, excessive material is required to permit the folding of the material at the seam. It is an object of the present invention to provide a low cost protective covering to be worn on various parts of an individual.

It is a further object of the present invention toprovide such a covering which may be produced in a rapid, facile, and inexpensive process. present invention shown worn on the head of an individual with the elastic band of the cap expanded around the wearer's head.

Figure 2 is a front view of the cap of Figure 1 and illustrates the elastic band in stretched relation.

Figure 3 is a top view of the cap of Figure 1 with the elastic band in contracted relation.

Figure 4 is layout view of a typical sheet of material showing the pattern of side-by-side circular caps for the cut out procedure as is generally used in the art. Figure 5 is a layout view of the pattern used in producing the caps of the present invention.

Figure 6 is an elevational view of a shoe covering of the present invention worn on the foot of an individual. Figure 7 is a plan view of the foot covering of Figure 6.

Figure 8 is plan view similar to Figure 5 illustrating the layout pattern for simultaneously• producing two shoes according to the principles of the present invention.

Figure 9 is an elevational view taken along line 9-9 of Figure 8, showing the sheet of material in partially folded position.

Figure 10 is an elevational view of a sleeve made in accordance to the principles of the present invention. Figure 11 is a layout of the pattern used in producing the sleeves of Figure 10.

Figure 12 is an alternate layout view showing another pattern for producing the caps of the present invention.

Figures 13 - 16 are views illustrating alternate layout patterns for producing the shoes of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT As seen in Figure 1, a cap 8 is shown to include a body portion 10 having an elastic band 12 for snug fitting relation around the head of an individual. Cap 8 is shown having respective edges 18 and 20 disposed in sealed relation along a seal line 19. Each section is provided with a lower portion 22 and 24 having the elastic band 12 therein. Figure 3 is a top view of the cap shown in Figure 2 and illustrates the elastic band positioned in contracted relation around an opening 26 of the cap. In making the cap of the present invention two sheets of material are provided with the pattern shown in Figure 5. the sheets are laid one over the other, in overlaying relation and are glued and heat sealed in the manner described hereinbelow. As can be seen in Figure 5 a first set 28 of the ellipsoidal half-sections 14 and 16 are positioned^•in adjacent relation with the straight edges 30 and 32, respectively, of half sections 14 and 16 disposed in spaced relation along a centerline 34. A second set 36 of the ellipsoidal half-sections 14 and 16 is disposed with the apex 38 and 40 thereof, respectively, thereof disposed adjacent to and in spaced relation with centerline 34. Four fold lines 42, 43, 45 and 46 are disposed along the length of the roll of material. Fold lines 42 and 46 are disposed adjacent edges 48 and 50, of material 25. Fold lines 43 and 45 are positioned on opposite sides of centerline 34. A center cut line 44 is disposed along the longitudual centerline 34 of the length of the roll of material 25. A first pair of continuous strips 27 of elastic is positioned between edge 48 and fold line 42. Asecond pair of strips 29 of elastic is positioned'between the centerline 34 and fold line 43 of section 14 along the length of fold line 43. A third pair of strips 31 of elastic is positioned between centerline 34 and fold line 45 of section 20 along the length of fold line 45. A fourth pair of strips 33 of elastic is positioned between edge 50 and fold line 46. Glue is intermittently applied along the length of elastic strips 27, 29, 31 and 33 in a manner described hereinbelow. The sheet of material is then cut along the outline 44, and each section is folded along fold lines 42 and 43 and 45 and 46 to enclose the elastic band and glue within the folds. The two layers of overlaying relation and the two layers of material are then passed through a heat sealing device where the edges of the ellipsoidal sections 14 and 16 are heat sealed together. The caps are made in the following sequence. First, two rolls of material are unrolled and placed in overlaying relation and are cut down cut line 44 and the elastic and glue is applied as discussed above. Both sheets are then folded along fold lines 42, 43, 45 and 46 (eight folds) and the folds are pressed together in a presser to secure the elastic in the folds. The folded material is then heat sealed and cut along edges 18 and 20 by a heat sealing device. The cutting and heat sealing is accomplished by a hot cutting bar (not shown) which seals as it cuts the desired configuration.

A shoe covering 52 made in accordance with the principles of the present invention is illustrated in Figures 6 and 7. Shoe covering 52 is shown to include an opening 54 having an elastic band 56 therearound for snug fitting engagement the ankle of a wearer. The shoe is shown to be provided at its upper and lower peripheral surfaces 58 and 60 with the elastic band 56 is sealedrelation thereto.

The shoe covering is simultaneously formed in pairs. Figure 8 illustrates a roll of material partially unrolled and spread out to form a continuous planar sheet 64 of material. The sheet 64 forms four equal sections 66, 68, 70 and 72 divided by a centerline 74 and two spaced parallel fold lines 76 and 78. To form the shoe covering, a first pair of elastic strips 80 is positioned along the length of one side of fold line 76, a second pair of elastic strips 82 is positioned on the opposite side of fold lines 76 along the length thereof. A third and fourth pair of elastic strips 84 and 86 are similarly placed along fold line (centerline) 74, and, a fifth and sixth pair of elastic strips 88 and 90 are likewise positioned along fold line 78. the elastic strips are held in extended relation along the fold lines. A glue is applied along the length positioned along the fold lines. At the same time.that the glue and elastic is applied, a reinforcing strip 92 is glued partially along the length of fold lines 76 and 78. As shown in Figure 8, the reinforcing strip is placed over

5 the glue and elastic along the length of fold lines 76 and 78. The reinforcing strip is applied in place at the same time that the glue and elastic is applied.

After the glue, elastic strips and reinforcing material is in place, the sheet of material 64 is folded

10 along fold lines 74, 76 and 78 as indicated in Figure 9 so that edge 94 engages the elastic strips 84 (and glue) and edge 96 engages the elastic strips 86 (and glue) . The folded material is then passed through a sealing device which presses edge 94 along centerline 74, sections 66 and

1568 together along fold line 76, sections 70 and 72 together along fold line 78 and edge 96 along centerline 74; Ends 77 and 79, (Figures 6 and 7) of each shoe are heat sealed and cut at this stage of the operation. A nonskid surfaceis provided on the bottom of each shoe.

20 A pair of slits 98 and 100 are made through the reinforcing strips, partially along the length of the shoe (terminating at lines 101 and 103 as shown in Figure 8) to form the opening 54 (Figures 5 and 6) for receiving the wearer's foot. The material is then cut along the

25 centerline to form a pair of foot coverings.

The shoes are formed in the following sequence. First, a sheet of material is unwound and a small strip (reinforcing material 92) is taken from an edge or edges of the material. A non-skid pattern is then applied to the

30 surface forming the bottom of the shoe. The non-skid surface is printed on the surface with a Gavier Printer. Glue and elastic and the reinforcing strip is then applied to the appropriate locations as discussed above. The material is then folded along the fold lines and ankle

35 opening 54 is produced by the slit through the reinforcing members at the appropriate positions as discussed above and shown in Figure 8. The sections of material is then pressed along the fold lines (Figure 9) and cut down cut Cutting and heat sealing is accomplished by a thin hot wirelike rod which, as it passes through the material at the ends of each shoe it serves to simultaneously cut and seal the shoe ends. Figure 10 illustrates a sleeve made in accordance to the principles of the present invention. As seen in Figure 10, a sleeve 106 is shown to include a body portion 108, a shoulder end portion 110, and a wrist end portion 112.

Figure 11 illustrates the pattern formed on a roll ° of material 109 for making the sleeve. Two layers of material having identical pattern layouts are provided for overlaying relation. As seen in Figure 11 each sleeve is shown to include identical sections 110 and 112, 114 and 116. (Only the lower sheet is shown) . Each of the 5 sectionsllO, 112, 114 and 116 includes ends 118 and 120 and each end 118 and 120 is respectively provided with fold lines 122 and 124. An elastic member 126 and glue is disposed adjacent each end 118 and 120. Ends 118 and 120 are folded to enclose the elastic and glue and the material 0 s heated and pressed along the fold lines. The material is cut and heat sealed along the edges 128, 130, 132, 134 and 136 to form the sleeves.

It is to be understood that while the sleeves are shown to be tapered they may also be made rectangular, if 5 desired.

Figure 12 illustrates an alternative manner in which the caps of Figures 1-3 may be laid out. As seen in Figure 12 only a single column of caps are laid out with each ellipsoidal half-section 18 and 20 position in a column. 0 Assembly of the sheets of material is accomplished in the same manner as discussed, supra in conjunction with Figure 5.

Figures 13 and 14 illustrate an alternate approach used in making a shoe covering. As seen in Figure 13, a 5 sheet of material 140 is laid out and glue and elastic 142 is applied along the centerline 144 thereof. Additional strips 146 and 148 of glue and elastic and glue is applied along the edges 150 and 152 of the sheet. Cuts, indicated and 152 and the end areas 158 and 160 are folded over the elastic and glue. The sheet is then folded along centerline 144 for mating relation of the open portions of edges 150 and 152. Sheet 140 is then placed in a presser

5 where the edges 150 and 152 (except at areas 158 and 160) are pressed together to form a glue seam. The folded sheet is then cut and heat sealed by a heat sealer, sealing edges 162 and 164 to form the covering. Figure 14 illustrates the configuration of sheet 140 while the sheet is still

10 spread out with the edges 150 and 152 folded in the areaslδδ and 160.

Figure 15 illustrates still another alternate approach used in making a shoe covering. As seen in Figure 15, a sheet of material 164 is provided with fold lines 166

15 and 168 along the length of edges 170 and 172, respectively. A center fold line 174 is also provided along the centerline of the sheet of material. Glue and elastic 176 is provided along the centerline and glue and elastic 178 and 180 is provided along the edges 170 and

20172. The edges are folded along the fold lines 166 and 168 and the sheet of material is folded along the centerline 174.

Figure 16 illustrates the sheet of material 164 of Figure 15 with the edges 170 and 172 folded along fold

25 lines 166 and 168 as described. With the edges folded as shown in Figure 16, glue 180 is then applied to the back surfaces 182 and 184 of a portion 186 and 188 of edges 170 and 172. The glue ends at lines 190 and 192. After the elastic and glue has been appropriately applied, the sheet

30 is folded along line 174 and pressed in a presser. The shoe covering is then acted on by a heat sealing device which applies heat fcr heat sealing ends 194 and 196 thereof and also cuts the material. A reinforcing strip 92 as discussed supra may be used if desired.

35 It is to be understood that the elastic may be applied in the manner disclosed in U.S. Patent No. 4,842,666 assigned to H. B. Fuller Company, St. Paul, Minn. Or, if desired, the Nordson Model CF 3200 metering spray Corporation, Westlake, Ohio 44145.

It is also to be understood that the coverings may be made of many types of heat sealable materials. some such materials are: polypropolene, polyethylene, TYVEK, etc., or any of many combined materials, such as polyethylene coated polypropolene.

Claims

I Claim:

1. A protective apparel covering having an opening into which appendages such as the arms, legs and head of the trunk of a person is inserted, said apparel disposed for being worn on said appendages and comprising: a pair of similar sections of heat sealable material having mating edge surfaces provided with a predetermined configuration and predetermined ones of said edge surfaces of each said section disposed for heat sealed relation therebetween; said similar sections having matching adjacent portions disposed in unsealed relation and defining peripheral surfaces of an appendage receiving opening between said sections; and, elastic band means secured in glued relation to said peripheral surfaces of said appendage receiving opening for snug-fitting engagement of said peripheral surfaces of said appendage receiving opening with said appendages of a wearer of said covering. 2. A protective covering as set forth in claim 1 wherein said elastic band is disposed on said unsealed edges in a continuous pattern.

3. A protective covering as set forth in claim 2 wherein said peripheral surfaces of said appendage receiving opening is disposed in folded relation to receive said elastic band in said glued relation in said folded edges whereby said peripheral edge surface of said appendage receiving opening is retained in said folded relation solely as a result of said glued relation. 4. A protective covering as set forth in claim 3 wherein said pair of similar sections is comprised of two pieces of material having an ellipsoidal configuration defined by a curved edge surface and a straight edge surface. 5. A covering as set forth in claim 4 wherein said curved edge surface of each of said ellipsoidal sections define said predetermined ones of said heat sealed surfaces. straight edges of said sections define said unsealed edges of said covering to form a covering for the head of the wearer.

7. A covering as set forth in claim 3 wherein saidpair of sections are two rectangular sections of a single sheet of material, said covering disposed for covering the feet of a wearer.

8. A covering as set forth in claim 7 wherein said rectangular sections each include font and rear edge surfaces defining said heat sealed edges.

9. A covering as set forth in claim 8 wherein said rectangular sections each include top and bottom edges surfaces defining said unsealed surfaces.

10. A covering as set forth in claim 9 wherein top surface of said sections are provided with said elastic band extending along the length thereof.

11. A covering as set forth in claim 10 wherein said bottom edge surfaces of each of said rectangular sections is provided with said elastic band disposed along the length thereof, said bottom edge surfaces of each said rectangular sections disposed in glued relation forming a seam.

12. A covering as set forth in claim 3 wherein said sections are a pair of elongated sections forming sleeves to be worn on the arms of a wearer.

13. A covering as set forth in claim 12 wherein each of said elongated members includes side edge surfaces defining said heat sealable surfaces.

14. A covering as set forth in claim 13 wherein said unsealed surfaces is defined by opposite ends of said elongated members forming the shoulder and wrist portion of said sleeve.

15. A covering as set forth in claim 14 wherein said elastic is positioned in glued relation in a seam at said opposite ends of said elongated sections.

16. A covering as set forth in claim 15 wherein said sections are rectangular.

17. A covering as set forth in claim 15 wherein 18. A method of producing a protective apparel in the form of a covering for the appendages of the trunk of an individual such as the head, arms or feet of the individual, said covering including appendage receiving openings comprising the steps of: providing a pair of similar sections of heat sealable material with first and second mating surfaces having a predetermined configuration, said first mating surfaces disposed for secured relation therebetween, said second mating surfaces disposed for providing said appendages receiving opening; simultaneously applying adhesive and an elastic band to predetermined portions of said sections including around the peripheral surfaces of said appendage receiving opening; folding a portion of said material over said adhesive and said elastic band along the peripheral surfaces of said appendage receiving opening; pressing said folded portion over said adhesive and elastic for secured relation of said elastic in said folded portion; and, heat sealing at least said first mating surfaces of said pair of sections of material for the secured relation thereof to thus form said covering and, cutting said formed covering adjacent said heat sealed mating surfaces, said heat sealing and cutting being simultaneously accomplished.

19. A method as set forth in claim 18 wherein said pair of sections is comprised of similar portions of a single sheet of said material.

20. A method as set forth in claim 18 wherein said pair of sections is comprised of two separate sheets of material.