Protective device for use with a glove having textured grip

Patent metadata

Field	Value
Publication number	US-11925221-B2
Application number	US-202217874894-A
Country	US
Kind code	B2
Filing date	Jul 27, 2022
Priority date	Jul 22, 2013
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

A glove has a protective member in the thumb-crotch region and includes a textured outer surface. The protective member is configured to protected against slicing done by sharp objects. The textured outer surface enables grip ability in greasy environments. The textured outer surface may be formed via a foaming process during manufacture of the glove. There may be a colored layer between an inner liner and the protective member that establishes a color splash effect in the event that a portion of the glove ruptures or fails.

First claim

The invention claimed is:

1. A method comprising:
attaching a glove liner to a glove mold, the glove liner comprising a first finger sleeve and a thumb sleeve, and the glove liner defining a thumb-crotch region that extends from a palmar side to a dorsal side between the first finger sleeve and the thumb sleeve of the glove liner;
applying a colored layer in the thumb-crotch region;
curing the colored layer within the thumb-crotch region, wherein the colored layer is liquid impermeable after curing;
connecting a protective member to the glove liner in the thumb-crotch region;
heating and stirring an aqueous polymeric emulsion;
foaming the aqueous polymeric emulsion;
dipping the glove liner, the colored layer, and the protective member into a tank containing the aqueous polymeric emulsion that has been heated, stirred, and foamed, wherein the protective member is fully submerged into the aqueous polymeric emulsion within the tank while dipping the glove liner and protective member;
removing the glove mold that carries the glove liner, the colored layer, and the protective member from the tank; and
curing the aqueous polymeric emulsion on the glove mold above the glove liner, the colored layer, and the protective member in the thumb-crotch region to result in a glove having a textured outer layer defining a grip surface in the thumb-crotch region above the protective member that is above the colored layered and glove liner and is adapted to assist with grip ability for a boundary layer of oil or grease on the grip surface, wherein curing the aqueous polymeric emulsion on the glove liner above the protective member within the thumb-crotch region to result in the glove having the textured outer layer defining the grip surface above the protective member further comprises forming a shape in the textured outer layer having a configuration that opens outward and is located above the protective member and above the colored layer;
wherein forming the shape in the textured outer layer having a configuration that opens outward and is located above the protective member further comprises:
forming an edge that defines a lateral ridge in the textured outer surface above the protective member, wherein the lateral ridge is aligned in direction that extends around a circumference of the first finger sleeve or the thumb sleeve on the glove.

2. The method of claim 1 , further comprising:
painting the colored layer onto the glove liner within the thumb-crotch region prior to connecting the protective member to the glove liner.

3. The method of claim 1 , further comprising:
connecting the protective member after the colored layer has fully cured.

4. The method of claim 1 , further comprising:
forming a valley in the textured outer layer between the lateral ridge and an adjacent lateral ridge, and above the protective member and the colored layer in the thumb-crotch region.

5. The method of claim 4 , further comprising:
forming a striation that extends across the valley between adjacent lateral ridges, and above the protective member and the colored layer in the thumb-crotch region, wherein the striation extends in a generally longitudinal direction associated with the first finger sleeve or the thumb sleeve.

6. The method of claim 1 , wherein curing the aqueous polymeric emulsion on the glove liner is accomplished by washing and heating to vulcanization temperature the aqueous polymeric emulsion while connected to the glove liner.

7. The method of claim 1 , wherein heating and stirring an aqueous polymeric emulsion further comprising:
heating the aqueous polymeric emulsion to a temperature in a range from 18° C. to 20° C.

8. The method of claim 7 , wherein the aqueous polymeric emulsion comprises latex, further comprising:
circulating latex along a bottom of the tank past one or more heat exchangers;
enabling the latex to rise past a whipping stirrer adapted to maintain the foam quality, and then across the surface of the latex in the tank at a speed similar to the speed of travel of the glove liner with the protective member as the glove liner and protective member are passed through the tank.

9. The method of claim 1 , wherein foaming the aqueous polymeric emulsion comprises:
maintaining air content of the foam a range from 5% to 50% on a volume basis; and
adding a surfactant to stabilize the foam.

10. The method of claim 9 , wherein the surfactant comprises a hydrophobic dodecanoic tail.

11. The method of claim 9 , further comprising:
adjusting the viscosity of the foam.

12. The method of claim 11 , wherein adjusting the viscosity of the foam comprises:
driving an impeller at a first desired speed; and
refining a size of an air bubble in the foam by driving the impeller at a second desired sped that is reduced from the first desired speed.

13. The method of claim 11 , further comprising:
reducing a modulus of elasticity of the cured aqueous polymeric emulsion that is adapted to increase flexibility of the glove.

14. The method of claim 11 , further comprising:
maintaining air content in a range from 5 to 15 volumetric percentile of foams that have closed air bubbles.

15. The method of claim 1 , wherein the textured outer layer is formed by steps comprising:
providing air bubbles adjacent to the outers surface that open outward when cured thereby providing increased roughness.

16. The method of claim 1 , wherein dipping the glove liner and protective member into the tank further comprises:
controlling a speed of a dip line assembly, wherein the speed of the dip line assembly moves the glove mold in a range from 4 ft/min to 14 ft/min.

17. The method of claim 16 , wherein curing the aqueous polymeric emulsion on the glove liner further comprises:
controlling an oven having a temperature in a range from 95° C. to 155° C.; and
moving the glove mold carrying the liner, protective member, and aqueous polymeric emulsion through the oven.

18. A method comprising:
attaching a glove liner to a glove mold, the glove liner comprising a first finger sleeve and a thumb sleeve, and the glove liner defining a thumb-crotch region that extends from a palmar side to a dorsal side between the first finger sleeve and the thumb sleeve of the glove liner;
connecting a protective member to the glove liner positioned in the thumb-crotch region;
heating and stirring an aqueous polymeric emulsion;
foaming the aqueous polymeric emulsion;
dipping the glove liner and the protective member into a tank containing the aqueous polymeric emulsion that has been heated, stirred, and foamed, wherein the protective member is fully submerged into the aqueous polymeric emulsion within the tank while dipping the glove liner and protective member;
removing the glove mold that carries the glove liner and the protective member from the tank; and
curing the aqueous polymeric emulsion on the glove mold above the glove liner and the protective member in the thumb-crotch region to result in a glove having a textured outer layer defining a grip surface in the thumb-crotch region above the protective member that is above glove liner and is adapted to assist with grip ability for a boundary layer of oil or grease on the grip surface, wherein curing the aqueous polymeric emulsion on the glove liner above the protective member within the thumb-crotch region to result in the glove having the textured outer layer defining the grip surface above the protective member further comprises forming a shape in the textured outer layer having a configuration that opens outward and is

Assignees

• Summit Glove Inc

Inventors

• Hull James L

Classifications

• A41D13/082 Primary

  especially for the inner part of the hand · CPC title

• A41D13/081

  Hand protectors · CPC title

• A41D19/0006

  made of several layers of material · CPC title

• A41D19/01505 Primary

  resistant to mechanical aggressions, e.g. cutting. piercing · CPC title

• A41D19/01529

  with thermal or fire protection · CPC title