Not applicable to this application.
Not applicable to this application.
Field of the Invention
The present invention relates generally to protective clothing and more specifically it relates to a protective clothing system for protecting a user from high velocity particles and lacerating objects.
Description of the Related Art
Any discussion of the related art throughout the specification should in no way be considered as an admission that such related art is widely known or forms part of common general knowledge in the field.
Workers in various types of industries (e.g. oil drilling industry, coal mining industry, rock crushing, etc.) are subject to work environments where their bodies may be penetrated by particles (e.g. small, high-velocity particles) or subject to severe lacerations by objects (e.g. cable strand lash. For example, jobs that involve hammering operations or working in explosive environments may generate flying particles such as metal particles and rock particles that can cause bodily injury to the worker. In addition, jobs that require the worker to work near objects under tension (e.g. cables under tension) may be subject to a sudden failure resulting in a laceration.
Conventional work clothing is not suitable for protecting a worker from flying particles or lacerating objects. Protective clothing such as body armor that is suitable for protecting workers is simply too heavy, bulky and difficult to move within to be worn for extended periods of time.
Because of the inherent problems with the related art, there is a need for a new and improved protective clothing system for protecting a user from high velocity particles and lacerating objects.
Provided herein is a protective clothing system which includes a clothing item having a front portion and a rear portion. The front portion of the clothing item is constructed of three to fifteen sheets of protective material to protect the front portion of the body of the user from high velocity particles and lacerating objects. The rear portion of the clothing item may have no protective material or significantly less sheets of protective material compared to the front portion to help reduce the weight of the clothing item. The joints of the clothing item corresponding to the human joints are relatively free moving to provide increased mobility to the user.
There has thus been outlined, rather broadly, some of the features of the invention in order that the detailed description thereof may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the invention that will be described hereinafter and that will form the subject matter of the claims appended hereto. In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction or to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of the description and should not be regarded as limiting.
Various other objects, features and attendant advantages of the present invention will become fully appreciated as the same becomes better understood when considered in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the several views, and wherein:
A. Overview
Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views,
B. Protective Material
Each layer (sheet) of protective material used is comprised of a low weight material to reduce the overall weight of the clothing item 20, 70 which is important when the clothing item 20, 70 is being worn for extended periods of time throughout the day (e.g. 8 hours). The protective material is preferably comprised of a fiber based composite laminate that is flexible. The protective material is further preferably comprised of a ballistic resistant type of fabric material. The protective material is preferably comprised of a plastic textile fiber such as polyethylene fiber. The protective material is further preferably comprised of a woven or non-woven polyethylene fabric for use in the manufacture of protective clothing. The protective material is further preferably comprised of an ultra-high molecular weight polyethylene fiber based composite laminate used in low weight soft armor applications.
A suitable protective sheet material is manufactured by DSM Dyneema B.V. (The Netherlands) under the brand name DYNEEMA®. The applicant has found that DYNEEMA® SB21 manufactured by DSM Dyneema to be a suitable low weight sheet of protective material with protective properties useful in constructing the clothing item 20, 70. DYNEEMA® SB21 is an ultra-high molecular weight polyethylene fiber based composite laminate for low weight soft armor applications manufactured by DSM Dyneema. A roll of DYNEEMA® SB21 consists of four single layers of unidirectional sheet cross plied at ninety degrees to each other, consolidated with a rubber based matrix and covered with a protective film to form a single sheet of protective material.
When using the DYNEEMA® SB21 protective material to protect important areas of the clothing item 20, 70 (e.g. the front portion or portions of the front portion), the applicant has found that it is preferable to use between 3 to 15 sheets of the protective material layered together to provide a preferred level of protection from fast moving objects while minimizing the weight of the clothing item 20, 70. The applicant has also preferably found it preferable to use approximately 6 layers (sheets) of protective material 12 of the DYNEEMA® SB21 protective material in at least the front portion of the clothing item 20, 70 as illustrated in
The plurality of sheets of protective material are covered by an outer layer 14 positioned on an exterior of the protective clothing item 20, 70 and an inside layer 16 positioned on an interior of the protective clothing item 20, 70 as illustrated in
C. Clothing Item—Generally
The present invention may be comprised of various types of clothing items 20, 70 suitable for wearing by a user such as a worker in an industry where fast moving particles and/or lacerations are possible. The present invention may be comprised of clothing items 20, 70 that are large enough to cover conventional clothing worn by the user or clothing items 20, 70 that are to be worn without conventional clothing beneath. The clothing item 20, 70 may or may not be insulated. The clothing item 20, 70 may also be fire resistant and/or water resistant. In addition, reflective material may be attached to the exterior of the clothing item 20, 70 to increase visibility of workers in darkened conditions. For example, the present invention may be comprised of coveralls to cover the legs, torso and arms of the user. The present invention may also be comprised of a coat 20, jacket or shirt to protect the upper body of a user. The present invention may also be comprised of bib overalls, pants or chaps 70 to protect the lower body of a user. The present invention may be comprised of any combination of clothing items 20, 70 such as, but not limited to, a coat 20 and a pair of chaps 70 as illustrated in
The clothing item 20, 70 has a front portion and a rear portion. The front portion and the rear portion may be comprised of a single sheet of material or a plurality of sheets of material attached together. The rear portion may be comprised of protective material, non-protective material or with little to no material (i.e. at least partially open exposing the user without covering the rear of the user). The front portion of the clothing item 20, 70 is constructed of a plurality of sheets (a.k.a. layers, plies) of protective material layered to form the front portion to protect the user from high velocity particles such as metal and rocks. The front portion also protects the user from lacerations from objects under tension such as a cable fraying.
The front portion of the clothing item 20, 70 is capable of preventing penetration of a high-velocity particle and lacerations by cable strand lash. It is preferable that the front portion of the clothing item 20, 70 is capable of preventing penetration of a high-velocity particle up to 40 grain at 1,000 fps. It is preferable that at least a significant portion of the front portion of the clothing item 20, 70 has significantly more sheets of protective material at a preferred minimum level of protection compared to the rear portion. The preferred level of protection for the front is designed to protect at a minimum against 40 grain deformable projectiles travelling at 1,000 feet per second or less.
While it is preferable that the entire front portion of the clothing item 20, 70 be constructed to the preferred minimum level of protection, but some areas of the front portion may have increased protection (i.e. increased number of sheets of protective material) and other areas of the front portion may have reduced protection (i.e. decreased number of sheets of protective material) to help reduce the weight of the clothing item 20, 70. It is important to maintain a minimum level of flexibility throughout the entire clothing item 20, 70 similar to conventional clothing to maintain mobility and to ensure the user is able to have a full range of body movements compared to the limited movements encountered when wearing body armor.
The clothing item 20, 70 preferably includes at least two portions movably connected together at a joint that corresponds to a body joint of a user. More than one joint may exist in the clothing item 20, 70 as needed to conform to the user's body joints (e.g. knee, hip, elbow, shoulder, wrist joints). The joint in the clothing item 20, 70 connects the two portions in a loose manner preferably with one or more straps. The straps may or may not be comprised of elastic material, wherein elastic straps are preferred to allow for increased flexibility of the joint. In addition, the two portions of the clothing item 20, 70 may be connected in one or more locations in a relatively non-movable manner with a fastener such as threading or other type of fastener.
D. Clothing Item—Coat Embodiment
The torso portion of the coat 20 is comprised of a front torso portion 22 and a rear torso portion 24 as illustrated in
The rear torso portion 24 is preferably a single sheet of material which may or may not be comprised of protective material. The rear torso portion 24 may be comprised of protective material but the number of layers of protective material 12 is significantly lower than the layers of protective material 12 used for the front portion of the clothing item 20, 70 to reduce the overall weight of the clothing item 20, 70 while providing some protection from lower velocity particles.
The right sleeve 30 includes a right inner joint connected to the torso portion of the coat 20 and a middle joint as illustrated in
The right sleeve 30 is preferably comprised of a right inner portion 31 that extends outwardly from the upper portion of the torso portion of the coat 20 as illustrated in
A plurality of straps preferably are connected between the right inner portion 31 and the right middle portion 32 as illustrated in
The lower strap may be attached to the armpit area of the torso portion of the coat 20 or to a right armpit panel 50 that protects the right armpit of the user when they raise their right arm. The right armpit panel 50 is attached on the interior of the torso portion of the coat 20 near the right armpit area and is comprised of a sufficient number of layers of protective material 12 to protect the user. It is preferable that the right armpit panel 50 includes three to fifteen sheets of protective material similar to the front portion of the clothing item 20, 70 to protect the user. The right armpit panel 50 is further shaped and sized sufficiently to completely cover the lower portion of the right distal opening in the right inner portion 31 when the user raises their right arm as best illustrated in
A right outer portion 33 is movably connected to the right middle portion 32 as illustrated in
The right sleeve 30 and the left sleeve 40 preferably are comprised of mirrored structures as illustrated in
The left sleeve 40 is preferably comprised of a left inner portion 41 that extends outwardly from the upper portion of the torso portion of the coat 20 as illustrated in
A plurality of straps preferably are connected between the left inner portion 41 and the left middle portion 42 as illustrated in
The lower strap may be attached to the armpit area of the torso portion of the coat 20 or to a left armpit panel 60 that protects the left armpit of the user when they raise their left arm. The left armpit panel 60 is attached on the interior of the torso portion of the coat 20 near the left armpit area and is comprised of a sufficient number of layers of protective material 12 to protect the user. It is preferable that the left armpit panel 60 includes three to fifteen sheets of protective material similar to the front portion of the clothing item 20, 70 to protect the user. The left armpit panel 60 is further shaped and sized sufficiently to completely cover the lower portion of the left distal opening in the left inner portion 41 when the user raises their left arm as best illustrated in
A left outer portion 43 is movably connected to the left middle portion 42 as illustrated in
E. Clothing Item—Chaps Embodiment
The pair of chaps 70 each include an upper side portion 74 that extends upwardly forming an upper loop at the upper end that receives a belt 71 as illustrated in
An upper chaps portion 76 extends downwardly from the upper side portion 74 and a lower portion is movably attached to the upper chaps portion 76 as further illustrated in
F. Assembly and Usage of One Embodiment of Invention
In one embodiment, the coat 20 and chaps 70 are constructed by sewing a number of layers (sheets) of protective material (the protective material) throughout the inside of the coat 20 and the chaps 70, with a liner of hi-visibility, water resistant nylon fabric on the outside. The coat 20 features hook and loop attachments on the lapel, at the neck, and on the wrists for fast donning and removal, which is necessary and desirable on industrial job sites. The protective level of the products can be customized by adding or removing layers of protective material 12 to any parts of the coat 20. The standard protective level for the front is designed to protect against 40 grain deformable projectiles travelling at 1,000 feet per second or less. The rear of the coat 20 features a much lower protection level, for the possibility of particle ricochets. The chaps 70 may have no rear protection, although protection can be added. ANSI standard reflective striping is added to increase the visibility of the wearer.
The coat 20 is donned as a normal coat 20 would be, then fastened by connecting the hook and loop sections down the front, at the collar, and on the sleeves. The chaps 70 are donned by first connecting the belt 71 around the waist, then using elastic straps with hook and loop to secure the leggings. The coat 20 features a joint system for the arms where the lower extremity is partially detached from the upper arm. There is a small point of attachment in the inside bend of the elbow which is sewn together. The rear of the arm is slanted, extending upward to overlap the unattached points of the lower extremity. This allows the arm to flex at the elbow without encountering resistance, while still covering the entire arm. A small section of woven elastic is attached in the rear of the arm, to help retain and align the two arm sections, retracting the lower arm piece when the wearer's arm is straightened out. The chaps 70 feature a joint system where the lower leg extremity is a completely separate piece from the upper thigh area. The two pieces are connected by straps. The straps loop through rings on the lower leg piece, then attach with hook and loop to the upper leg piece. The straps and attachment point can be adjusted to change the length of the chaps 70 to fit shorter or taller wearers. The chaps 70 are secured around the legs by woven elastic with hook and loop connections. Both the coat 20 and the chaps 70 are designed to be worn for the duration of a job but can be worn for as long as necessary.
The coat 20 and chaps 70 are produced in an alternate Fire Resistant configuration by replacing the hi-visibility nylon liner with a Nomex, treated cotton, or similar fire resistant material liner. The front and rear protection levels can be adjusted. It can be appreciated that raising the protection level in the front and/or back raises the respective weight of the overall product therefore it is important to maximize the protection level against projectiles in the front location where most users experience body piercing objects and lacerations. The coat 20 is may be produced in multiple sizes, from Large to 4XL. The chaps 70 are produced in a one size fits most configuration with custom larger sizes available.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although methods and materials similar to or equivalent to those described herein can be used in the practice or testing of the present invention, suitable methods and materials are described above. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety to the extent allowed by applicable law and regulations. The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiment be considered in all respects as illustrative and not restrictive. Any headings utilized within the description are for convenience only and have no legal or limiting effect.
Number | Name | Date | Kind |
---|---|---|---|
3561394 | Pickens | Feb 1971 | A |
3577836 | Tamura | May 1971 | A |
4425667 | Harrison | Jan 1984 | A |
4602385 | Warren | Jul 1986 | A |
5073988 | Lewis, Jr. | Dec 1991 | A |
5088116 | Gould | Feb 1992 | A |
7865967 | Van Winkle | Jan 2011 | B2 |
20050059307 | Moeseke | Mar 2005 | A1 |
20080092599 | Hazan | Apr 2008 | A1 |
20080098500 | Matic | May 2008 | A1 |
20080155737 | Marchesi | Jul 2008 | A1 |
20080289087 | Sundnes | Nov 2008 | A1 |
20120079639 | Hughes | Apr 2012 | A1 |
20120174753 | Wagner | Jul 2012 | A1 |
20120240317 | Diamond | Sep 2012 | A1 |
Entry |
---|
http://www.dsm.com/products/dyneema/en—US/product-technologies/ud/sb21.html; Dyneema SB21 Webpage; Received and Printed Sep. 13, 2015. |
http://www.dsm.com/content/dam/dsm/dyneema/en—GB/Downloads/LP%20Product%20Grades/DSM—PSS—SB21.pdf; Dyneema SB21 Product Specification Sheet; Received and Printed Sep. 13, 2015. |
http://www.dsm.com/products/dyneema/en—US/product-technologies/fiber.html; Dyneema Fiber Webpage; Received and Printed Sep. 13, 2015. |
http://www.dsm.com/products/dyneema/en—US/industries/cut-resistant-gloves.html; Dyneema Cut Resistant Gloves Webpage; Received and Printed Sep. 13, 2015. |
http://www.dsm.com/products/dyneema/en—US/industries/military-law-enforcement/personal-armor.html; Dyneema Personal Armor Webpage; Received and Printed Sep. 13, 2015. |
http://www.dsm.com/products/dyneema/en—US/industries/military-law-enforcement/personal-armor/armor-vests.html; Dyneema Ballistic Vests Webpage; Received and Printed Sep. 13, 2015. |
www.dsm.com/products/dyneema/en—US/industries/military-law-enforcement/personal-armor/armor-plates-and-inserts.html; Dyneema Body armor.. Webpage; Received and Printed Sep. 13, 2015. |
http://www.dsm.com/products/dyneema/en—US/industries/military-law-enforcement/personal-armor/civilian-armor.html; Dyneema Civilian Armor Webpage; Received and Printed Sep. 13, 2015. |
Number | Date | Country | |
---|---|---|---|
20170071276 A1 | Mar 2017 | US |