The present patent application relates to wearable, portable radios having remote speaker microphones in need of flame and heat resistant protection, and, more particularly, to a flame and heat resistant, releasably connectable wrap that seats against and around the portable radio, the remote speaker microphone and the cord therebetween.
Firefighters and other first responders, such as Emergency Medical Services (“EMS”) personnel and police officers, frequently carry portable radio equipment to facilitate real-time communication with other members of a response team at the scene of an emergency situation. This radio equipment includes the radio unit itself, as well as a remote speaker microphone (“RSM”) attached to the radio unit via a cord, which is positioned proximate to the lapel of the wearer or across the back of the wearer. Firefighters are often exposed to extreme temperatures. Accordingly, the radio, RSM, and cord can benefit from protections against melting/heat damage, as well as protections against entanglement with objects in the environment.
Accordingly, those skilled in the art continue to seek improved fire resistance (heat and flame resistance) for the radio equipment without detracting from the functionality of the items.
In all aspects, wraps providing hear and flame resistant properties to a portable radio, a remote speaker microphone, and a cord therebetween are disclosed that have an elongate body having a head and a tail, opposing first and second major surfaces that each have first and second elongate edges, and first and second elongate sides. The elongate body is made of flame and heat resistant fabric and has first fasteners positioned as a releasably mateable pair when the first and second elongate sides meet or overlap in a wrapped positioned. The head defines an opening therethrough positioned for alignment with a voice amplifier of a remote speaker microphone in the wrapped position, and the tail is wider than a width of the elongate body at a junction with the head. More specifically, the elongate body has a first width proximate the head and a second width proximate the tail, and the head has a third width, which is greater than the first width.
In all embodiments, the elongate body may taper divergently from the first width to the second with along the length of the elongate body and the releasably mateable pair of first fasteners is selected from hook-and-loop material, snaps, or a zipper. In all embodiments, a reflective strips may be present on the elongate body and/or the head, typically sewn thereto. And, the tail has notches in the first and second elongate sides at a position and shaped to fit a connector of a radio or a connector of a radio attachment member when in a wrapped position.
In one embodiment, the releasably mateable pair of first fasteners comprises hook-and-loop material on opposing first and second major surfaces of the elongate body proximate the first edge of the first major surface and the second edge of the second major surface.
In all aspects, the heat and flame resistant fabric may include a thermal barrier layer and/or a moisture barrier layer, with the flame and heat resistant fabric being the outermost layer of the wrap. The flame and heat resistant fabric resists igniting, burning, melting, dripping and/or separation at a temperature of 500° F. for at least five minutes.
In any of the embodiments disclosed herein, the wrap may include an elastic member releasably or fixedly attached to the head at a position that places the elastic member at the back of the remote speaker microphone in the wrapped position. A free end of the elastic member has a first fastener of a second pair of releasably attachable fasteners, and a second fastener is positioned between the opening of the head and the elongate body or positioned on the elongate body proximate the junction to the head. The second fastener is mateable to the first fastener of the second pair of releasably attachable fasteners. Additionally, a flap can be connected to the elastic member to fold over a top of a remote speaker microphone in the wrapped position.
In another aspect, a firefighter turnout coat having a body portion defining sleeves, a back section, a two front sections releasably mateable to one another, and a neck section, and a wrap is sewn as a flap to a first of the two front sections proximate the neck section, thereby defining a flap seam. The flap provides heat and flame resistant properties to a remote speaker microphone and to a cord connected to the remote speaker microphone. The elongate body of the flap has a head and a tail and opposing first and second major surfaces. The head defines an opening therethrough positioned for alignment with a voice amplifier of the remote speaker microphone in a wrapped position. The elongate body has a first fastener positioned on the first major surface or a second major surface of the head at an edge opposite the flap seam and a second fastener positioned on the second major surface of the elongate body at an edge opposite the flap seam. A third fastener which is mateable to the first and the second fasteners is fixedly attached to the first front section and positioned to mate with the first and second fasteners of the wrap.
The flap sewn to the turnout coat has many of the features mentioned above. The elongate body has a first width at a junction with the head and the head has a width that is wider than the first width. The first and second fasteners and the third fastener comprises hook-and-loop material or snaps.
In all embodiment, the flap may have a reflective strip(s) on the elongate body and/or the head. An elastic member may be releasably or fixedly attached to the head of the wrap at a position that places the elastic member at the back of the remote speaker microphone in the wrapped position. A free end of the elastic member has a fourth fastener releasably attachable to a fifth fastener positioned between the opening of the head and the elongate body or positioned on the elongate body proximate the junction to the head.
The third fastener has a first end fixedly attached to the first front section underneath the wrap juxtaposed to the flap seam and a second end fixedly attached to the first front section underneath the wrap at a position aligned with the second fastener of the wrap and the body is positionally curved therebetween.
The following detailed description will illustrate the general principles of the invention, examples of which are additionally illustrated in the accompanying drawings. In the drawings, like reference numbers indicate identical or functionally similar elements.
Referring to
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Referring now to the two embodiment of
The first width W1 is in a range of about 3 inches to about 8 inches. The second width W2 is in a range of about 3 inches to about 14 inches, more preferably about 5 inches to 12 inches. The third width W3 is in a range of about 3 inches to about 14 inches, more preferably 4 inches to 10 inches. “About” as used herein is for any value means within plus or minus 10% of the stated value, or more preferably plus or minus 5% of the stated value.
The wrap 100 has opposing first major surface 108 and second major surface 110 spaced apart from one another by first and second elongate sides 116, 118. Each of the first and second major surfaces 108, 110 have a first elongate edge 112 and a second elongate edge 114. First fasteners 120 are positioned as a releasably mateable pair when the first and second elongate sides 116, 118 meet, for example as halves of a zipper 140 as shown in
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As shown in
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Still referring to
With reference to
Beneath the outer shell 160, a liner 161 may be present. The liner 161 includes a moisture barrier 162 and/or a thermal liner 164. The moisture barrier may between the outer shell 160 and the thermal liner 164, or the positions of the moisture barrier 28 and thermal liner 30 may be reversed such that the thermal liner 30 is located between the outer shell 160 and the moisture barrier 162. The moisture barrier 162 and thermal liner 164 may be coextensive with the outer shell 160 or spaced slightly inwardly from the outer edges of the outer shell 160 (e.g., spaced slightly inwardly from the edges 112 and 114) to provide moisture and thermal protection throughout the wrap 100. The moisture barrier 162 may include a semi-permeable membrane layer and a substrate as taught in U.S. Pat. No. 7,913,322. The semi-permeable membrane layer may be made of or include expanded polytetrafluoroethylene (“PTFE”) such as GORE-TEX or CROSSTECH materials (both of which are trademarks of W. L. Gore & Associates, Inc. of Newark, Del.), polyurethane-based materials, neoprene-based materials, cross-linked polymers, polyamide, or other materials. The semi-permeable membrane layer may have microscopic openings that permit moisture vapor (such as water vapor) to pass therethrough, but block liquids (such as water) from passing therethrough. The semi-permeable membrane layer may be made of a microporous material that is either hydrophilic, hydrophobic, or somewhere in between and may be monolithic and allow moisture vapor transmission therethrough by molecular diffusion.
The semi-permeable membrane layer may be bonded or adhered to the substrate, which is preferably a flame and heat resistant material. The substrate may be or include aramid fibers similar to the aramid fibers of the outer shell 160, but may be thinner and lighter in weight. The substrate may be woven, non-woven, spunlace or other materials.
The thermal liner 164 may be made of any suitable material that provides sufficient thermal insulation. In one embodiment, the thermal liner 164 includes a relatively thick (i.e., between about 1/16″- 3/16″) batting, felt, or needled non-woven material which can include aramid fiber batting (such as NOMEX batting), aramid needle-punch material, an aramid non-woven material, an aramid blend needle-punch material, an aramid blend batting material, an aramid blend non-woven material, or foam (either open cell or closed cell) materials. The batting, felt, or needled non-woven material is often a quilted material. In one embodiment, the thermal liner 30 may have a thermal protection performance (“TPP”) of at least about twenty, or of at least about thirty-five.
Each of these materials, and the components disclosed together as a whole to define the wrap 100, meet the National Fire Protection Association (“N.F.P.A.”) 1971 standards for protective firefighting garments (“Protective Clothing for Structural Firefighting”), which are entirely incorporated by reference herein. The NFPA standards specify various minimum requirements for heat and flame resistance and tear strength. For example, in order to meet the NFPA standards, the components must be able to resist igniting, burning, melting, dripping and/or separation at a temperature of 500° F. for at least five minutes.
In all aspects, the wrap 100 is constructed of a length of flexible, heat and flame resistant material that extends from the base of a radio within the radio attachment member 16 to the top of the RSM in small, medium, large, and extra-large sizes. In one embodiment, the length of the wrap 100 is at least about 10 inches long to a max of about 48 inches long. The length of the wrap may be adjustable.
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The wrap 100′ has an elongate body 102′ of flame and heat resistant fabric having a head 104′ and a tail 106′ and opposing first and second major surfaces 108′, 110′. The elongate body 102′ has a first width W1 at a junction with the head 104′ and the head has a width W2 that is wider than the first width W1. The head 104′ defines an opening 124′ therethrough positioned for alignment with a voice amplifier of the remote speaker microphone in a wrapped position. The elongate body 102′ has a first fastener 150 positioned on the first major surface 108′ of the head 104′ at an edge opposite the flap seam 121 and a second fastener 151 positioned on the second major surface 110′ of the elongate body 102′ at an edge opposite the flap seam 121. A third fastener 152 which is mateable to the first and the second fasteners 150, 151 is fixedly attached to the first front section 208a and positioned to mate with the first and second fasteners 150,151 of the wrap 100′. The first, second, and third fasteners 150, 151, 152 are preferably heat and flame resistant hook-and-loop fasteners, but is not limited thereto. In another embodiment, the first, second, and third fasteners may be snaps.
Referring now to
Referring now to
As shown in
Still referring to
Alternately, the head 104′, as discussed above with respect to
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Further, in the embodiment of
With respect to all the embodiments of
Each of the materials and components disclosed herein that together as a whole define the wrap 100′, including the same material discussed above for wrap 100, meet the National Fire Protection Association (“N.F.P.A.”) 1971 standards for protective firefighting garments (“Protective Clothing for Structural Firefighting”), which are entirely incorporated by reference herein. The NFPA standards specify various minimum requirements for heat and flame resistance and tear strength. For example, in order to meet the NFPA standards, the components must be able to resist igniting, burning, melting, dripping and/or separation at a temperature of 500° F. for at least five minutes.
It should be noted that the embodiments are not limited in their application or use to the details of construction and arrangement of parts and steps illustrated in the drawings and description. Features of the illustrative embodiments, constructions, and variants may be implemented or incorporated in other embodiments, constructions, variants, and modifications, and may be practiced or carried out in various ways. Furthermore, unless otherwise indicated, the terms and expressions employed herein have been chosen for the purpose of describing the illustrative embodiments of the present invention for the convenience of the reader and are not for the purpose of limiting the invention.
Having described the invention in detail and by reference to preferred embodiments thereof, it will be apparent that modifications and variations are possible without departing from the scope of the invention which is defined in the appended claims.
This application is a continuation of U.S. application Ser. No. 16/678,295, filed Nov. 8, 2019, which claims the benefit of U.S. Provisional Application No. 62/757,918, filed Nov. 9, 2018.
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Number | Date | Country | |
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20220044842 A1 | Feb 2022 | US |
Number | Date | Country | |
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62757918 | Nov 2018 | US |
Number | Date | Country | |
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Parent | 16678295 | Nov 2019 | US |
Child | 17506820 | US |