Safety shield for flange type coupling
OwnerRoy A. Matthiesseninventor
Life of this patent
Estimating the term…
Abstract
An improved shield for a pipe joint is described that includes an elongated body to be wrapped around a pipe coupling, formed from a strip of pliable fabric. One or more fabric liner strips is disposed within the body, and means are provided for separably connecting its ends together. The liner strips are loosely slidable relative to the body during wrapping of the assembly of the body and liner strips around the pipe coupling. One or more display means for monitoring the coupling integrity are held against the fabric body in assembled relation by a clear envelope means. The display means is formed from a sheet of chemically sensitive material having an indicating means thereon which, upon contact with leakage from the pipe coupling, provides a visual indication of such leakage.
Claims12
An improved shield having indicating means for a flanged pipe joint carrying a pressurized fluid, comprising:
- an elongated porous pliable fabric body having an underside and an overside of a length and a width to be wrapped around a pipe coupling with its ends overlapped and with its underside adjacent the pipe coupling and its overside remote therefrom;
- connection means for separably connecting said ends together;
- a pliable porous liner reinforcing strip maintained at least at one end disposed between said underside and said overside confined wholly within the boundaries of said body and extending centrally longitudinally of said body;
- retaining means for separably holding said liner strip in said body against displacement relative thereto;
- at least one display means for monitoring pipe coupling integrity, said display means including chemically sensitive material having the indicating means thereon to change appearance in the presence of given substances;
- and
- clear envelope means having peripheral edges secured on said overside of said shield to surround said display means to hold said display means and fabric body in assembled relation relative to the pipe flange, so that said display means will provide a visual indication of leakage from the pipe joint that has seeped through the underside, pliable porous liner and overside and be protected by said clear envelope means from outside atmospheric or environmental conditions.
An improved shield for a pipe joint, comprising:
- an elongated porous pliable fabric body having an underside and an overside and of a length and width to be wrapped around a pipe coupling with its ends overlapped and with its underside adjacent the pipe coupling and its overside remote therefrom;
- connection means for separably connecting said ends together;
- a pliable porous liner reinforcing strip disposed between said underside and said overside confined wholly within the boundaries of said body and extending centrally longitudinally of said body;
- retaining means for separably holding said liner strip in said body against displacement relative thereto;
- at least one display means for monitoring pipe coupling integrity, said display means including chemically sensitive material having indicating means thereon adapted to change appearance in the presence of given substances;
- and
- clear envelope means disposed on said overside of said shield to surround said display means and hold said display means and fabric body in assembled relation relative to the pipe flange so that said display means will provide a visual indication of leakage from the pipe joint and be protected by said clear envelope means from outside atmospheric or environmental conditions;
- and
- said elongated porous pliable fabric body is formed from one piece of material folded to form said underside and said overside;
- and
- said connecting means for separably connecting said ends together comprise:
- hook and pile type fastening means disposed on opposite sides of said shield to engage upon wrapping said shield about a pipe joint;
- and
- drawstring-type lines to be pulled and knotted, and thereby draw said shield about the pipe joint to form a receptacle about said pipe joint;
- said retaining means for separably holding said liner strip in said body against displacement relative thereto comprise:
- stitching means extending between said underside and overside and passing through said liner strip at one end thereof;
- and
- lines of stitching between said underside and overside extending longitudinally along said body so that said liner strip is free to slide and move within said body to adjust to the circumfrence of the pipe flange outer surface without restrictions;
- and
- said indicating means is a colorant material responsive to transported pipe lines fluid.
Dependencies are inferred from the claim text.