Torch tubing clamping apparatus

• US 4,345,786 A
• Filed: 04/11/1979
• Issued: 08/24/1982
• Est. Priority Date: 04/11/1979
• Status: Expired due to Term

• Current Assignee: Victor Equipment Co. (Enovis Corp.)
• Original Assignee: Victor Equipment Co. (Enovis Corp.)
• Inventors: Egert, Allen C.
• Primary Examiner(s): Arola, Dave W.
• Application Number:
  US06/029,370
• Time in Patent Office: 1,231 Days
• Field of Search: 285/249, 285/137 R, 285/255, 285/322, 285/323, 285/243, 285/131, 285/132, 285/93, 285/256, 285/242, 285/DIG. 7, 16/2, 239/419.3, 239/424.5
• US Class Current: 285/124.4
• CPC Class Codes: F16L 39/02 for hoses

Abstract

What is disclosed is an improvement in a tubing clamping apparatus in which a hose carrying a fluid is to be connected in fluid tight relationship with an appliance; such as, a welding torch, pressure regulator or the like; the improvement being characterized by a hose barb sealingly connected at one end with the appliance and having an outwardly extending free end having an enlarged inverted frusto-conical section thereon for sealingly receiving the hose inserted thereover, a hose inserted over the hose barb, a thermoplastic clamping means disposed about the hose and encompassing the hose between the clamping means and the hose barb to hold the hose sealingly and frictionally in place, and a retainer means for retaining the clamping means in clamping relationship with the hose and the hose barb; the retaining means being forced toward the appliance so as to apply a radially inwardly biasing force on the clamping means.

Claims

1. In tubing clamping apparatus in which a plurality of hoses carrying respective fluids are to be connected in fluid-tight relationship with a torch having a body that has two respective fuel and oxygen passageways penetrating therethrough, the improvement comprising:

two respective said hose barbs sealingly connected with said body in fluid communication with said respective passageways;

said hose barbs being sealingly connected at one end with said torch and having respectively outwardly extending free ends having respective enlarged inverted frusto-conical sections;

each said inverted frusto-conical section having a maximum diameter greater than said hose barbs for grippingly receiving the respective hose and having its smaller end extending away from said torch to facilitate insertion of said hose thereover;

two respective said hoses connected respectively with respective said hose barbs by being inserted thereover;

thermoplastic clamping means disposed about said hoses and encompassing said hoses between said clamping means and said hose barbs to hold respective hoses sealingly and frictionally in place;

said thermoplastic clamping means comprising a thermoplastic clamp having two apertures penetrating longitudinally therethrough and having a split skirt with radially interiorly protruding shoulders for clamping said hoses;

said hoses penetrating longitudinally through respective said apertures in said clamping means;

said split skirt being moved radially interiorly to clamp said hoses with its said shoulders against respective said hose barbs;

said shoulders comprising respective interiorly protruding segments of a ring in each aperture;

said skirt being slit in two places about each hose and longitudinally along each aperture;

said skirt being adapted to close said slit sufficiently to clamp said hose with said shoulders;

a groove 61 being disposed adjacent the base of said split skirt to facilitate closure for clamping; and

retainer means for retaining said clamping means in clamping relationships with said hoses and said hose barbs;

said retainer means comprising a handle that screws onto mating threads onto said body of said torch and compressingly engages said clamping means, forcing said clamping means into clamping engagement with said hoses on respective said hose barbs.

2. In tubing clamping apparatus in which a plurality of hoses carrying respective fluids are to be connected in fluid-tight relationship with a torch having a body that has two respective fuel and oxygen passageways penetrating therethrough, and at the other end, two respective sealing ends that are connectable with respective sealing seats in a pressure regulator by way of respective threaded nuts, the improvement comprising:

two respective said hose barbs sealingly connected with said body in fluid communication with said respective passageways;

said hose barbs being sealingly connected at one end with said torch and having respective outwardly extending free ends having respective enlarged inverted frusto-conical sections;

each said inverted frusto-conical section having a maximum diameter greater than said hose barbs for grippingly receiving the respective hose and having its smaller end extending away from said torch to facilitate insertion of said hose thereover;

two respective said hoses connected respectively with respective said hose barbs by being inserted thereover;

thermoplastic clamping means disposed about said hoses and encompassing said hoses between said clamping means and said hose barbs to hold respective hoses sealingly and frictionally in place;

said thermoplastic clamping means comprising a thermoplastic clamp having two apertures penetrating longitudinally therethrough and having a split skirt with radially interiorly protruding shoulders for clamping said hoses;

said hoses penetrating longitudinally through respective said apertures in said clamping means;

said split skirt being moved radially interiorly to clamp said hoses with its said shoulders against respective said hose barbs;

retainer means for retaining said clamping means in clamping relationships with said hoses and said hose barbs;

said retainer means comprising a handle that screws onto mating threads onto said body of said torch and compressingly engages said clamping means, forcing said clamping means into clamping engagement with said hoses on respective said hose barbs; and

at said other end,

a plurality of hose barbs sealingly connected with respective sealing ends that are connectable with said respective sealing seats in said pressure regulator with respective threaded nuts;

said hose barbs having outwardly extending free ends having respective enlarged inverted frusto-conical sections;

each said inverted frusto-conical section having a maximum diameter greater than said hose barbs for grippingly receiving the respective hose and having its smaller end extending away from said sealing end to facilitate insertion of said respective hose thereover;

each said hose having an end that is inserted over each said hose barbs;

thermoplastic clamping means disposed about respective said hoses and encompassing said hoses between said clamping means and said hose barbs to hold respective said hoses sealingly and frictionally in place;

said thermoplastic clamping means comprising a plurality of smooth, unthreaded clamp collets;

each said clamp collet having a slit skirt with interiorly protruding shoulders for clamping said hose;

each said slit skirt being moved interiorly radially to clamp said hose against said hose barb in operation;

retainer means for retaining said clamping means in clamping relationship with said hoses and said hose barbs;

said retainer means comprising a smooth, unthreaded clamp sleeve that is forced longitudinally of and passed over said clamp collet to effect the desired clamping retention of said hose sealingly on said hose barb;

said threaded nuts being disposed over respective said hose barbs and clamping said sealing ends into sealing engagement with the sealing seats in operation.