Apparatus for injection spraying of containers

Claim 1

Apparatus for injection spraying of a container with a sealing material, said container having a bottom and a plurality of vertical sides as the container travels along a travel path having a beginning and an end comprising means for guiding and supporting said container as said container travels along said travel path, said guiding and supporting means having a plurality of arcuate members disposed in a plane parallel to the travel path of said container, a first one of said plurality of arcuate members having a radius of curvature smaller than the radius of curvature of the travel path of said container and a second one of said plurality of arcuate members having a radius of curvature which is greater than the radius of curvature of said travel path, said guiding and supporting means having a receiving end at the beginning of said travel path and a discharge end at the end of said travel path, means for injection spraying said bottom of said container, a plurality of low-pressure air jets disposed in a plane parallel to the plane of said means for guiding and supporting said container, said air jets being arranged to emit a stream of air having a force component parallel to said travel path of said container, an arcuate high-pressure air tube having a radius of curvature greater than the radius of curvature of said second one of said plurality of arcuate members, coaxially oriented with respect to said first plurality of arcuate members, said arcuate high-pressure air tube being disposed on the outer periphery of said travel path, said arcuate high-pressure air tube having a beginning at the beginning of said travel path and an end in the vicinity of said means for injection spraying, A plurality of nozzles having central longitudinal apertures arranged for communicating with said arcuate high-pressure air tube, said nozzles being capable of emitting a stream of air having a force component parallel to said travel path, said nozzles facing inwardly and being disposed in a plane parallel to said plane of said means for guiding and supporting said container, an arcuate cooling fountain having a beginning and an end, said beginning of said arcuate cooling fountain being disposed in the vicinity of said receiving end of said means for guiding said container and said end of said cooling fountain being disposed 80* to 90* downstream of the beginning of said arcuate cooling fountain, said means for injection spraying being situated in the vicinity of the end of said arcuate cooling fountain, said means for injection spraying being capable of vertical motion with respect to said bottom of said container to descend toward and withdraw from said bottom of said container, an annular member having a vertical central axis, said annular member being coaxial with the centers of said plurality of arcuate members, said annular member being capable of rotation about its center, a plurality of pusher bodies disposed intermediate the inner radius of curvature of said annular member and the outer radius of curvature of said annular member and being affixed to said annular member disposed approximately 120* from one another, and means for heating said bottom of said container as said container travels along said travel path comprising a gas jet assembly including a pilot light assembly and a full flow gas assembly, said pilot light assembly being capable of maintaining a sufficient flow of gas through said gas jet assembly to maintain a pilot flame and said full flow assembly being capable of supplying gas to said heater in sufficient quantity to remelt the sealing material deposited on said bottom of said container as said container travels along said travel path.

Claim 4

An apparatus for injection spraying of a container with a sealing material, said container having a bottom and a plurality of vertical sides as said container travels along a travel path having a beginning and an end comprising a slide guide for guiding and supporting said container as said container travels along said travel path, said slide guide having a plurality of upper arcuate slide guide members, and a plurality of lower arcuate slide guide members, said upper and lower slide guide members having coterminous receiving ends at the beginning of said travel path and coterminous discharge ends at the end of said travel path, an air jet assembly for propelling said container from said receiving end along said travel path by imparting a force to said container, said force having a component which is parallel to said travel path of said container, a cooling fountain disposed intermediate said plurality of lower arcuate slide guide members for cooling said bottom of said container as said container is propelled along said travel path, an injection spray gun vertically situated with respect to said travel path of said container, said injection spray gun having an upper end and lower end, an injection spray head fixed to said lower end of said injection spray gun, said injection spray head having an upper face and a right angle truncated octipyramidal lower face, and a plurality of nozzles disposed on alternate faces of said right angle truncated octipyramidal lower face of said injection spray head, each nozzle being capable of emitting a spray of sealing material and each comprising a cylindrical receiving end having a central longitudinal axis and a bulbous emitting end, said bulbous emitting end having a central aperture therein, said aPerture in said bulbous emitting end being substantially coaxial with said central longitudinal axis of said cylindrical receiving end, a peripheral groove disposed around the periphery of said receiving end in a plane transverse to said central longitudinal axis of said cylindrical receiving end, and a duct communicating between said groove in said cylindrical receiving end and said aperture in said bulbous emitting end.

Claim 5

An apparatus for injection spraying of a container with a sealing material, said container having a bottom and a plurality of vertical sides as said container travels along a travel path having a beginning and an end comprising a slide guide for guiding and supporting said container as said container travels along said travel path, said slide guide having a plurality of upper arcuate slide guide members, and a plurality of lower arcuate slide guide members, said upper and lower slide guide members having coterminous receiving ends at the beginning of said travel path and coterminous discharge ends at the end of said travel path, an air jet assembly for propelling said container from said receiving end along said travel path by imparting a force to said container, said force having a component which is parallel to said travel path of said container, a cooling fountain disposed intermediate said plurality of lower arcuate slide guide members for cooling said bottom of said container as said container is propelled along said travel path, an injection spray gun vertically situated with respect to said travel path of said container, said injection spray gun having an upper end and lower end, an injection spray head fixed to said lower end of said injection spray gun, said injection spray head having an upper face and a right angle truncated octipyramidal lower face, and a plurality of nozzles disposed on alternate faces of said right angle truncated octipyramidal lower face of said injection spray head, each nozzle being capable of emitting a spray of sealing material and each comprising a cylindrical receiving end having a central longitudinal axis and a bulbous emitting end, said bulbous emitting end having a central aperture therein, said aPerture in said bulbous emitting end being substantially coaxial with said central longitudinal axis of said cylindrical receiving end, a peripheral groove disposed around the periphery of said receiving end in a plane transverse to said central longitudinal axis of said cylindrical receiving end, and a duct communicating between said groove in said cylindrical receiving end and said aperture in said bulbous emitting end.

Claim 7

An apparatus for injection spraying of a container with a sealing material, said container having a bottom and a plurality of vertical sides as said container travels along a travel path having a beginning and an end comprising a slide guide for guiding and supporting said container as said container travels along said travel path, said slide guide having a plurality of upper arcuate slide guide members, and a plurality of lower arcuate slide guide members, said upper and lower slide guide members having coterminous receiving ends at the beginning of said travel path and coterminous discharge ends at the end of said travel path, an air jet assembly for propelling said container from said receiving end along said travel path by imparting a force to said container, said force having a component which is parallel to said travel path of said container, a cooling fountain disposed intermediate said plurality of lower arcuate slide guide members for cooling said bottom of said container is propelled along said travel path, an injection spray gun vertically situated with respect to said travel path of said container, said injection spray gun having an upper end and lower end, an injection spray head fixed to said lower end of said injection spray gun, said injection spray head having an upper face and a right angle truncated octipyramidal lower face, and a plurality of nozzles disposed on alternate faces of said right angle truncated octipyramidal lower face of said injection spray head, each nozzle being capable of emitting a spray of sealing material, said injection spray gun being comprised of a first hollow tubular member having an upper end and a lower end, a second hollow tubular member having a diameter greater than the diameter of said first hollow tubular member and having an upper end and a lower end, said first hollow tubular member being coaxial with and disposed within said second hollow tubular member, a sealing material housing having a plurality of apertures therein, a first one of said apertures of said sealing material housing communicating with a cavity formed by the outer surface of said first hollow tubular member and the inner surface of said second hollow tubular member, a second one of said apertures in said sealing material housing communicating with the interior of said first hollow tubular member, a means for biasing said lower end of said inner hollow tubular member into contact with said upper surface of said injection spray head, an aperture extending from said upper face of said injection spray head to said lower face of said injection spray head, said aperture being substantially coaxial with said first hollow tubular member and said second hollow tubular member, means for sealing said aperture in said injection spray head, said means being affixed to said lower end of said inner hollow tubular member and being seated on such aperture, and means overcoming said biasing means to raise the lower said inner hollow tubular member to unseal and seal said aperture in said injection spray head.

Claim 8

An apparatus for injection spraying of a container with a sealing material, said container having a bottom and a plurality of vertical sides as said container travels along a travel path having a beginning and an end comprising a slide guide for guiding and supporting said container as said container travels along said travel path, said slide guide having a plurality of upper arcuate slide guide members, and a plurality of lower arcuate slide guide members, said upper and lower slide guide members having coterminous receiving ends at the beginning of said travel path and coterminous discharge ends at the end of said travel path, an air jet assembly for propelling said container from said receiving end along said travel path by imparting a force to said container, said force having a component which is parallel to said travel path of said container, a cooling fountain disposed intermediate said plurality of lower arcuate slide guide members for cooling said bottom of said container is propelled along said travel path, an injection spray gun vertically situated with respect to said travel path of said container, said injection spray gun having an upper end and lower end, an injection spray head fixed to said lower end of said injection spray gun, said injection spray head having an upper face and a right angle truncated octipyramidal lower face, and a plurality of nozzles disposed on alternate faces of said right angle truncated octipyramidal lower face of said injection spray head, each nozzle being capable of emitting a spray of sealing material, said injection spray gun being comprised of a first hollow tubular member having an upper end and a lower end, a second hollow tubular member having a diameter greater than the diameter of said first hollow tubular member and having an upper end and a lower end, said first hollow tubular member being coaxial with and disposed within said second hollow tubular member, a sealing material housing having a plurality of apertures therein, a first one of said apertures of said sealing material housing communicating with a cavity formed by the outer surface of said first hollow tubular member and the inner surface of said second hollow tubular member, a second one of said apertures in said sealing material housing communicating with the interior of said first hollow tubular member, a means for biasing said lower end of said inner hollow tubular member into contact with said upper surface of said injection spray head, an aperture extending from said upper face of said injection spray head to said lower face of said injection spray head, said aperture being substantially coaxial with said first hollow tubular member and said second hollow tubular member, means for sealing said aperture in said injection spray head, said means being affixed to said lower end of said inner hollow tubular member and being seated on such aperture, and means overcoming said biasing means to raise the lower said inner hollow tubular member to unseal and seal said aperture in said injection spray head.

Claim 9

An apparatus for injection spraying of a container with a sealing material, said Container having a bottom and a plurality of vertical sides as said container travels along a travel path having a beginning and an end comprising a slide guide for guiding and supporting said container as said container travels along said travel path, said slide guide having a plurality of upper arcuate slide guide members, and a plurality of lower arcuate slide guide members, said upper and lower slide guide members having coterminous receiving ends at the beginning of said travel path and coterminous discharge ends at the end of said travel path, an air jet assembly for propelling said container from said receiving end along said travel path by imparting a force to said container, said force having a component which is parallel to said travel path of said container, a cooling fountain disposed intermediate said plurality of lower arcuate slide guide members for cooling said bottom of said container as said container is propelled along said travel path, an injection spray gun vertically situated with respect to said travel path of said container, said injection spray gun having an upper end and lower end, an injection spray head fixed to said lower end of said injection spray gun, said injection spray head having an upper face and a right angle truncated octipyramidal lower face, a plurality of nozzles disposed on alternate faces of said right angle truncated octipyramidal lower face of said injection spray head, each nozzle being capable of emitting a spray of sealing material and an injection spray gun mounting assembly comprising a hollow cylinder having a pair of opposed parallel faces, disposed one at either end of said hollow cylinder, a plate disposed within said cylinder in a plane substantially transverse to the central longitudinal axis of said hollow cylinder and being capable of motion therein, said plate having an outer peripheral contour substantially similar to the inner periphery of said hollow cylinder, a rod coaxial with the central longitudinal axis of said cylinder and extending through said cylinder and said plate, said rod being affixed rigidly to said plate and affixed slidably to said cylinder at each of said pair of parallel faces, means for introducing air under pressure into the cavity formed by said hollow cylinder, said plate and one face of said cylinder, means for introducing air under pressure into the cavity formed by said hollow cylinder, said plate and said other face of said hollow cylinder, and means for affixing said injector spray gun mounting apparatus to said injector spray gun.

Claim 10

An apparatus for injection spraying of a container with a sealing material, said Container having a bottom and a plurality of vertical sides as said container travels along a travel path having a beginning and an end comprising a slide guide for guiding and supporting said container as said container travels along said travel path, said slide guide having a plurality of upper arcuate slide guide members, and a plurality of lower arcuate slide guide members, said upper and lower slide guide members having coterminous receiving ends at the beginning of said travel path and coterminous discharge ends at the end of said travel path, an air jet assembly for propelling said container from said receiving end along said travel path by imparting a force to said container, said force having a component which is parallel to said travel path of said container, a cooling fountain disposed intermediate said plurality of lower arcuate slide guide members for cooling said bottom of said container as said container is propelled along said travel path, an injection spray gun vertically situated with respect to said travel path of said container, said injection spray gun having an upper end and lower end, an injection spray head fixed to said lower end of said injection spray gun, said injection spray head having an upper face and a right angle truncated octipyramidal lower face, a plurality of nozzles disposed on alternate faces of said right angle truncated octipyramidal lower face of said injection spray head, each nozzle being capable of emitting a spray of sealing material and an injection spray gun mounting assembly comprising a hollow cylinder having a pair of opposed parallel faces, disposed one at either end of said hollow cylinder, a plate disposed within said cylinder in a plane substantially transverse to the central longitudinal axis of said hollow cylinder and being capable of motion therein, said plate having an outer peripheral contour substantially similar to the inner periphery of said hollow cylinder, a rod coaxial with the central longitudinal axis of said cylinder and extending through said cylinder and said plate, said rod being affixed rigidly to said plate and affixed slidably to said cylinder at each of said pair of parallel faces, means for introducing air under pressure into the cavity formed by said hollow cylinder, said plate and one face of said cylinder, means for introducing air under pressure into the cavity formed by said hollow cylinder, said plate and said other face of said hollow cylinder, and means for affixing said injector spray gun mounting apparatus to said injector spray gun.