Tube to block mounting assembly

Claim 2

A tube mounting assembly comprising a body member having a cylindrical stepped bore extending from one surface thereof and defining a socket, said body member having a slot opening extending transversely from one side thereof and intersecting said stepped bore at right angle thereto closely adjacent to said one surface, a tubular member having a plug portion at one end thereof which is slidably received in said socket and in sealing relation to said socket when fully inserted therein, said plug portion including an annular bead on the exterior of said tubular member providing a radial shoulder and, a retainer clip means having a body portion with a longitudinal extending through slot opening therein defined by a first semi-circular rim edge at one end of a diameter to slidably receive said annular bead, a second semi-circular rim edge at the opposite end and by interconnecting spaced apart rim edges, said rim edges providing a first shoulder means and a second shoulder means in parallel spaced apart relation to each other and longitudinally spaced apart on said body portion, said retainer clip means being slidably received in said slot, whereby said retainer clip means is movable from a position in which said first shoulder means engages said shoulder of said bead when said plug portion is fully inserted into said socket to retain said plug portion fully engaged and sealed, a second position at which said second shoulder means engages said shoulder to retain said plug portion within said socket in a position out of sealing engagement therewith and a third position at which said first semi-circular rim edge is concentric with said stepped bore to permit removal of said plug portion from said body.

Claim 3

A tube mounting assembly comprising a tube having a plug portion at one end thereof defined by an external annular bead on said tube and a cylindrical pilot portion extending from one side of said bead to a free end of said tube, a seal ring encircling said pilot portion adjacent to said bead, a body member having a stepped bore extending from one surface thereof and defining a socket to slidably receive said plug portion in sealing relation therewith when said plug portion is fully inserted into said socket, said stepped bore including a first counterbore to provide a cylindrical internal wall extending from said one surface and terminating at an inward extending radial shoulder, said internal wall being of a diameter to receive said bead, said body member having a slot opening extending transversely from one side of said body member to intersect said internal wall at right angle thereto a predetermined axial distance from said radial shoulder and a retainer clip means providing a first detent means and a second detent means in axial spaced apart relation to each other relative to said stepped bore and an opening of a diameter greater than the outside diameter of said bead, said retainer clip means being slidably received in said slot for movement between positions such that in a first position said first detent means engages said bead when said plug portion is fully inserted into said socket to retain said plug portion fully engaged and sealed, in a second position said second detent means is positioned to engage said bead to retain said plug portion within said socket out of sealing engagement therewith and in a third position in which said opening is concentric with said stepped bore for passage of said bead therethrough.

Claim 4

A tube mounting assembly comprising a tube having a plug portion at one end thereof defined by an external annular bead on said tube and a cylindrical pilot portion extending from one side of said bead to a free end of said tube, a seal ring encircling said pilot portion adjacent to said bead, a body member having a stepped bore extending from one surface thereof and defining a socket to slidably receive said plug portion in sealing relation therewith when said plug portion is fully inserted into said socket, said stepped bore including a first counterbore to provide a cylindrical internal wall extending from said one surface and terminating at an inward extending radial shoulder, said internal wall being of a diameter to receive said bead, said body member having a slot opening extending transversely from one side of said body member to intersect said internal wall at right angle thereto a predetermined axial distance from said radial shoulder and a retainer clip means providing a first detent means and a second detent means in axial spaced apart relation to each other relative to said stepped bore and an opening of a diameter greater than the outside diameter of said bead, said retainer clip means being slidably received in said slot for movement between positions such that in a first position said first detent means engages said bead when said plug portion is fully inserted into said socket to retain said plug portion fully engaged and sealed, in a second position said second detent means is positioned to engage said bead to retain said plug portion within said socket out of sealing engagement therewith and in a third position in which said opening is concentric with said stepped bore for passage of said bead therethrough.

Claim 5

A tube to block mounting assembly comprising a tube having an external annular bead thereon and a cylindrical pilot portion extending from one side of said bead to a free end thereof, a seal ring encircling said pilot portion adjaceNt to said bead, a block having a stepped bore therein including a first bore of a diameter greater than the outside diameter of said bead, a second bore of reduced diameter inwardly of said first bore with an intervening radial shoulder between said first bore and said second bore, said second bore forming a cylindrical wall seat within said block for said seal ring and, a third bore of reduced diameter compared to said second bore and of a size to receive said pilot portion of said tube, said block further having a slot extending from at least one side thereof transversely to intersect said first bore at right angle thereto at a predetermined axial spaced distance from said radial shoulder and, a retainer clip having a longitudinal extending slot opening therein defining at one end thereof an assembly port opening of a diameter to allow said bead to pass therethrough, defining at its other end a reduced diameter opening of a size to partly encircle said tube and of a size to be in interference relation to said bead, said assembly port opening and said reduced diameter opening being interconnected by spaced apart edges defining an opening to slidably receive said tube, said edges being deformed to provide a recessed seat in a direction away from said radial shoulder in said block to receive said bead, said retainer clip being slidably received in said slot for movement from a tube removal position in which said assembly port opening is concentric to said stepped bore to a locked position in which said reduced diameter opening is aligned with said stepped bore and said retainer clip abuts against one side of said bead to effect locking and sealing of said tube in said block and to an intermediate position between said tube removal position and said locked position whereat said recessed seat is in alignment with said stepped bore whereby said tube can move axially in a direction relative to said block in an uncoupling direction until said bead engages said recessed seat.

Claim 6

A tube to block mounting assembly comprising a tube having an external annular bead thereon and a cylindrical pilot portion extending from one side of said bead to a free end thereof, a seal ring encircling said pilot portion adjaceNt to said bead, a block having a stepped bore therein including a first bore of a diameter greater than the outside diameter of said bead, a second bore of reduced diameter inwardly of said first bore with an intervening radial shoulder between said first bore and said second bore, said second bore forming a cylindrical wall seat within said block for said seal ring and, a third bore of reduced diameter compared to said second bore and of a size to receive said pilot portion of said tube, said block further having a slot extending from at least one side thereof transversely to intersect said first bore at right angle thereto at a predetermined axial spaced distance from said radial shoulder and, a retainer clip having a longitudinal extending slot opening therein defining at one end thereof an assembly port opening of a diameter to allow said bead to pass therethrough, defining at its other end a reduced diameter opening of a size to partly encircle said tube and of a size to be in interference relation to said bead, said assembly port opening and said reduced diameter opening being interconnected by spaced apart edges defining an opening to slidably receive said tube, said edges being deformed to provide a recessed seat in a direction away from said radial shoulder in said block to receive said bead, said retainer clip being slidably received in said slot for movement from a tube removal position in which said assembly port opening is concentric to said stepped bore to a locked position in which said reduced diameter opening is aligned with said stepped bore and said retainer clip abuts against one side of said bead to effect locking and sealing of said tube in said block and to an intermediate position between said tube removal position and said locked position whereat said recessed seat is in alignment with said stepped bore whereby said tube can move axially in a direction relative to said block in an uncoupling direction until said bead engages said recessed seat.