초록 ▼

The surface port device has a tube with a throughbore between its inlet and outlet ends, and an enlarged flat base at the outlet end, suited to be bonded by adhesive securely to a structure surface with the tube bore aligned over a surface crack. The inlet tube end is stepped, having several adjacen

The surface port device has a tube with a throughbore between its inlet and outlet ends, and an enlarged flat base at the outlet end, suited to be bonded by adhesive securely to a structure surface with the tube bore aligned over a surface crack. The inlet tube end is stepped, having several adjacent generally cylindrical axially extended land areas of progressively smaller diameters I.D. in moving downstream toward the outlet end. The land areas are sized both in diameter and axial length to correspond to certain more common generally cylindrical land areas of conventional available material mixing/dispensing tubes proximate the outlet nozzles thereof. This allows the establishment of a mechanically sound leakproof separable joint between the material dispensing tube end the surface port device. A captive check ball in the tube bore automatically can be shifted between opening the port bore or closing it to preclude material backflow. A cap can cooperate snuggly with the port bore land area for mechanically positive bore port closure, while further unseating the ball check to bleed the port bore beforehand.

대표청구항 ▼

A port device for funneling material into a surface crack, comprising the combination of a tube having a throughbore between its inlet and outlet ends, and a base at the outlet end suited to be bonded by adhesive to the surface with the tube bore aligned over the therein; the tube at the inlet end b

A port device for funneling material into a surface crack, comprising the combination of a tube having a throughbore between its inlet and outlet ends, and a base at the outlet end suited to be bonded by adhesive to the surface with the tube bore aligned over the therein; the tube at the inlet end being sized both in diameter and axial length to cooperate with conventional available material mixing/dispensing tubes proximate the outlet nozzles thereof, operable to establish a generally leakproof separable joint between the material dispensing tube and the port device; and check means operable to be shifted between different positions in the tube throughbore for opening the throughbore to material flow or closing it to preclude material backflow, the check means comprising the combination of a ball and means holding the ball captive in the tube throughbore while allowing free axial movement between opposite operative positions, said tube having an annular seat defining part of the tube throughbore, whereby axial ball movement against the seat defines one operative position effectively closing the tube throughbore and precluding material backflow, and said tube throughbore being open with said ball in the opposite operative position.