Bottom drop tee with door catch

摘要

A catch for securing a door to an object includes an engagement member connected to the door engaging a receiving member of a mount on the object. The door includes a first arm with an oblong hole for pivoting about a pin connected to the mount, and an engagement pin. Moving the door from a closed position causes the engagement pin to rotate with the door about the pivot pin. The door slides downward along the pivot pin as the pivot pin travels within the oblong opening, and the engagement pin makes contact with the receiving member, thereby retaining the door in an open position. Moving the door upward moves the pivot pin downward within the oblong opening disengaging the engagement pin from the receiving member, allowing the door to rotate to a closed position. A latch opposite the first arm retains the door in a closed position.

主权项

1. A hopper tee for transferring material from a container, comprising:
a vertical tubular portion extending between an upper end having an upper opening, and a lower end having a lower opening, the vertical portion defining a vertical passage for transferring material from the container through the tee; a horizontal tubular portion extending between a first end having a first opening, and a second end having a second opening, the horizontal tubular portion including a wall extending between an inner surface and an outer surface defining a horizontal passage; wherein the vertical passage intersects the horizontal passage for transferring material from the container through the tee; a bottom opening extending through the bottom of the horizontal tubular portion wall; a door for sealing the bottom opening of the horizontal tubular portion; a mechanism for securing the door to the horizontal tubular portion, comprising:
a first mount connected to the horizontal tubular portion, comprising:
an arm having a top edge, an opposite bottom edge, and sidewalls therebetween, wherein the arm defines a hole between the sidewalls; anda receiving member adjacent the hole at a top edge of the arm;an engagement member connected to the door, comprising:
a first arm defining an oblong hole with sidewalls therethrough, the oblong hole having a first width and an elongated second width; andan engagement pin connected to the first arm for engaging the receiving member;a pivot pin admitted within the mount arm hole and the engagement member first arm hole;wherein the engagement member rotates about the pivot pin; andwherein the pivot pin moves between the sidewalls along the length of the second width when the engagement pin is aligned to engage the receiving member.