Patent ID: 11933432
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A connection apparatus comprising:
a first compression nut comprising a first narrow portion and a first threaded portion, the first narrow portion having a first internal cavity with a first diameter;
a second compression nut comprising a second narrow portion and a second threaded portion, the second narrow portion having a second internal cavity with a second diameter;
a sleeve fitting body between the first compression nut and the second compression nut, the sleeve fitting body comprising:
a third threaded portion corresponding to the first threaded portion,
a fourth threaded portion corresponding to the second threaded portion,
an inner cylindrical portion extending toward the first compression nut to form a first end-facing inner cavity portion having a third diameter and a first end-facing ring-shaped cavity portion having the first diameter, the first end-facing ring-shaped cavity portion facing the first compression nut and comprising a gap between an outer wall of the first end-facing inner cavity portion and an inner wall of the first end-facing ring-shaped cavity portion, and
a second end-facing cavity portion having the second diameter, an end of the second end-facing cavity portion forming a portion of a step portion in the sleeve fitting body;

a first ferrule between the first compression nut and the sleeve fitting body, the narrowest internal diameter of the first being wide enough such that a tube may pass between the first ferrule and the inner cylindrical portion; and
a second ferrule between the sleeve fitting body and the second compression nut.