Patent ID: 11872425
Assignee: MINIMAX VIKING RESEARCH & DEVELOPMENT GMBH
Field: Environmental technology (Chemistry)
Classification: CPC A  F | IPC A

Claim 0:
1. A fire protection system, comprising:
a pipe header having internal fluid passageway extending along a longitudinal axis, the pipe header having an opening formed therein radially about the longitudinal axis;
a branch connector including a unitary tubular member having a first terminal end, and a second terminal end spaced from the first terminal end, the unitary tubular member including an internal gasket chamber surface between the first terminal end and the second terminal end with a single annular seal member housed in the tubular member and supported therein by the internal gasket chamber surface, an internally threaded surface between the gasket chamber surface and the second terminal end, and an internal stepless surface extending from the first terminal end to the internal gasket chamber surface, the first terminal end being welded about the opening in the pipe header with the stepless surface in fluid communication with the internal fluid passageway of the pipe header; and
a fire protection device comprising a frame having a frame body with a frame inlet, a frame outlet and a frame internal passageway extending from the frame inlet to the frame outlet along a device axis, the frame body being in a threaded engagement with the internally threaded surface of the tubular member to compress the annular seal member and establish the frame internal passageway of the fire protection device in fluid communication with the fluid passageway of the pipe header;
wherein the first terminal end and the second terminal end are axially spaced and coaxially aligned along a central axis with each of the stepless surface, the internal gasket chamber surface and internally threaded surface being circumscribed about the central axis, the stepless surface including a first segment and a second segment, the second segment being contiguous with and between each of the first segment and the internal gasket chamber surface, the first segment of the stepless surface extending parallel to the central axis to define a constant internal diameter about the central axis and the second segment of the stepless surface being skewed at a constant slope with respect to the central axis to define a decreasing diameter about the central axis from the first segment to the internal gasket chamber surface.