Patent · US Active

Plug-in piece

US9388921B2 · kind B2 · utility

0Cited by

6References

8Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Hans Unger · Weinheim, DE
Ralf Heldmann · Wald-Michelbach, DE
Ingo Stephan · Görlitz, DE
Markus Clemens · Reichelsheim, DE
Carsten Hartmann · Hirschberg, DE
Ernst JAKOB · Rimbach, DE
Stephan REDDIG · Kaiserslautern, DE

Key dates

Filing date	Aug 28, 2013
Grant date	Jul 12, 2016
Priority date	—
Expiry date	Mar 12, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16L37/025
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A plug-in piece 1 for sealing connection of two mutually assigned cylindrical surfaces includes an essentially tubular support body 2, which on its ends exhibits annularly encircling sealing elements, which can be made to engage to produce a sealing connection with the cylindrical surfaces to be sealed, wherein at least one of the sealing elements is configured as an annularly encircling sealing bead 3, 30 on the outer surface of the support body 2, with a spherically curved sealing surface. Provision is made that the spherical radius of the sealing surface (3, 30) is chosen so that the center of the sphere is roughly at the axis of support body (2) symmetry. Thus, the compression forces are ensured to remain largely constant, independent of the angular setting over the entire surface of the sealing bead.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.