U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Clamping collar having an undulation forming a reserve of resilience

Patent 5918350 Issued on July 6, 1999. Estimated Expiration Date: Icon_subject January 23, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Band clamp
Patent #: 4742600
Issued on: 05/10/1988
Inventor: Calmettes ,   et al.

Band clamp with tightening elements formed separately
Patent #: 4890360
Issued on: 01/02/1990
Inventor: Calmettes, et al.

Metal clamp
Patent #: 4907319
Issued on: 03/13/1990
Inventor: Calmettes, et al.

Spring clamp
Patent #: 4987652
Issued on: 01/29/1991
Inventor: Spaulding

Elastic clamp fitting
Patent #: 5208949
Issued on: 05/11/1993
Inventor: Calmettes, et al.

Hose clamp
Patent #: 5353478
Issued on: 10/11/1994
Inventor: Spors

Clamping rings
Patent #: 5430912
Issued on: 07/11/1995
Inventor: Renzo, et al.

Band clamp fitting structure Patent #: 5530996
Issued on: 07/02/1996
Inventor: Calmettes, et al.

Inventors

Application

No. 590158 filed on 01/23/1996

US Classes:

24/20TT, Ratchet and tool tightened band clamp24/20R, Metal bands24/20CW, Circumferentially swagged band clamp24/20EEEnd-to-end integral band end connection

Examiners

Primary: Cuomo, Peter M.
Assistant: Vu, Stephen

Attorney, Agent or Firm

Foreign Patent References

  • 236217A1 EP. 09/13/1987
  • 491610A1 EP. 06/13/1992
  • 545629A3 EP. 06/13/1993

International Class

F16L 033/02

Foreign Application Priority Data

1995-01-25 FR

Abstract

A clamping collar constituted by a rolled-up first metal strip portion referred to as an "inner" portion and having two radial folds in the vicinity of one of its ends forming a "lug", and by a second strip portion referred to as an "outer" portion, which is fixed at its first end to the outside face of the inner portion, which has an undulation forming a reserve of resilience, which is provided at its second end with a hook suitable for engaging behind the lug while the collar is being clamped, and which includes an "intermediate" part situated between the undulation and the hook and extending substantially along the periphery of the inner portion which thus has a covered zone covered by said intermediate part. The collar includes first and second abutment means formed respectively on the intermediate part of the outer portion and on the covered zone of the inner portion and suitable for co-operating with each other to set a limit on use of the reserve of resilience.

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