Element of fastening accessories to metal windows and doors

Patent 7147419 Issued on December 12, 2006. Estimated Expiration Date:

June 20, 2025. 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.

Abstract Claims Description Full Text

Patent References

2379786

3611861

3874264

Part fixing system
Patent #: 4358234
Issued on: 11/09/1982
Inventor: Takegawa , et al.

Expansion dowel assembly Patent #: 4708551
Issued on: 11/24/1987
Inventor: Richter , et al.

Inventor

Balbo Di Vinadio, Aimone

Assignee

Savio S.p.A.

Application

No. 11156805 filed on 06/20/2005

US Classes:

411/182, Nonmetallic nut, resiliently deformed during assembly411/80.6, Sleeve threaded411/58, Both ends slotted52/704, Socket type411/508, Having resilient securing structure on shank411/80.2, Three or more expandable portions411/32Made up of plural expansible segments or sections

Examiners

Primary: Saether, Flemming

Attorney, Agent or Firm

Foreign Patent References

196 07 029 DE 08/01/1997
199 62 955 DE 07/01/2001
1 223 274 EP 07/01/2002
417651 GB 10/01/1934

International Classes

F16B 13/12
F16B 13/02

Abstract

An element for fastening accessories to metal window and door frames includes a monolithic metal body with a cylindrical central portion having a threaded inner hole. An insertion portion has a cone frustum shape with decreasing diameter from the diameter of the cylindrical central portion towards one end. A stop portion includes a circumferential throat delimited by a shoulder whose outer diameter is greater than the diameter of the cylindrical central portion. The outer diameter of the shoulder is joined to the cylindrical central section by a cone frustum shaped segment. A first series of through longitudinal grooves extends on a part of the length of the cylindrical central portion and on the insertion portion and defines a first section deformable radially inwardly relative to a non-deformed resting configuration. A second series of through longitudinal grooves extends on a part of the length of the cylindrical central portion and on the stop portion and forms a second section deformable elastically inwardly relative to the non-deformed configuration.