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US Patent 7147419 - Element of fastening accessories to metal windows and doors
US Patent Issued on December 12, 2006
Estimated Patent Expiration Date:
June 20, 2025Estimated 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.
Estimated Patent Expiration Date:
June 20, 2025Estimated 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.AbstractAn 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.Other References
| InventorAssigneeApplicationNo. 11156805 filed on 06/20/2005US 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 sectionsField of Search411/182, Nonmetallic nut, resiliently deformed during assembly411/80.5, Sleeve type (headless) with longitudinal slot, slit, or split expanded by fastener411/80.6, Sleeve threaded411/58, Both ends slotted411/55, Expander threadedly engaged by mover411/508, Having resilient securing structure on shank411/913, SELF-EXPANDING ANCHOR52/704, Socket type52/364INSTALLED SCREED OR UNIT WITH SPECIFIED FEATURE RETAINING PENETRATING FASTENERExaminersPrimary: Saether, FlemmingAttorney, Agent or FirmUS Patent References2379786, 3611861, 3874264, 4358234, Part fixing systemIssued on: 11/09/1982 Inventor: Takegawa , et al.4708551Expansion dowel assembly Issued on: 11/24/1987 Inventor: Richter , et al. Foreign Patent References
International ClassesF16B 13/12F16B 13/02 |
