Floating captive screw

US8794889B2 · kind B2 · utility

Assignee

• Southco, Inc. · US

Inventors

• Thomas V. Aukzemas · Wilmington, US
• Albert J. Frattarola · Swarthmore, US
• Boyd A. Wolf · Coatesville, US
• James F. Standish, III · Kennett Square, US
• Joseph N. Caulfield · Chester, US

Key dates

• Filing date: Sep 17, 2007
• Grant date: Aug 5, 2014
• Expiry date: Jul 21, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S411/999
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A captive screw for securing together two panels has a screw and a spring extending between the screw head and a ferrule. A collar is formed on the screw shank under the ferrule to limit penetration of the screw threads in a bottom panel so that the upper panel floats on the spring.