Harry Louis Hain

US Patent:

58760237, Mar 2, 1999

Filed:

Sep 18, 1996

Appl. No.:

8/715677

Inventors:

Harry L. Hain - Erie PA
Michael D. Clark - Redmond WA

Assignee:

Lord Corporation - Cary NC
The Boeing Co. - Seattle WA

International Classification:

F16F 700

US Classification:

2671414

Abstract:

An insert used to connect aircraft floor panels, and the like, to supporting structure includes features which function to isolate the supported panel from vibrations in the supporting structure. The isolation of the panels leads to reductions in SIL (Speech Interference Level) noise within aircraft cabins. The insert consists of internal and external rigid components separated by a contoured elastomeric component. The elastomeric component is preloaded when installed via a fastener extending through the inner rigid component and attaching to the supporting structure. The outer and inner rigid components are sized such that the inner rigid component will not pass through the outer rigid component, thus providing a safetied installation of the panel. The elastomeric component extends below the bottom of the outer rigid component and provides soft snubbing against the supporting structure during loading of the panels. This allows some level of isolation while restricting motion of the panels.

US Patent:

58760245, Mar 2, 1999

Filed:

Sep 4, 1997

Appl. No.:

8/923506

Inventors:

Harry L. Hain - Erie PA

Assignee:

Lord Corporation - Cary NC

International Classification:

B64C 114

US Classification:

2671414

Abstract:

An insert used to connect aircraft floor panels, and the like, to supporting structure includes features which function to isolate the supported panel from vibrations in the supporting structure. The isolation of the panels leads to reductions in SIL (Speech Interference Level) noise within aircraft cabins. The insert consists of internal and external rigid components separated by a contoured elastomeric component. The elastomeric component is preloaded when installed via a fastener extending through the inner rigid component and attaching to the supporting structure. The outer and inner rigid components are sized such that the inner rigid component will not pass through the outer rigid component, thus providing a safetied installation of the panel. The elastomeric component extends below the bottom of the outer rigid component and provides soft snubbing against the supporting structure during loading of the panels. This allows some level of isolation while restricting motion of the panels.