Blow-molded plastic structures

US12408747B2 · kind B2 · utility

Assignee

• LIFETIME PRODUCTS, INC. · US

Inventors

• S. Curtis Nye · Clinton, US
• Carl R. Stanford · Clinton, US
• Wendell Peery · Kaysville, US
• Eric Olsen · West Haven, US
• Charles Monson · Syracuse, US
• Frank Clegg · Fruit Heights, US

Key dates

• Filing date: Feb 22, 2017
• Grant date: Sep 9, 2025
• Expiry date: Feb 22, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47B2200/001
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A large, thin, generally planar panel constructed from blow-molded plastic may include a first surface, a second surface, and a hollow interior portion disposed between the first and second surfaces. The panel may include a nominal panel thickness (PT), which may be the distance between the first surface and the second surface, and a nominal wall thickness (WT), which may be the thickness of the outer wall of the blow-molded plastic structure. A plurality of depressions may be integrally formed in the second surface and a nominal distance (D) separating adjacent depressions may be measured from an edge of one depression to an edge of the adjacent depression. The relationship between the nominal panel thickness, the nominal wall thickness, and the nominal distance between adjacent depressions is shown by the equation WT·PT·D≤0.030.