or
Bookmark and Share
Fiberglass footbridge
   
Document Number
US Patent 4079476
Issued Date
March 21, 1978
Link
Inventors
Green; Andrew (Fort Worth, TX)
Map
Abstract
A fiberglass footbridge comprising a floor, handrails, and a web between the floor and the handrails, all of fiberglass. A continuous layer of fiberglass filaments that extend parallel with the bridge are formed in the handrails and the corners of the floor. U-shaped supporting members are attached around the web and the floor, and are spaced between the ends of the bridge. A subfloor or torque box is formed between the supporting members below the floor.
Drawing
Fiberglass footbridge - US Patent 4079476 Drawing
Drawing from US Patent 4079476
Tags:
Description:
Amusing 0%
Clever 0%
Complex 0%
Efficient 0%
Historic 0%
Important 0%
Innovative 0%
Interesting 0%
Practical 0%
Simple 0%
Number of Claims:
6
Comments:
no comments yet
Owner
Published
March 21, 1978
Application Number
05/814,273
Filed
July 11, 1977
US Classification
14/69.5   14/73
Int'l Classification
E01D   2/00   (20060101)  
Examiner
Attorney/Law Firm
USPTO Field of Search
14/69.5   14/2   14/2.4   14/2.6   14/1   14/17   182/46   52/309.16  
Related Patents
4945595 - Modular ramp assembly - Owned by The Louis Berkman Company (Follansbee, WV)

A lightweight pedestrian ramp assembly for bridging a span of open water between two marine structures is readily adaptable in length and width to meet existing site requirements. The ramp assembly is constructed of successive elongated ramp units, each of which is in turn constructed of adjacent, elongated channel shaped fiberglass modules defining a planar walking surface across the backs of the channel webs.

Claims
Description
About| FAQs| Terms & Disclaimer| Link to Us| Contact Us