US Patent No: 4,640,404

Number of patents in Portfolio can not be more than 2000

Telescopic roller

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Importance

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Abstract

A telescoping roller conveyor is disclosed wherein interwoven rollers are provided on axles. The axles are linked to adjacent axles within siderails. The links allow the axle separation to expand a limited distance longitudinally as siderails are telescopically extended. The links are enclosed in channel-shaped telescoping siderails and do not project above the level of the rollers in any position and thus do not provide any obstruction to items moving over the rollers along the conveyor. The axles are seated into special round plastic bushings that aid the movement of the telescoping longitudinal siderails and the relative movement of the axles to and from each other.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TELSPAN, INC.PALOS HEIGHTS, IL3

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bigott, Jeffry J 1972 Rollins Ct., Naperville, IL 60565 2 10

Cited Art

Patent Info (Count) # Cites Year
 
REGINA-EMERSON COMPANY (1)
4,557,374 Modular conveyor belting with cam-slotted links for maintaining transverse distribution of tension while negotiating horizontal curves and for facilitating cleaning 24 1982

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
LOCKHEED MARTIN CORPORATION (2)
6,698,580 Adjustable roller conveyor module 2 2002
6,719,119 Self-storing roller conveyor extension 3 2003
 
AXIA INCORPORATED (1)
5,050,718 Conveyor transferring device 5 1990
 
OMNIDIRECTIONAL CONTROL TECHNOLOGY INC. (1)
6,068,111 Collapsible feed conveyor system 9 1998
 
SIEMENS INDUSTRY, INC. (1)
7,500,556 Make-up bed assembly for conveyor system 1 2006