Jeffrey M Weeks

US Patent:

58948732, Apr 20, 1999

Filed:

Sep 30, 1997

Appl. No.:

8/940820

Inventors:

Jeffrey Weeks - Belchertown MA

Assignee:

Tiberwolf Manufacturing Corporation - Rutland VT

International Classification:

B27L 700

US Classification:

144 46

Abstract:

Logs are cut to firewood length and split on a trailer that has a jacking foot at the trailer tongue and that defines an elongated bed for supporting the log lengthwise of the trailer. A superstructure pivotably supports a chainsaw for cutting the log, and a driven roller engages the top of the log to feed it incrementally into the cut-off saw's path. A conventional wood splitter is also incorporated in the same trailer.

US Patent:

20140138168, May 22, 2014

Filed:

Mar 14, 2013

Appl. No.:

13/828484

Inventors:

iRobot Corporation - , US
Jeffrey L. Weeks - South Easton MA, US
Lee Sword - Hollis NH, US
Annan Michael Mozeika - Groton MA, US

Assignee:

iRobot Corporation - Bedford MA

International Classification:

B25J 5/00
B62D 55/104

US Classification:

180 91, 305132, 901 1

Abstract:

A lightweight mobile robot includes a chassis less than 500 pounds and two independent tracked drives including a drive wheel assembly, four or more independently suspended bogie assemblies, an idler wheel assembly, a compliant front shoe fixedly coupled to an independently suspended bogie assembly positioned adjacent the idler wheel assembly, and a compliant elastomer track entraining the drive wheel, road wheels, idler wheel assembly and compliant front shoe. The bogie assembly includes a serpentine suspension arm having a corresponding road wheel rotatably mounted at a distal end thereof, the bogie arm swingable through a range entirely beneath the chassis. The serpentine suspension arm provides clearance for adjacent road wheels to swing past one another without making contact with any portion of the adjacent bogie assembly. The compliant elastomer track has center guides and peripheral drive features protruding therefrom for engaging the drive wheel, road wheels, and idler wheel.