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US 8,136,436 B2Granted
Saw chain link with offset footprint
AssigneeBlount, Inc.
InventorsIan Osborne, Mike Harfst, Christopher Seigneur
Life of this patent
Estimating the term…
Abstract
In various embodiments, a saw chain is provided that includes a rail engaging link that has an offset footprint within the link itself and/or with respect to other links in the chain that are adapted to ride on the same rail. Saw chains as provided may be used in a variety of applications, including but not limited to wood cutting and aggregate cutting applications.
Claims18
A saw chain comprising:
- a drive link for riding in a groove of a guide bar, wherein the groove is disposed between a first rail and a second rail of the guide bar;
- and
- a rail engaging link, coupled to the drive link, for traversing the first rail of the guide bar in a direction of travel, the rail engaging link including a first foot portion for contacting the first rail with a first footprint and a second foot portion for contacting the first rail with a second footprint,
- wherein the first footprint is laterally offset from the second footprint with respect to the direction of travel;
- and
- Wherein the first foot portion is a leading foot portion, and the second foot portion is a trailing foot portion, and wherein at least a portion of the rail engaging link between the leading foot portion and the trailing foot portion does not contact the first rail of the guide bar as the rail engaging link traverses the first rail.
3 more elements
A saw chain comprising:
- a drive link for riding in a groove of a guide bar, wherein the groove is disposed between a first rail and a second rail of the guide bar;
- and
- a rail engaging link, coupled to the drive link, for traversing the first rail of the guide bar in a direction of travel, the rail engaging link including a first foot portion for contacting the first rail with a first footprint and a second foot portion for contacting the first rail with a second footprint,
- wherein the second footprint is laterally offset and/or skewed from the first footprint with respect to the direction of travel;
- and
- wherein the first foot portion is a leading foot portion, and the second foot portion is a trailing foot portion, and wherein at least a portion of the rail engaging link between the leading foot portion and the trailing foot portion does not contact the first rail of the guide bar as the rail engaging link traverses the first rail.
3 more elements
Dependencies are inferred from the claim text.