IP Library Granted Patent US 8,555,869
Granted Patent B2
US 8,555,869 · App. 13/725,635 · Granted Oct 15, 2013

Saw chain with defined pitch

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Quick Facts
Patent No.
US 8,555,869
App. No.
13/725,635
Granted
Oct 15, 2013
Kind
B2
Abstract

Embodiments of the disclosure provide a saw chain having a pitch in the range of approximately 0.440 to approximately 0.450. Embodiments also include tie straps and/or other components having fluid distribution features.

Claims (28)

1. A saw chain for a hand held chain saw comprising:

a plurality of drive links and cutter links coupled together with tie straps, the drive links, tie straps and cutter links being pivotally coupled by rivets passing though aligned rivet holes;

wherein the saw chain has a pitch within a range of approximately 0.440 inches to approximately 0.450 inches, and wherein the saw chain has a maximum width of approximately 0.225 inches.

2. The saw chain of claim 1 , wherein the pitch is approximately 0.444 inches.

3. The saw chain of claim 1 , wherein the tie straps include a fluid distribution feature that allows the fluid to be deposited at the interface between the tie strap and a guide bar rail.

4. The saw chain of claim 3 , wherein the fluid distribution feature is an indentation and/or a notch in the side of the tie strap between a first and a second tie strap rivet hole.

5. A method of manufacturing saw chain for a hand held chain saw, comprising:

providing a plurality of chain components including drive links, cutter links and tie straps;

coupling the plurality of drive links with the plurality of cutter links using the tie straps;

assembling the chain components such that the saw chain has a resulting pitch in the range of approximately 0.440 inches to approximately 0.450 inches.

6. The method of claim 5 , wherein the assembling the chain components includes forming a saw chain with a pitch of approximately 0.444 inches.

7. A saw chain for a hand held chain saw comprising:

a plurality of chain components including drive links, cutter links, and/or tie straps, the chain components pivotally coupled by rivets passing though aligned rivet holes;

wherein the saw chain has a pitch within a range of approximately 0.440 inches to approximately 0.450 inches.

8. The saw chain of claim 7 , wherein the saw chain has a maximum width of approximately 0.225 inches.

9. The saw chain of claim 7 , wherein the pitch is approximately 0.444 inches.

10. The saw chain of claim 7 , wherein the plurality of chain components comprise at least one tie strap, wherein the tie strap includes a fluid distribution feature that allows the fluid to be deposited at the interface between the tie strap and a guide bar rail.

11. The saw chain of claim 10 , wherein the fluid distribution feature is an indentation and/or a notch in the side of the tie strap between a first and a second tie strap rivet hole.

12. A method of manufacturing saw chain for a hand held chain saw, comprising:

providing a plurality of chain components including drive links, cutter links, and/or tie straps; and

coupling the plurality of chain components by aligning rivet holes of the components and passing rivets through the aligned rivet holes, such that the saw chain has a resulting pitch in the range of approximately 0.440 inches to approximately 0.450 inches.

13. The method of claim 12 , wherein providing a plurality of chain components includes providing a saw chain with a maximum width of approximately 0.225 inches.

14. The method of claim 12 , wherein coupling the plurality of chain components includes forming a saw chain with a pitch of approximately 0.444 inches.

15. A hand held chain saw comprising:

a chain saw body weighing less than 30 pounds, the chain saw body including a guide bar; and

a saw chain configured to traverse the guide bar, the saw chain comprising a plurality of chain components including drive links, cutter links, and/or tie straps, the chain components pivotally coupled by rivets passing though aligned rivet holes, wherein the saw chain has a pitch within a range of approximately 0.440 inches to approximately 0.450 inches.

16. The hand held chain saw of claim 15 , wherein the saw chain has a maximum width of approximately 0.225 inches.

17. The hand held chain saw of claim 15 , wherein the power output of the chain saw is about 6.2 horsepower or less.

Assignments (14)
THIRD LIEN PATENT SECURITY AGREEMENT Recorded Mar 10, 2025
From: OREGON TOOL, INC.; WOODS EQUIPMENT CO.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070454/0422 →
PATENT SECURITY AGREEMENT Recorded Mar 3, 2025
From: OREGON TOOL, INC.; WOODS EQUIPMENT COMPANY
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 070376/0180 →
INTERCOMPANY PATENT SECURITY AGREEMENT Recorded Mar 3, 2025
From: OREGON TOOL, INC.; WOODS EQUIPMENT COMPANY
To: GLAS AMERICAS LLC, AS COLLATERAL AGENT
Reel/Frame 070376/0194 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Mar 3, 2025
From: OREGON TOOL, INC.; WOODS EQUIPMENT COMPANY
To: GLAS AMERICAS LLC, AS COLLATERAL AGENT
Reel/Frame 070376/0220 →
CHANGE OF NAME Recorded Oct 20, 2021
From: BLOUNT, INC.
To: OREGON TOOL, INC.
Reel/Frame 057879/0589 →
SECURITY AGREEMENT (ABL) Recorded Oct 19, 2021
From: OREGON TOOL, INC.; SPEECO, INCORPORATED; WOODS EQUIPMENT COMPANY
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 057859/0549 →
SECURITY AGREEMENT (TERM LOAN) Recorded Oct 15, 2021
From: OREGON TOOL, INC.; SPEECO, INCORPORATED; WOODS EQUIPMENT COMPANY
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 057827/0381 →
RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT R/F 038427/0148 Recorded Oct 15, 2021
From: BARCLAYS BANK PLC, AS COLLATERAL AGENT
To: OREGON TOOL, INC. (F/K/A BLOUNT, INC.)
Reel/Frame 057827/0237 →
SECURITY INTEREST Recorded Apr 13, 2016
From: BLOUNT, INC.
To: BARCLAYS BANK PLC, AS COLLATERAL AGENT
Reel/Frame 038427/0148 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS FILED AT R/F 035595/0451 Recorded Apr 12, 2016
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: BLOUNT, INC.
Reel/Frame 038419/0815 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded May 6, 2015
From: BLOUNT, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 035595/0451 →
RELEASE OF PATENT SECURITY INTEREST Recorded May 6, 2015
From: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
To: SPEECO, INCORPORATED; WOODS EQUIPMENT COMPANY; BLOUNT, INC.; BLOUNT INTERNATIONAL, INC.; DIXON INDUSTRIES, INC.; FABTEK CORPORATION; FREDERICK MANUFACTURING CORPORATION; GEAR PRODUCTS, INC.; WINDSOR FORESTRY TOOLS LLC; OMARK PROPERTIES, INC.; BI, L.L.C.; 4520 CORP., INC.
Reel/Frame 035603/0495 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2013
From: OSBORNE, IAN S.; VANDERZANDEN, JAMES L.
To: BLOUNT, INC.
Reel/Frame 030953/0071 →
SUPPLEMENTAL PATENT SECURITY AGREEMENT Recorded Apr 5, 2013
From: BLOUNT, INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
Reel/Frame 030157/0602 →