Patent US5685080A successfully refreshed from Google Patents.
US5685080A
Expired / Lapsed
US
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Battery powered chain saw
Assignee: Makita Corp
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Filing: 1996-04-22
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Granted: 1997-11-11
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Expires: 2016-04-22
Abstract
Abstract A gear housing is arranged at or by the center of a main body housing of a chain saw and a handle housing extends backward therefrom. A motor housing is formed on the left side of the gear housing perpendicularly. A support member and a cover are attached on the right side of the gear housing. A guide bar extends forward from the main body housing and the guide bar retrains an endless saw chain therearound. The handle housing includes a trigger beside a connecting portion between the handle housing and the gear housing. A battery is disposed in a detachable manner at a rear end of the handle housing. The center of gravity of the chain saw is located at or by the trigger of the handle housing.
Inventors
- 👤 Kunio Amano
- 👤 Kazuya Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:45
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/08; B27B17/0008; Y; Y10; Y10S; Y10S30/00; Y10S30/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
A chain saw comprising: a main body having a front portion, a rear portion and a central portion between said front and rear portions, said main body including a handle extending from said rear portion; a guide bar extending from said front portion of said main body; a cutting chain disposed around said guide bar; a motor for driving said cutting chain, said motor having a trigger for actuating the chain saw, said motor and said trigger being disposed generally at said central portion of said main body; and a battery providing electric power to said motor, said battery being detachably connected to a rear portion of said handle, wherein a center of gravity of said chain saw is located generally at said trigger of said motor when said battery is attached to said handle.
Claim 2
Dependent Claim
135 words
A chain saw comprising: a main body having a front portion, a rear portion and a central portion between said front and rear portions, said main body including a handle extending from said rear portion; a guide bar extending from said front portion of said main body; a cutting chain disposed around said guide bar; a motor for driving said cutting chain, said motor having a trigger for actuating the chain saw, said motor and said trigger being disposed generally at said central portion of said main body; and a battery providing electric power to said motor, said battery being detachably connected to a rear portion of said handle, wherein a center of gravity of said chain saw is located generally at said trigger of said motor when said battery is attached to said handle.
Claim 3
Dependent Claim
18 words
A chain saw according to claim 1, wherein said handle is constructed and arranged to permit gripping thereof.
Claim 4
Dependent Claim
27 words
A chain saw according to claim 1, wherein said handle inclines downwardly and in a rearward direction with respect to a longitudinal axis of said guide bar.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-10 | 2001-05-12 | 2001-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-10 | 2005-05-12 | 2005-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-10 | 2009-05-12 | 2009-11-11 | $7700.00 | Window Closed / Lapsed |