Cutlery – Cutting tools – With blade moving means
Reexamination Certificate
1999-04-28
2001-06-05
Peterson, Kenneth E. (Department: 3724)
Cutlery
Cutting tools
With blade moving means
C056S012700
Reexamination Certificate
active
06240643
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a cutting head for a wire cutting machine, in particular a string trimmer.
BACKGROUND ART
Wire cutting machines are known, which comprise a substantially cylindrical hub, and a number of filiform elements, each comprising an end portion connected to the hub, and each extending from the hub substantially radially; and the hub is connected to an output shaft rotated by an electric motor or combustion engine of the machine to rotate the filiform elements at high speed and so perform the desired cutting action.
On known cutting machines, the spin imparted to the filiform elements by the high rotation speed of the hub may be such as to detach the elements from the hub, thus resulting in injury to the user.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to documents U.S. Pat. No. 2,663,137 and U.S. Pat. No. 4,062,115 describe cutting heads as defined in the preamble of claim
1
provide a cutting head for a wire cutting machine, designed to prevent detachment of the filiform elements.
According to the present invention, there is provided a cutting head for a wire cutting machine, in particular a string trimmer as claimed in claim
1
.
REFERENCES:
patent: 2663137 (1953-12-01), Asbury
patent: 4043037 (1977-08-01), Okamoto et al.
patent: 4062115 (1977-12-01), Lee
patent: 4190954 (1980-03-01), Walto
patent: 4685279 (1987-08-01), Gullet
patent: 4726176 (1988-02-01), McGrew
patent: 4756146 (1988-07-01), Rouse
patent: 5048278 (1991-09-01), Jones et al.
patent: 5768867 (1998-06-01), Carlsen
patent: 5836227 (1998-11-01), Dees, Jr. et al.
patent: 5852876 (1998-12-01), Wang
patent: 6052907 (2000-04-01), Wang
Ladas & Parry
Peterson Kenneth E.
LandOfFree
Cutting head for a wire cutting machine, in particular a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cutting head for a wire cutting machine, in particular a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cutting head for a wire cutting machine, in particular a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2484699