Disc saw felling head chip discharge

Details Disc saw felling head chip discharge Disc saw felling head chip discharge

1997-10-20

1998-10-06

Bray, W. Donald

Woodworking

Special-work machine

Tree felling

144 41, 144335, 144336, 303795, 83 78, 83109, A01G 2308

Patent

active

058162992

ABSTRACT:
A disc saw felling head has a window in a sidewall of the head through which chips are discharged in a tangent plane and a discharge chute over the window. The chute has a top wall and inner and outer sidewalls shaped so that chips exiting the head through the window are directed along a chip path which is generally parallel to the tangent plane and first turns further rearward and then turns outward through a lateral discharge opening in the chute.

REFERENCES:
patent: 4932447 (1990-06-01), Morin
patent: 4987935 (1991-01-01), Corcoran et al.
patent: 5113919 (1992-05-01), MacLennan
Applicant's Exhibit A--Timberjack "2618/2628 Level Swing Feller Bunchers" brochure, two pages, admitted prior art.
Applicant's Exhibit B--Photo of Denharco "Snowblower" type discharge, admitted prior art.
Applicant's Exhibit C--Photos of Hydro-Ax 22 Ex Bunching Saw discharge, admitted prior art.
Applicant's Exhibit D--Page 5 of "Tigercat Safety Bulletin" showing prior art chip spray patterns, admitted prior art.
Applicant's Exhibit E--Page 12 of "Tigercat Safety Bulletin" discussing Saw housing entrance and exit space, admitted prior art.

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