EP 0259069 A3 19890215 - WAFERBOARD LUMBER
Title (en)
WAFERBOARD LUMBER
Publication
Application
Priority
CA 517415 A 19860903
Abstract (en)
[origin: EP0259069A2] Substitute lumber pieces having strengths and densities substantially equivalent to lumber are cut from single layer panels (18) of over about 1 and normally less than 4 inch thickness made from wood wafers. The wafers are oriented with their lengths having a mean deviation to the longitudinal length of the panel measured in the major plane of the panel in the range of 0 to 10 degrees and a mean deviation measured in a minimum longitudinal plane perpendicular to the major plane from 0 to about 5 degrees and have an average effective length of at least 8 inches (200 mm), and preferably an average thickness less than 0.15 inches (4 mm) and a width of at least 0.25 inches (6 mm). Lumber is made by cutting the panel longitudinally. Preferably the panels are formed to have a substantially uniform density profile throughout their thicknesses.
IPC 1-7
IPC 8 full level
B27B 1/00 (2006.01); B27D 1/04 (2006.01); B27D 5/00 (2006.01); B27N 3/00 (2006.01); B27N 3/04 (2006.01); B27N 3/14 (2006.01); B27N 3/18 (2006.01)
CPC (source: EP)
B27B 1/00 (2013.01); B27N 3/04 (2013.01); B27N 3/143 (2013.01)
Citation (search report)
- [A] US 4241133 A 19801223 - ADAMS ROY D [US], et al
- [A] US 4492726 A 19850108 - ROSENBERG GEORGE N [CA]
- [A] FR 1011675 A 19520625
- [AD] US 4122236 A 19781024 - HOLMAN JOHN A
- [AD] US 4494919 A 19850122 - KNUDSON ROBERT M [CA], et al
- [A] DE 3323639 A1 19850103 - BAEHRE & GRETEN [DE]
- [E] US 4751131 A 19880614 - BARNES DEREK [CA]
- [AP] US 4610913 A 19860909 - BARNES DEREK [CA]
- [A] PATENT ABSTRACTS OF JAPAN, vol. 5, no. 39 (M-59)[711], 14th March 1981; & JP-A-55 164 141 (MASAO TAKAHASHI) 20-12-1980
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0259069 A2 19880309; EP 0259069 A3 19890215; EP 0259069 B1 19921209; AT E83190 T1 19921215; AU 608237 B2 19910328; AU 7719787 A 19880310; CA 1281528 C 19910319; CN 1008076 B 19900523; CN 87106342 A 19880413; DE 3782990 D1 19930121; DE 3782990 T2 19930429; ES 2106009 T3 19971101; FI 86822 B 19920715; FI 86822 C 19921026; FI 873811 A0 19870902; FI 873811 A 19880304; JP 2527761 B2 19960828; JP S63107507 A 19880512; NZ 221605 A 19910226
DOCDB simple family (application)
EP 87307378 A 19870820; AT 87307378 T 19870820; AU 7719787 A 19870819; CA 517415 A 19860903; CN 87106342 A 19870902; DE 3782990 T 19870820; ES 87307378 T 19870820; FI 873811 A 19870902; JP 22010187 A 19870902; NZ 22160587 A 19870828