Patents Assigned to Domtar Limited
  • Patent number: 3963029
    Abstract: A diaper structure folded into a substantially impervious package to impair the escape of vapors therefrom.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: June 15, 1976
    Assignee: Domtar Limited
    Inventor: William Victor Hayes Brooks
  • Patent number: 3963064
    Abstract: A system of substantially whole tree utilization wherein the trees are felled and subsequently slashed with the branches and top section intact to form discrete tree sections including a top section and branched bole sections, and these sections are fed into a conventional drum debarker to preferably dry and de-bark and de-branch the sections, thereby to provide branched and de-barked wood for further processing and separating bark, branches and needles. The bark and branches may be separated from each other and from the needles. The needles may be processed separately to produce chemical compounds for pharmaceutical purposes or any other use. The system of the present invention permits more economic harvesting of wood an increases the utilization of the tree by permitting utilization of not only the bole section, but also the normally unmerchandizable top and branches together with the needles.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: June 15, 1976
    Assignee: Domtar Limited
    Inventor: George T. Hayes
  • Patent number: 3945386
    Abstract: A disposable diaper constructed to keep the hydrophobic diaper facing sheet relatively dry by interposing a perforated plastic film between the facing and the absorbent pad.
    Type: Grant
    Filed: August 8, 1972
    Date of Patent: March 23, 1976
    Assignee: Domtar Limited
    Inventors: Edward Anczurowski, Brian E. Julien
  • Patent number: 3940055
    Abstract: A blank and a carton are formed from a single piece of material and incorporate a sliding handle that is received within an envelope formed in the central partition of the carton and is movable from a retracted position within the carton to an extended position projecting above the top of the carton.
    Type: Grant
    Filed: July 26, 1974
    Date of Patent: February 24, 1976
    Assignee: Domtar Limited
    Inventor: Cecil Alan Rowley
  • Patent number: 3934805
    Abstract: A combination appliance base and carton bottom is disclosed. The base includes a top panel and a bottom panel with a reinforcement therebetween. The reinforcement includes a pair of beam members one on each side of the base and a reinforcing filler in the central portion. The beam members and reinforcing filler are formed of substantially non-expanded and expanded honeycomb material, respectively.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: January 27, 1976
    Assignee: Domtar Limited
    Inventor: George Elaschuk