Back to results
US 5,443,641 AGranted
Wood-treating device
AssigneeNational Wood Treating Company
InventorsGuy G. Helsing, Jon Atherton
Life of this patent
Estimating the term…
Abstract
A docking sleeve is provided for insertion into a bore in the side of a work-piece. A sealed chemical-holding cylinder is passed through the docking sleeve into the bore and an actuator is screwed into the docking sleeve to pierce a seal of a the cylinder so that chemicals contained therein can vaporize and treat the inside of the work-piece.
Claims6
A wood-treating device comprising:
- a docking sleeve having an aperture extending therethrough, the docking sleeve being adapted to be received within a bore having a surrounding wall in a work-piece, and comprising an outer portion operable to bear against and produce a substantially fluid-tight seal against the wall of the bore and external projecting barbs;
- a container holding wood-treating materials dimensioned to extend through the aperture, the container having an opening adjacent the docking sleeve;
- a frangible seal covering the opening;
- and
- an actuator mounted for shifting in the docking sleeve toward the seal operable to break the seal, the actuator and docking sleeve comprising co-acting sealing coupling means operable to provide a fluid-tight seal therebetween.
2 more elements
A wood-treating device comprising
- a docking sleeve having a bottom portion and sidewall defining an open central region in the sleeve, the sidewall having an internally threaded section and externally projecting barbs, and the bottom portion having a central aperture of a pre-selected size and a fluid passage extending therethrough,
- a container having an opening at one end, the container having a cross-sectional configuration over a major portion thereof sized to pass through the aperture and having an enlarged head portion adjacent said one end preventing passage through the aperture, the head portion having a fluid passage extending therethrough positioned to align with the fluid passage of the docking sleeve,
- aligning members on the docking sleeve and container which engage to position the passages of the docking sleeve and container in alignment,
- a frangible cover sealing the opening of the container to hold treating materials therein,
- an actuator having an externally threaded body portion sized to screw into the threaded section of the docking sleeve, and
- a piercing projection on the actuator positioned to break the frangible cover on the container when the actuator is screwed into the docking sleeve.
3 more elements
A wood-treating device for chemical treatment of a wooden work-piece having a pre-drilled bore formed therein, comprising:
- a docking sleeve adapted to be received in the bore having an aperture extending therethrough and an outer portion operable to bear against and produce a substantially fluid-tight seal against the wall of the bore;
- means for attaching pressure testing equipment to the docking sleeve for monitoring the pressure in the bore;
- a container for holding treating materials dimensioned to extend through the aperture, the container having an opening adjacent the docking sleeve;
- a frangible seal covering the opening;
- and
- an actuator mounted for shifting in the docking sleeve toward the seal operable to break the seal.
3 more elements
Dependencies are inferred from the claim text.