CA2459444C - Natural tapered house log milling process - Google Patents
Natural tapered house log milling process Download PDFInfo
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- CA2459444C CA2459444C CA002459444A CA2459444A CA2459444C CA 2459444 C CA2459444 C CA 2459444C CA 002459444 A CA002459444 A CA 002459444A CA 2459444 A CA2459444 A CA 2459444A CA 2459444 C CA2459444 C CA 2459444C
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- log
- logs
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/70—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood
- E04B2/701—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with integrated supporting and obturation function
- E04B2/702—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with integrated supporting and obturation function with longitudinal horizontal elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Bearing And Curtain Walls (AREA)
- Artificial Fish Reefs (AREA)
Abstract
A process to enable the manufacture of tapered house building logs of various diameters, which would be used in hand-crafted round log construction, in both residential and commercial applications. A milling process would remove wood to create the lateral notches, also known as grooves or copes, on the underside of each wall log, while maintaining the natural taper of each whole log used. The convex curvature of the top of each log is milled to match the concave curvature on the bottom of the log sitting directly above it, using a common curvature for specified diameters; in the process of planing the top and the underside of each log, the same degree of taper is achieved.
Whole, round trees are utilized and the natural taper of each log is always maintained.
Whole, round trees are utilized and the natural taper of each log is always maintained.
Description
NATURAL TAPERED HOUSE LOG MILLING PROCESS
FIELD OF THE INVENTION
This invention pertains to the construction of log walls and utilizes natural tapered whole logs which are fit together and laid horizontally on top of each other.
Traditionally, this type of wall construction has always been done by hand, using a chainsaw.
A lateral notch, also known as a groove or cope, is cut with a chainsaw from the underside or belly of each log, and runs the full length of each wall log. This is an extremely heavy, labour intensive and repetitive task. This invention will eliminate the time-consuming hard labour involved, but will still result in the hand-crafted look of tapered log walls.
The art and craft of building with natural logs continues to gain appeal, and removing this labour intensive aspect of the construction will allow time for log builders to focus more on innovative and creative hand-crafted corner notches and other details unique to their own style of building.
DESCRIPTION OF THE PRIOR ART
There are various means by which horizontally stacked logs or milled timbers are notched or joined together. With conventional "milled" or "machine-cut" house logs, there is a huge amount of waste wood created. D-shaped logs and double tongue and groove style logs are machined out of dimensional timbers and then profiled to resemble "real logs". Lathed (round) logs are all milled to exactly the same diameter; the tip size of the tree determines the final size of the log. An enormous amount of waste wood is generated as the log is lathed down to it's smallest dimension, often being as little as 6 inches in diameter. Up to 40% of the wood becomes waste.
Conventional milling systems are also limited in the length of logs that can be used. An unfortunate consequence is the practice of "end-butting" timbers within a wall;
ie: 2 - 20 ft. pieces of log are butted end to end to create 1 - 40 ft.
length. This negatively affects the building both aesthetically and structurally and can cause air leak problems.
United States Patent No. 4,312,161 to Goldade teaches the shaping of elongate cylindrical structural members for their inter-fitting in the construction of walls or similar structures. This provides an example of machine profiled timbers that have been cut from whole logs.
United States Patent No. 4,903,447 to McDade teaches a variation on machine profiled logs which utilizes a double tongue and groove type of joinery and creates an exterior wall profile that resembles shiplap siding.
United States Patent No. 4,510,724 to Magnuson teaches timber construction which incorporates the natural taper of the timbers and uses a uniform notching system for corner joinery. However, this system again relies on each timber being profiled to exact matching dimensions, again generating substantial amounts of wood waste and increased costs. There are machines currently utilizing curved planer heads to peel logs. As well, hydraulic equipment is being widely used in the wood manufacturing sector to position logs, align them on a determined plane, rotate them and mill them as required.
Laser levellers are used in conjunction to ensure accuracy.
SUMMARY OF THE INVENTION
In a first aspect, the present invention provides a process for milling whole natural logs for log wall construction from selected logs of similar taper. The process commences with milling a convex curvature on a longitudinal surface of each of the selected logs. The convex curvature has a curvature determined in accordance with a diameter range of the selected logs. An opposite surface of each of the selected logs is then planed to provide a curvature identical to a curvature of the top surface, and to provide an identical degree of taper amongst the selected logs. Finally, a concave groove is cut in the opposite surface of each log to form a lengthwise lateral notch in the upper surface to identically match the curvature of the convex curvature.
In a further aspect, the present invention provides a process for milling whole natural logs for log wall construction. Logs of similar taper are selected.
One of the selected logs is then positioned for a first phase of milling such that an upper surface thereof is in a horizontal plane. In the first phase of milling, a convex curvature is milled in the upper surface of the log having a curvature determined in accordance with a diameter range of the selected logs. In a planing process, the opposite surface is planed to provide a curvature identical to the curvature of the top surface. In a second phase of milling, a concave groove is cut on the opposite surface to form a lengthwise lateral notch in the opposite surface. The concave groove matches the curvature of the upper surface.
The steps of positioning, milling and planing are then repeated for each of the selected logs.
FIELD OF THE INVENTION
This invention pertains to the construction of log walls and utilizes natural tapered whole logs which are fit together and laid horizontally on top of each other.
Traditionally, this type of wall construction has always been done by hand, using a chainsaw.
A lateral notch, also known as a groove or cope, is cut with a chainsaw from the underside or belly of each log, and runs the full length of each wall log. This is an extremely heavy, labour intensive and repetitive task. This invention will eliminate the time-consuming hard labour involved, but will still result in the hand-crafted look of tapered log walls.
The art and craft of building with natural logs continues to gain appeal, and removing this labour intensive aspect of the construction will allow time for log builders to focus more on innovative and creative hand-crafted corner notches and other details unique to their own style of building.
DESCRIPTION OF THE PRIOR ART
There are various means by which horizontally stacked logs or milled timbers are notched or joined together. With conventional "milled" or "machine-cut" house logs, there is a huge amount of waste wood created. D-shaped logs and double tongue and groove style logs are machined out of dimensional timbers and then profiled to resemble "real logs". Lathed (round) logs are all milled to exactly the same diameter; the tip size of the tree determines the final size of the log. An enormous amount of waste wood is generated as the log is lathed down to it's smallest dimension, often being as little as 6 inches in diameter. Up to 40% of the wood becomes waste.
Conventional milling systems are also limited in the length of logs that can be used. An unfortunate consequence is the practice of "end-butting" timbers within a wall;
ie: 2 - 20 ft. pieces of log are butted end to end to create 1 - 40 ft.
length. This negatively affects the building both aesthetically and structurally and can cause air leak problems.
United States Patent No. 4,312,161 to Goldade teaches the shaping of elongate cylindrical structural members for their inter-fitting in the construction of walls or similar structures. This provides an example of machine profiled timbers that have been cut from whole logs.
United States Patent No. 4,903,447 to McDade teaches a variation on machine profiled logs which utilizes a double tongue and groove type of joinery and creates an exterior wall profile that resembles shiplap siding.
United States Patent No. 4,510,724 to Magnuson teaches timber construction which incorporates the natural taper of the timbers and uses a uniform notching system for corner joinery. However, this system again relies on each timber being profiled to exact matching dimensions, again generating substantial amounts of wood waste and increased costs. There are machines currently utilizing curved planer heads to peel logs. As well, hydraulic equipment is being widely used in the wood manufacturing sector to position logs, align them on a determined plane, rotate them and mill them as required.
Laser levellers are used in conjunction to ensure accuracy.
SUMMARY OF THE INVENTION
In a first aspect, the present invention provides a process for milling whole natural logs for log wall construction from selected logs of similar taper. The process commences with milling a convex curvature on a longitudinal surface of each of the selected logs. The convex curvature has a curvature determined in accordance with a diameter range of the selected logs. An opposite surface of each of the selected logs is then planed to provide a curvature identical to a curvature of the top surface, and to provide an identical degree of taper amongst the selected logs. Finally, a concave groove is cut in the opposite surface of each log to form a lengthwise lateral notch in the upper surface to identically match the curvature of the convex curvature.
In a further aspect, the present invention provides a process for milling whole natural logs for log wall construction. Logs of similar taper are selected.
One of the selected logs is then positioned for a first phase of milling such that an upper surface thereof is in a horizontal plane. In the first phase of milling, a convex curvature is milled in the upper surface of the log having a curvature determined in accordance with a diameter range of the selected logs. In a planing process, the opposite surface is planed to provide a curvature identical to the curvature of the top surface. In a second phase of milling, a concave groove is cut on the opposite surface to form a lengthwise lateral notch in the opposite surface. The concave groove matches the curvature of the upper surface.
The steps of positioning, milling and planing are then repeated for each of the selected logs.
In yet another aspect, the present invention provides a method for building a log wall construction, using logs milled according to the above processes. The method begins by laying a first round of logs such that a butt end of each log abuts a tip end of an adjacent log, and the convex curvature of the opposite surface of each log forms a top of the first round. A second round of logs is then stacked on the first round such that each butt end of the second round of logs alternates with a tip end of the first round, and the concave grooves of the logs of the second round face downwards and coincide with the convex curvatures of the first round. Subsequent first and second rounds are laid to form the log wall construction, and such that every second round provides a level wall height.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a section of log wall according to the present invention;
FIG. 2 is an end view of a log wall according to the present invention; and FIG. 3 is an enlarged end view of a log wall according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view of a section of log wall illustrating the natural taper of the logs as they lay, alternating a butt 11 (largest diameter of a log) with a tip 12 (smallest diameter of a log) and achieving level every 2 rounds (a "round" is a single layer of logs around the complete perimeter of a building).
FIG. 2 is an end view of a log wall illustrating the alternating butts 11 and tips 12 of logs and indicating common curvature 13, matching the milled convex surface of the top of each log to the milled concave surface on the underside of the log above it.
FIG. 3 is an enlarged end view of a log wall illustrating the use of a common curvature 13 on various diameters of logs resulting in the exact matching of convex to concave surfaces, joining log to log and illustrating the amount of wood removal in the process: from the underside of a log 14 and from the top side of a log 15.
This process utilizes a machine to create the lateral notch, also known as a groove or cope, on the underside of a house building log and to mill a matching convex surface on the top of each log, creating walls that maintain the natural taper of each whole log used (refer to FIG. 1). Referring now to FIG. 2, 13 the convex curvature of the top of each log will be milled to match the concave curvature on the bottom of the log sitting directly above it, using a common curvature 13 for specified diameters. A 16 inch diameter curvature is defined as being equal to any portion of the perimeter of a 16 inch circle.
Similarly, a 10 inch diameter curvature equals any portion of the perimeter of a 10 inch circle; refer to FIG. 3 13. The key factor in this process is to use logs of similar taper and mill them to exactly the same degree of taper. This is accomplished by positioning the log that is to be milled so that the top surface is on a horizontal plane. The concave groove is then cut into that surface. The log is then mechanically rotated 180 degrees so the opposite surface of the log is on top. Once again, hydraulic lifters and laser levellers position the log so that the top surface is essentially on a horizontal plane, with the log held in position so that the planing process results in creating the identical degree of taper in every log. A
matching convex curvature is then milled on this surface. By using the same curvature throughout, no matter what diameter of log is used, level wall height is achieved every 2 rounds (refer to FIG. 1 ); this is contingent upon logs being stacked so that, at each end of the wall being built, a butt 11 (or largest diameter of a log) alternates with a tip 12 (or smallest diameter of a log); refer to FIG. 1. A "round" is a single layer of logs around the complete perimeter of a building In the process of milling and matching concave to convex surfaces, an extremely small amount of waste wood 14 and 15, is generated.
Trees grown in the same area have similar taper. Ideal house logs have 1 inch of taper in every 10 feet of length. If the taper is greater than that, the machine can still be used with the same results. Cutting blades with different curvatures would be used for different diameters of logs, however, with this concept, the same curvature blade and the same degree of taper in the logs used must be maintained for any one complete building.
Logs ranging from 5 to 10 inches in diameter would use a 10" curvature blade.
Logs ranging from 10 to 16 inches in diameter would use a 16 inch curvature blade.
Logs ranging form 16 to 24 inches would use a 24 inch curvature blade.
A natural tapered house log milling machine would be designed so that the machine head would move down the length of the log, as opposed to the equipment being stationary and the log being turned and moved. This would enable logs of up to 55 feet in length to be milled.
There is a growing world-wide shortage of timber, thus, the reduced amount of wood that is being harvested must be used to maximum advantage, achieving the highest value-added possible. This invention allows for the full utilization of each naturally tapered log used in wall construction. Essentially, only the bark and a very small portion of log are unused, and the bark can be sold as landscape mulch.
COMPARATIVE TABLE SHOWING WOOD CONSUMPTION BASED
ON TYPE AND SIZE OF LOGS USED
Number of lobs reguired to gain 120 inches (or 10 ft) in wall height:
6" double tongue and 20 logs high maximum obtainable groove length is 24 feet 8" double tongue and 15 logs high maximum obtainable groove length is 24 feet 10" round lathed logs12 logs high 13" average diameter logs must be used and 30-40% of the wood becomes waste;
maximum obtainable length is 28 ft.
10" tip, 16" butt 9.2 logs high full length trees trees (natural can be used ~, tapered logs) - (up to 55 ft. long) 13" average resulting in diameter maximum height gain per round There are also substantial savings in the cost of labour due to increased productivity when using a tapered log milling machine to create lateral grooves. It is estimated that this process will produce 6-8 times more lineal footage of lateral grooves per man day than a log builder using a chainsaw. This would allow increased time for the more individualized and creative aspects of craftsmanship involved in the log construction industry. As well, it is anticipated that the widespread use of this process would result in reduced incidence of back-related injuries now common in this industry, since the repetitive and prolonged use of the chainsaw to create lateral grooves would be eliminated.
Increased thermal mass of log buildings and higher R-values of log walls are achieved, due to the larger diameter of logs using the natural tapered milling method.
Greater flexibility in design is also possible due to the long lengths of logs that can be used; no end-butting is necessary. Milled natural tapered logs would have the appearance and appeal of hand-crafted or hand-scribed joinery.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a section of log wall according to the present invention;
FIG. 2 is an end view of a log wall according to the present invention; and FIG. 3 is an enlarged end view of a log wall according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view of a section of log wall illustrating the natural taper of the logs as they lay, alternating a butt 11 (largest diameter of a log) with a tip 12 (smallest diameter of a log) and achieving level every 2 rounds (a "round" is a single layer of logs around the complete perimeter of a building).
FIG. 2 is an end view of a log wall illustrating the alternating butts 11 and tips 12 of logs and indicating common curvature 13, matching the milled convex surface of the top of each log to the milled concave surface on the underside of the log above it.
FIG. 3 is an enlarged end view of a log wall illustrating the use of a common curvature 13 on various diameters of logs resulting in the exact matching of convex to concave surfaces, joining log to log and illustrating the amount of wood removal in the process: from the underside of a log 14 and from the top side of a log 15.
This process utilizes a machine to create the lateral notch, also known as a groove or cope, on the underside of a house building log and to mill a matching convex surface on the top of each log, creating walls that maintain the natural taper of each whole log used (refer to FIG. 1). Referring now to FIG. 2, 13 the convex curvature of the top of each log will be milled to match the concave curvature on the bottom of the log sitting directly above it, using a common curvature 13 for specified diameters. A 16 inch diameter curvature is defined as being equal to any portion of the perimeter of a 16 inch circle.
Similarly, a 10 inch diameter curvature equals any portion of the perimeter of a 10 inch circle; refer to FIG. 3 13. The key factor in this process is to use logs of similar taper and mill them to exactly the same degree of taper. This is accomplished by positioning the log that is to be milled so that the top surface is on a horizontal plane. The concave groove is then cut into that surface. The log is then mechanically rotated 180 degrees so the opposite surface of the log is on top. Once again, hydraulic lifters and laser levellers position the log so that the top surface is essentially on a horizontal plane, with the log held in position so that the planing process results in creating the identical degree of taper in every log. A
matching convex curvature is then milled on this surface. By using the same curvature throughout, no matter what diameter of log is used, level wall height is achieved every 2 rounds (refer to FIG. 1 ); this is contingent upon logs being stacked so that, at each end of the wall being built, a butt 11 (or largest diameter of a log) alternates with a tip 12 (or smallest diameter of a log); refer to FIG. 1. A "round" is a single layer of logs around the complete perimeter of a building In the process of milling and matching concave to convex surfaces, an extremely small amount of waste wood 14 and 15, is generated.
Trees grown in the same area have similar taper. Ideal house logs have 1 inch of taper in every 10 feet of length. If the taper is greater than that, the machine can still be used with the same results. Cutting blades with different curvatures would be used for different diameters of logs, however, with this concept, the same curvature blade and the same degree of taper in the logs used must be maintained for any one complete building.
Logs ranging from 5 to 10 inches in diameter would use a 10" curvature blade.
Logs ranging from 10 to 16 inches in diameter would use a 16 inch curvature blade.
Logs ranging form 16 to 24 inches would use a 24 inch curvature blade.
A natural tapered house log milling machine would be designed so that the machine head would move down the length of the log, as opposed to the equipment being stationary and the log being turned and moved. This would enable logs of up to 55 feet in length to be milled.
There is a growing world-wide shortage of timber, thus, the reduced amount of wood that is being harvested must be used to maximum advantage, achieving the highest value-added possible. This invention allows for the full utilization of each naturally tapered log used in wall construction. Essentially, only the bark and a very small portion of log are unused, and the bark can be sold as landscape mulch.
COMPARATIVE TABLE SHOWING WOOD CONSUMPTION BASED
ON TYPE AND SIZE OF LOGS USED
Number of lobs reguired to gain 120 inches (or 10 ft) in wall height:
6" double tongue and 20 logs high maximum obtainable groove length is 24 feet 8" double tongue and 15 logs high maximum obtainable groove length is 24 feet 10" round lathed logs12 logs high 13" average diameter logs must be used and 30-40% of the wood becomes waste;
maximum obtainable length is 28 ft.
10" tip, 16" butt 9.2 logs high full length trees trees (natural can be used ~, tapered logs) - (up to 55 ft. long) 13" average resulting in diameter maximum height gain per round There are also substantial savings in the cost of labour due to increased productivity when using a tapered log milling machine to create lateral grooves. It is estimated that this process will produce 6-8 times more lineal footage of lateral grooves per man day than a log builder using a chainsaw. This would allow increased time for the more individualized and creative aspects of craftsmanship involved in the log construction industry. As well, it is anticipated that the widespread use of this process would result in reduced incidence of back-related injuries now common in this industry, since the repetitive and prolonged use of the chainsaw to create lateral grooves would be eliminated.
Increased thermal mass of log buildings and higher R-values of log walls are achieved, due to the larger diameter of logs using the natural tapered milling method.
Greater flexibility in design is also possible due to the long lengths of logs that can be used; no end-butting is necessary. Milled natural tapered logs would have the appearance and appeal of hand-crafted or hand-scribed joinery.
Claims (8)
1. A process for milling whole natural logs for log wall construction, the process comprising steps of:
selecting logs of similar taper;
positioning one of the selected logs for a first phase of milling such that a top surface thereof is in a horizontal plane;
milling a convex curvature in the top surface of the log having a curvature determined in accordance with a diameter range of the selected logs;
planing an opposite surface to provide a curvature identical to the curvature of the upper surface;
cutting a concave groove on the opposite surface to form a lengthwise lateral notch in the opposite surface, the concave groove matching the curvature of the upper surface;
and repeating the above steps for each selected log.
selecting logs of similar taper;
positioning one of the selected logs for a first phase of milling such that a top surface thereof is in a horizontal plane;
milling a convex curvature in the top surface of the log having a curvature determined in accordance with a diameter range of the selected logs;
planing an opposite surface to provide a curvature identical to the curvature of the upper surface;
cutting a concave groove on the opposite surface to form a lengthwise lateral notch in the opposite surface, the concave groove matching the curvature of the upper surface;
and repeating the above steps for each selected log.
2. The process of claim 1, further including steps of mechanically rotating the log through 180° to expose the opposite surface and positioning the opposite surface in an essentially horizontal plane, prior to the planing process.
3. The process of claim 1 or 2, wherein the selected logs have a maximum butt diameter approximately 15 cm (6 inches) greater than the minimum tip diameter.
4. The process of claim 3, wherein for selected logs the determined curvature is approximately equal to the maximum butt diameter.
5. The process of claim 1 or 2, wherein the determined curvature is about 25 cm (10 inches) when the diameter range of the logs is about 13 - 25 cm (5 - 10 inches).
6. The process of claim 1 or 2, wherein the determined curvature is about 41 cm (16 inches) when the diameter range of the logs is about 25 - 41 cm (10 - 16 inches).
7. The process of claim 1 or 2, wherein the determined curvature is about 61 cm (24 inches) when the diameter range of the logs is about 41 - 61 cm (16 - 24 inches).
8. A method for building a log wall construction, using logs milled according to the process of any one of claims 1 to 7, comprising:
(a) laying a first round of logs such that a butt end of each log abuts a tip end of an adjacent log, and the convex curvature of the opposite surface of each log forms a top of the first round;
(b) stacking a second round of logs on the first round such that each butt end of the second round of logs alternates with a tip end of the first round, and the concave grooves of the logs of the second round face downwards and coincide with the convex curvatures of the first round; and (c) repeating steps (a) and (b) to form the log wall construction such that every second round provides a level wall height.
(a) laying a first round of logs such that a butt end of each log abuts a tip end of an adjacent log, and the convex curvature of the opposite surface of each log forms a top of the first round;
(b) stacking a second round of logs on the first round such that each butt end of the second round of logs alternates with a tip end of the first round, and the concave grooves of the logs of the second round face downwards and coincide with the convex curvatures of the first round; and (c) repeating steps (a) and (b) to form the log wall construction such that every second round provides a level wall height.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2001/001314 WO2003023158A1 (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2459444A1 CA2459444A1 (en) | 2003-03-20 |
CA2459444C true CA2459444C (en) | 2007-01-23 |
Family
ID=4143163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002459444A Expired - Fee Related CA2459444C (en) | 2001-09-13 | 2001-09-13 | Natural tapered house log milling process |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040237457A1 (en) |
EP (2) | EP1444409B1 (en) |
JP (1) | JP2005501990A (en) |
AT (1) | ATE298021T1 (en) |
CA (1) | CA2459444C (en) |
DE (1) | DE60111579T2 (en) |
WO (1) | WO2003023158A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2472614C2 (en) * | 2010-12-14 | 2013-01-20 | Валерий Петрович Чулков | Making log house using log machining |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE548733A (en) * | ||||
US2525659A (en) * | 1948-10-12 | 1950-10-10 | Building Logs Inc | Building log |
CA918882A (en) * | 1970-02-24 | 1973-01-16 | Maskuta Properties Ltd. | Log of natural taper for prefabricated structures |
US3863409A (en) * | 1972-12-11 | 1975-02-04 | Charles Raymond Fell | Log cabin structure |
US3951187A (en) * | 1975-04-24 | 1976-04-20 | Finis Lavell Chisum | Machine to prepare logs for log houses |
US4067368A (en) * | 1976-04-20 | 1978-01-10 | Beecroft William K | Cabin log shaper |
US4147000A (en) * | 1977-10-31 | 1979-04-03 | Lewandowski Robert E | Insulated log building structure |
JPS5496214A (en) * | 1978-01-14 | 1979-07-30 | Kaneto Saito Mokuzai Kk | Method of building house of logs |
US4167961A (en) * | 1978-04-13 | 1979-09-18 | New England Log Homes, Inc. | Planer and groover |
CA1096130A (en) | 1979-02-28 | 1981-02-24 | Sebastian M. Goldade | Log-joint system |
US4510724A (en) | 1981-10-13 | 1985-04-16 | Karl Magnuson | Building structure |
JPS611748A (en) * | 1984-06-12 | 1986-01-07 | 秋田 恭志 | Constitution of building by connecting log materials |
US4903447A (en) * | 1988-05-16 | 1990-02-27 | Mcdade Paul R | Log profile and log structure incorporating said log profile |
US4951435A (en) * | 1989-01-17 | 1990-08-28 | Lloyd Beckedorf | Log building construction |
JPH05141022A (en) * | 1991-11-21 | 1993-06-08 | Yoshinori Okura | Construction for wall body for structure |
US5718091A (en) * | 1996-03-25 | 1998-02-17 | Sellers; Jonathan S. | Construction of a log cabin |
US6023895A (en) * | 1997-06-24 | 2000-02-15 | Anderson; Theodore W. | Log interface and log walls and buildings constructed therefrom |
US5878800A (en) * | 1998-01-23 | 1999-03-09 | Young; Ralph C. | Rectangular opening box cutting apparatus |
US6070376A (en) * | 1998-09-03 | 2000-06-06 | Asper; William D. | Interfitting wooden and log walls |
US6564526B2 (en) * | 2000-03-02 | 2003-05-20 | Accelerated Log Building, Inc. | Accelerated log building method |
CA2299841C (en) * | 2000-03-02 | 2005-04-19 | Robert W. Chambers | Accelerated log building method |
-
2001
- 2001-09-13 CA CA002459444A patent/CA2459444C/en not_active Expired - Fee Related
- 2001-09-13 WO PCT/CA2001/001314 patent/WO2003023158A1/en active IP Right Grant
- 2001-09-13 DE DE60111579T patent/DE60111579T2/en not_active Expired - Fee Related
- 2001-09-13 EP EP01971566A patent/EP1444409B1/en not_active Expired - Lifetime
- 2001-09-13 JP JP2003527209A patent/JP2005501990A/en active Pending
- 2001-09-13 EP EP05102362A patent/EP1566500A1/en not_active Withdrawn
- 2001-09-13 US US10/488,873 patent/US20040237457A1/en not_active Abandoned
- 2001-09-13 AT AT01971566T patent/ATE298021T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2003023158A1 (en) | 2003-03-20 |
JP2005501990A (en) | 2005-01-20 |
US20040237457A1 (en) | 2004-12-02 |
EP1444409B1 (en) | 2005-06-15 |
DE60111579T2 (en) | 2006-05-04 |
EP1566500A1 (en) | 2005-08-24 |
EP1444409A1 (en) | 2004-08-11 |
DE60111579D1 (en) | 2005-07-21 |
ATE298021T1 (en) | 2005-07-15 |
CA2459444A1 (en) | 2003-03-20 |
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