Patent US4488389A successfully refreshed from Google Patents.
US4488389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securing means for log construction
Assignee: Individual
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Filing: 1982-12-20
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Granted: 1984-12-18
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Expires: 2002-12-20
Abstract
Abstract A building wall comprising the plurality of stacked logs with flat top and bottom surfaces into each of which is cut a deep slot. A metal bar is received in the aligned slots of vertically adjacent logs and pointed projections penetrate into the wood of the logs to prevent separation. In one embodiment, the projections are spaced clusters of downwardly extending nails which prevent separation of logs placed end to end and upwardly extending nails which prevent shear movement of adjacent logs. In another embodiment, the bar has sharp projections which are punched from the surface thereof to be received in the aligned slots of adjacent logs and penetrate a side wall of said slot.
Inventors
- 👤 Johann H. Farmont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:01
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/70; E04B2/701; E04B2/702; Y; Y10; Y10S; Y10S403/00; Y10S403/15; Y10S52/00; Y10S52/06; Y10T; Y10T403/00; Y10T403/49; Y10T403/4974
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
159 words
A building wall comprising: a plurality of stacked logs; each of said logs having a pair of side surfaces and generally planar top and bottom surfaces; a slot cut into each of said planar surfaces to extend along the length thereof; and a log joiner securing vertically adjacent logs together comprising: a metal plate; a first cluster of pointed projections depending from said metal plate over a first area adjacent one end thereof penetrating a first lower log; a second cluster of pointed projections extending upward from said metal plate over a second area displaced from said first area penetrating an upper log supported on said lower log; a first vertical bar extending upward from said plate longitudinally across said first area received in the slot in the bottom of said upper log; and a second vertical bar depending from said plate longitudinally across said second area received in the slot in the top of said first lower log.
Claim 2
Dependent Claim
159 words
A building wall comprising: a plurality of stacked logs; each of said logs having a pair of side surfaces and generally planar top and bottom surfaces; a slot cut into each of said planar surfaces to extend along the length thereof; and a log joiner securing vertically adjacent logs together comprising: a metal plate; a first cluster of pointed projections depending from said metal plate over a first area adjacent one end thereof penetrating a first lower log; a second cluster of pointed projections extending upward from said metal plate over a second area displaced from said first area penetrating an upper log supported on said lower log; a first vertical bar extending upward from said plate longitudinally across said first area received in the slot in the bottom of said upper log; and a second vertical bar depending from said plate longitudinally across said second area received in the slot in the top of said first lower log.
Claim 3
Dependent Claim
54 words
The building wall defined by claim 1 including: a third cluster of pointed projections depending from said metal plate over a third area adjacent the other end thereof; and a third vertical bar extending upward from said plate longitudinally across said third area received in the slot in the top of a lower log.
Claim 4
Dependent Claim
36 words
The building wall defined by claim 2 including: a second lower log joined end to end with said first lower log; said third cluster of pointed projections penetrating the upper surface of said second lower log.
Claim 5
Dependent Claim
84 words
The building wall defined by claim 3 wherein: said second vertical bar is received in aligned slots in the tops of said first and second lower logs; and including: first and second arrays of toothed projections protruding from said second vertical bar on opposite sides of the joint between said first and second lower logs; said first and second arrays being directed toward each other to engage the sides of said aligned slots and grip said first and second lower logs against separation thereof.
Claim 6
Dependent Claim
34 words
The building wall defined by claim 4 including: third and fourth arrays of toothed projections protruding from said first and third vertical bars, respectively; said third and fourth arrays being directed toward each other.
Claim 7
Dependent Claim
139 words
A building wall comprising: a plurality of stacked logs; including a pair of spliced logs joined end to end; each of said logs having a pair of side surfaces and generally planar top and bottom surfaces; a slot cut into each of said planar surfaces to extend along the length thereof; and a longitudinal shear resisting connector member securing vertically adjacent logs together comprising; a metal bar received in longitudinally aligned slots of said spliced logs and the vertically aligned slot of an adjacent stacked log; and means forming a spaced pair of arrays of toothed projections in a side of said metal bar on opposite sides of the joint between said spliced logs; said arrays being directed toward each other to engage the sides of said longitudinally and vertically aligned slots to grip said logs against longitudinal shear.
Claim 8
Dependent Claim
139 words
A building wall comprising: a plurality of stacked logs; including a pair of spliced logs joined end to end; each of said logs having a pair of side surfaces and generally planar top and bottom surfaces; a slot cut into each of said planar surfaces to extend along the length thereof; and a longitudinal shear resisting connector member securing vertically adjacent logs together comprising; a metal bar received in longitudinally aligned slots of said spliced logs and the vertically aligned slot of an adjacent stacked log; and means forming a spaced pair of arrays of toothed projections in a side of said metal bar on opposite sides of the joint between said spliced logs; said arrays being directed toward each other to engage the sides of said longitudinally and vertically aligned slots to grip said logs against longitudinal shear.
Claim 9
Dependent Claim
62 words
The building wall defined by claim 6 wherein: there are two spaced pairs of arrays of toothed projections on said metal bar, one spaced pair being received in longitudinally aligned slots of spliced logs to grip the sides of same and the other spaced pair being received in the vertically aligned slot of said adjacent stacked log to grip the sides thereof.
Claim 10
Dependent Claim
152 words
A shear resisting log joiner for a building wall of a plurality of stacked logs having planar top and bottom surfaces with slots cut therein to extend along the length thereof; said connector member comprising: a metal bar received in longitudinally aligned slots of logs spliced end to end, and the vertically aligned slot of an adjacent stacked log; and means forming two spaced pairs of arrays of toothed projections in a side of said metal bar on opposite sides of the joint between said spliced logs; said arrays being directed toward each other to engage the sides of said longitudinally and vertically aligned slots to grip said logs against longitudinal shear; one spaced pair being received in longitudinally aligned slots of spliced logs to grip the sides of same and the other spaced pair being received in the vertically aligned slot of said adjacent stacked log to grip the sides thereof.
Claim 11
Dependent Claim
152 words
A shear resisting log joiner for a building wall of a plurality of stacked logs having planar top and bottom surfaces with slots cut therein to extend along the length thereof; said connector member comprising: a metal bar received in longitudinally aligned slots of logs spliced end to end, and the vertically aligned slot of an adjacent stacked log; and means forming two spaced pairs of arrays of toothed projections in a side of said metal bar on opposite sides of the joint between said spliced logs; said arrays being directed toward each other to engage the sides of said longitudinally and vertically aligned slots to grip said logs against longitudinal shear; one spaced pair being received in longitudinally aligned slots of spliced logs to grip the sides of same and the other spaced pair being received in the vertically aligned slot of said adjacent stacked log to grip the sides thereof.
References Cited (Backward Citations)
DE399326C
Cited
US1426232A
Cited
US2101378A
Cited
US2316819A
Cited
US3276797A
Cited
US3305252A
Cited
US3214802A
Cited
CH438658A
Cited
US3460301A
Cited
NL6715491A
Cited
US3841195A
Cited
US4299511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-18 | 1988-06-18 | 1988-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-18 | 1992-06-18 | 1992-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-18 | 1996-06-18 | 1996-12-18 | $7700.00 | Window Closed / Lapsed |