[특허]Strong, lightweight, folding wooden sawhorse

Wysong, Harvey

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특허 상세정보

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Strong, lightweight, folding wooden sawhorse

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B25H-001/04 B25H-001/06
출원번호	US-0757351 (2015-12-21)
등록번호	US-10155308 (2018-12-18)
발명자 / 주소	Wysong, Harvey
출원인 / 주소	Wysong, Harvey
대리인 / 주소	Law Office of Van R. Irion
인용정보	피인용 횟수 : 0 인용 특허 : 5

초록

A portable, lightweight, folding, wooden, sawhorse which utilizes precision wood joinery, wood screws, and glue to greatly increase vertical strength, lateral strength, and the rigidity of the sawhorse which significantly exceeds the vertical strength, lateral strength, and rigidity of larger, heavier sawhorses.

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1. A folding sawhorse comprising: a first half comprising a first leg and a second leg, said first leg and said second leg statically connected by a first upper stretcher and a first lower stretcher, wherein each of said legs and said stretchers include dados for joining said stretcher faces to said legs, and wherein said stretchers run substantially parallel to a removable top rail; a second half identical to said first half, said second half attached to said first half in an orientation rotated 180 degrees in respect to said first half, a first joint movably connecting said first half with said second half; a second joint in line with said first joint, movably connecting said first half with said second half; a notch at a top of each of said legs; a tensioning means between said first half and said second half; and wherein said removable top rail spans between said notches. 2. The sawhorse of claim 1 further comprising a tensioning means between said first half and said second half, wherein said tensioning means pulls said first lower stretcher and said second lower stretcher together while simultaneously causing said notches to tighten on said removable top rail. 3. The sawhorse of claim 1 wherein said dados are joined such that one surface of each of said stretcher faces is substantially flush with one edge of said legs. 4. The sawhorse of claim 1 wherein said legs and said stretchers consist of lumber no larger than 0.75 inches deep by 3.5 inches wide. 5. The sawhorse of claim 1 wherein said notch is oriented such that said top rail rests perpendicular to a long width of said legs. 6. The sawhorse of claim 1 wherein said first half and said second half are configured to have an angle of 45 degrees between said halves. 7. The sawhorse of claim 1 wherein said legs include an angled lower portion configured to be parallel to a resting surface. 8. The sawhorse of claim 1 wherein said legs and said stretchers are made of wood with substantially straight grain running along a long portion of said stretchers and said legs. 9. The sawhorse of claim 1 wherein said sawhorse weighs less than 16 pounds. 10. A strong, lightweight, folding sawhorse comprising: a first half comprising a first leg and a second leg, said first leg and said second leg being substantially identical, said first leg, and said second leg being substantially parallel, said first leg and said second leg statically connected by a first upper stretcher and a first lower stretcher, said first upper stretcher and said first lower stretcher being substantially identical, said first upper stretcher and said first lower stretcher being substantially parallel, wherein each of said first upper stretcher and said first lower stretcher are attached to both said first leg and said second leg at four points of attachment, and wherein each of said points of attachment include dados for joining said stretcher faces to said legs edge, and wherein said stretchers run substantially parallel to a removable top rail; a second half comprising a third leg and a fourth leg, said third leg and said fourth leg being substantially identical, said third leg and said fourth leg being substantially parallel, said third leg and said fourth leg statically connected by a second upper stretcher and a second lower stretcher, said second upper stretcher and said second lower stretcher being substantially identical, said second upper stretcher and said second lower stretcher being substantially parallel, wherein said second upper stretcher and said second lower stretcher are attached to both said third leg and said fourth leg at four points of attachment, and wherein each of said paints of attachment include dados for joining said stretcher faces to said legs edge, and wherein said stretchers run substantially parallel to said removable top rail; a first joint movably connecting said first half with said second half at said first leg and said third leg; a second joint in line with said first joint, movably connecting said first half with said second half at said second leg and said fourth leg; a notch at the top of each of said legs; a tensioning means between said first half and said second half; and wherein said removable top rail spans between said notches. 11. The sawhorse of claim 10 further comprising a tensioning means between said first half and said second half, wherein said tensioning means pulls said first lower stretcher and said second lower stretcher together while simultaneously causing said notches to tighten on said removable top rail. 12. The sawhorse of claim 10 wherein said tensioning means is a strap wrapped around said first lower stretcher and said second lower stretcher. 13. The sawhorse of claim 10 wherein said dados are joined such that one surface of each of said stretcher faces is substantially flush with one edge of said legs. 14. The sawhorse of claim 13 wherein said legs and said stretchers are made of 0.75 inch by 3.5 inch lumber. 15. The sawhorse of claim 10 wherein said four points of attachment are joined such that one surface of each of said stretcher faces is substantially flush with one edge of said legs. 16. The sawhorse of claim 10 wherein said legs and said stretchers are made of wood with substantially straight grain running along the long portion of said stretchers and said legs. 17. The sawhorse of claim 10 wherein said dados consist of cuts into said leg edges no deeper than 0.75 inches.

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Strong, lightweight, folding wooden sawhorse

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Strong, lightweight, folding wooden sawhorse

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