Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7111708 | Knock down sawhorse A knock down sawhorse includes a rail, a pair of legs and a spreader having notches and slots for enabling assembly and disassembly thereof along with holes disposed in each of the rails, legs and spreaders for enabling alignment of the holes with one another upon s... | 09/26/2006 |
| 6971477 | Walkboard ledger for scaffolding A scaffolding (10) for elevating a worker (not shown) above a floor or ground surface is disclosed. The scaffolding (10) broadly includes a pair of frames (12) and (14), cross bracing (16) coupling the frames (12,14) togethe... | 12/06/2005 |
| 6298946 | Height and working width adjustable sawhorse A sawhorse comprises a base assembly including a first base member and a second base member. The first base member has a first top end, and the second base member has a second top end. The second base member is pivotally connected at the second top end to... | 10/09/2001 |
| 6123173 | Extendable sawhorse top rail A sawhorse extender attachment adapted to be affixed to the cross beam member of a conventional sawhorse that allows the effective length of the sawhorse to be adjusted. The attachment device comprises a base member having a dove-tail groove extending the... | 09/26/2000 |
| 5904225 | Extendeable sawhorse top rail A sawhorse extender attachment adapted to be affixed to the cross beam member of a conventional sawhorse that allows the effective length of the sawhorse to be adjusted. The attachment device comprises at least one containment base member having a groove ... | 05/18/1999 |
| 5762444 | A-frame barricade An A-frame barricade has the capability of being adjusted to a desired length. The barricade includes a pair of A-frame leg support members and a generally elongate beam assembly which connects the leg support members. The beam assembly is comprises two b... | 06/09/1998 |
| 4903796 | Reusable quickly assembled and quickly knocked down work supports, used singly and with others for many purposes and conveniently carried and stored Work supports, which are quickly assembled and quickly knocked down, are used singly and with others, with and without accessories, for many purposes. When not in use, these work supports are conveniently carried and stored. Each work support has a pair o... | 02/27/1990 |
| 4804064 | Adjustable, collapsible sawhorse A lightweight sawhorse which may be easily collapsed in three transversely aligned directions to form a compact, portable package and thereby facilitate the transport and storage thereof. The dimensions of the sawhorse may also be selectively adjusted to ... | 02/14/1989 |
| 4371057 | Telescopic scaffold A telescopic scaffold comprising opposed pairs of elongated support legs each received in adjustable sleeve members securable at a predetermined location therealong. Arresting means is provided to interlock each sleeve member with its associated leg at a ... | 02/01/1983 |
| 3934676 | Scaffold structure A scaffold structure comprising a pair of leg frames and a support frame. The support frame includes a pair of posts vertically slidably received in the leg frames and means for locking the same thereto at selected elevations. The support frame includes t... | 01/27/1976 |
