https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85831&pn=4,572,038 Multi-purpose tool Patentee: Charles H. Graham - Salt Lake City UT Granted:1986-02-25
Manufactured by Tekna-Tool, Inc. - North Salt Lake UT
Assigned to Tekna-Tool, Inc. - North Salt Lake UT

"... the multi-purpose tool of the present invention ... comprises a handle, a shaft having one end firmly attached to the handle and a distal end extending outwardly from the handle, a cylinder assembly which slidably engages the shaft, a plurality of working tips stored in the cylinder assembly, and a means for selecting and coupling any of the working tips to the distal end of the shaft." The tool holding "drum" is analogous to the ammunition holding cylinder in a "revolver" firearm. This patent and D288,168 were used for the TEKNA-TOOL multi-bit screwdriver and Dial-A-Tool hex driver set.
This is one of 85,126 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85836&pn=970,729 Spirit Level Patentee: George W. Lingle - Burlington WI Granted:1910-09-20


This is one of 85,126 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85835&pn=2,394,807 Combination pliers for twisting wire Patentee: Ralph C. Robinson - North Sacramento CA Granted:1946-02-12
Manufactured by Ralph C. Robinson Co. - North Sacramento CA

The focus of the patent is the structure of the wire gripping mechanism, where the wire is twisted while the handles remain stationary. Often referred to as "safety wire pliers." A "new old stock in original box" example is known. Advertised in appropriate industry trade journals, etc.
This is one of 85,126 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85816&pn=883,212 Spirit Level Patentee: George W. Lingle - Chicago, Cook County IL Granted:1908-03-31
Manufactured by The Lingle Mfg. Co. - Burlington WI

Clarence W Taylor - patent attorney. There is some confusion with US-883,642, another level issued the same day. Abstract: This invention relates to new and useful improvements in spirit levels, and has for its objects, first, to provide a liquid measuring instrument adapted to maintain the upper surface of the liquid in more than one plane at the time of reading; second, to facilitate a condition of rest of the upper surface of the liquid and increase the promptitude of the instrument in furnishing indications of the variations, if any, from the true level or the plumb line; third, to produce a one-glass, reversible spirit level to obviate thought or care which edge or end should be used on the work; and, forth, to provide one or more fixed reading bars in the liquid chamber. Claim: A spirit level comprising a ring and side plates arranged to constitute a liquid container, a liquid, and means extending to near the center of the container and cooperating with a transparent side thereof for holding' the upper surface of the liquid in more than one plane at the time of reading.
This is one of 85,126 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85834&pn=D288,168 Multiple-Tip Tool Patentee: Charles H. Graham - Salt Lake City UT Granted:1987-02-10
Manufactured by Tekna-Tool, Inc. - North Salt Lake UT
Assigned to Tekna-Tool, Inc. - North Salt Lake UT

External design details for the TEKNA-TOOL interchangeable tip screwdriver based on patent no. 4,572,038. The "specifications" include an extensive list of relevant prior patents: 438,150, 523,823, 1,000,900, 1,345,708, 1,816,812, 2,566,543, 2,629,661, 2,635,661, 2,714,409, 2,730,145, 2,749,953, 2,765,013, 3,006,395, 3,315,595, 3,683,984, 4,010,663, 4,227,430, 4,241,773, 4,273,173, 4,328,721, 4,372,362, 4,434,829, 4,449,559, 4,480,668 and 4,572,038.
This is one of 85,126 patents currently in the database at datamp.org

]]>