Datamp.org Patents http://www.datamp.org/ Recently added patents en-us US Patent: 1,023,533 http://www.datamp.org/patents/displayPatent.php?id=52725&pn=1,023,533 Pipe Wrench Patentees: Harry R. Sinclair - Worcester MA , Carl Ekman - Worcester MA Granted:1912-04-16
Assigned to Harry R. Sinclair - Worcester MA

A modification of Sinclair's July 12, 1904 (pat. no. 764,641) strap wrench. In this patent, the fixed end of the strap is held by a wedge in a tapered throat.
This is one of 52,314 patents currently in the database at datamp.org

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US Patent: 764,641 http://www.datamp.org/patents/displayPatent.php?id=52724&pn=764,641 Pipe Wrench Patentee: Harry R. Sinclair - Worcester MA Granted:1904-07-12
Manufactured by Warnock Mfg. Co. - Worcester MA

A strap wrench in which the "anchored" end of the strap slides through a slot in a cross member in the head, and is held in place by the pressure of the strap against the final portion of the strap. The design appears to correspond to the "WARNOCK SIMPLEX" strap wrench; patent no. 1,023,533 is a further evolution of the design.
This is one of 52,314 patents currently in the database at datamp.org

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US Patent: 765,583 http://www.datamp.org/patents/displayPatent.php?id=52723&pn=765,583 Pipe Wrench Patentee: Claude F. Leavitt - Boston MA Granted:1904-07-19
Manufactured by B.L. Wrench Co. - Boston MA
Assigned to Ephraim K. Baston - Boston MA

Strap wrench; the patented aspect is the method of holding the strap in the head. A wedge placed in a bight of the strap holds it in a tapered throat in the head. The wrench also is distinctive in that the handle is separate from the head. Introduced as the B.L. WRENCH in 1903; by 1908 it was offered in two sizes.
This is one of 52,314 patents currently in the database at datamp.org

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US Patent: 2,705,899 http://www.datamp.org/patents/displayPatent.php?id=34345&pn=2,705,899 Release Mechanism For A Lever Jaw Wrench Patentee: Harold A. Berger - Plano IL Granted:1955-04-12
Manufactured by Metal Engineering Company - Chicago IL
Assigned to Metal Engineering Company - Plano IL

The focus of the patent is the lock release which is a hinged segment of the lever handle. The specifications claim this structure generates sufficient leverage to overcome the locking force of the "over center" link. A 1954 METCOID (Metal Engineering Co.) ad for their LEVER JAW E-Z ACTION locking plier wrench shows this style of lock release, but cites patent no. 2,592,807. One known example is marked "GREAT GRIP - EASY ACTION / PAT. NO. 2705899." The patent also was used for early 1950s CRAFTSMAN plier wrenches with "EASY OPEN" handles. The specifications note patent nos. 2,443,153, 2,532,659, 2,543,922, 2,589,511, 2,590,750, 2,592,803, and 2,604,803 as references.
This is one of 52,314 patents currently in the database at datamp.org

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US Patent: D553,429 http://www.datamp.org/patents/displayPatent.php?id=52719&pn=D553,429 Eating Utensil Tool Apparatus Patentee: Edwin A. Jonas Jr. - Colton CA Granted:2007-10-23
Manufactured by Wrenchware - Colton CA

The design is a box end wrench forming the end of an eating utensil. In the "Wrenchware" set using this design it appears on the fork; the knife uses D535,149 and the spoon uses D552,928.
This is one of 52,314 patents currently in the database at datamp.org

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