Hand seamer with replaceable blades

Abstract

An improved compound leverage hand seamer with removable blades. The hand seamer includes a pair of pivotably connected handles and a pair of pivotably connected seamer heads. Each of the seamer heads is connected to one of the handles at a first end and terminates at a second end in a substantially planar head segment having a flat, inwardly-facing mounting surface. A substantially planar, rectangular blade is removably mounted to the mounting surface of each of the seamer heads in a flatly abutting relationship therewith by a pair of threaded fasteners that engage threaded mounting holes in the blades and in the seamer heads. The blades can be conveniently removed and replaced if they become worn or damaged, or if user wishes, to install smaller or larger blades on the hand seamer.

1 . An improved hand seamer having a pair of pivotably connected handles and a pair of pivotably connected seamer heads, each seamer head connected to one of the handles at a first end and terminating in a substantially planar blade at a second end, wherein the blades can be clamped together in a flatly abutting relationship through forcible movement of the handles, wherein the improvement is a seamer head comprising:
 (a) a pair of neck segments each neck segment fixed to and extending from a different one of the handles;   (b) a pair of head segments each head segment fixed to a different one of the neck segments; and   (c) a pair of removable blades each blade removably attached by a removable fastener to a different one of the head segments.   
     
     
         2 . The improved hand seamer in accordance with  claim 1 , wherein each neck segment fixed to a head segment together are T shaped and the removable fasteners are threaded fasteners. 
     
     
         3 . The improved hand seamer in accordance with  claim 2 , wherein each head segment is substantially flat and rectangular and has an inwardly facing mating surface and each blade is substantially planar and flat and has a substantially flat outwardly facing mating surface in flatly abutting engagement against the inwardly facing mating surface of a head segment. 
     
     
         4 . The improved hand seamer in accordance with  claim 3 , wherein the threaded fasteners pass through mounting holes in the seamer heads and engage threaded mounting holes in the blades. 
     
     
         5 . The improved hand seamer in accordance with  claim 4 , wherein two threaded fasteners hold each blade to a respective seamer head. 
     
     
         6 . The improved hand seamer in accordance with  claim 5 , wherein the handles are compound leverage handles. 
     
     
         7 . An improved hand seamer having a pair of pivotably connected, compound leverage handles and a pair of pivotably connected seamer heads, each seamer head connected to one of the handles at a first end and terminating in a substantially planar blade at a second end, wherein the blades can be clamped together in a flatly abutting relationship through forcible movement of the handles, the improvement comprising removable, threaded fasteners that pass through mounting holes in the seamer heads and that engage threaded mounting holes in the blades for removably holding the blades to the seamer heads.