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US 7,458,127 B2Granted
Taping knife with offset handle
AssigneeUnited States Gypsum Company
InventorsRobert Bruno, Frank Sterpka, Matthew Earle Myers
Life of this patent
Estimating the term…
Abstract
A taping knife has a web, a working edge, two side edges, and a handle edge opposite the working edge. The handle is connected to the blade to have an angular orientation relative to the working edge of the blade such that the handle is neither parallel nor perpendicular to the blade working edge.
Claims14
A taping knife comprising:
- a blade having a web, a working edge, two side edges, and a handle edge opposite said working edge;
- and
- a handle connected to said blade, said handle having a non-perpendicular, non-parallel, angular orientation relative to said working edge of said blade, said handle having a first side proximal to one of said side edges and a second side proximal to another of said side edges, said first side and said second side each having an arcuate shape, said first side and said second side being non-symmetrical about a central axis passing through said handle, said second side having a greater radius of curvature than said first side, said handle including a first end and a second end separated by a middle portion, said first end extending laterally along said blade a greater distance from said first side than from said second side, said middle portion including a neck portion adjacent to said first end and a body portion adjacent to said second end, said neck portion defined by opposing concave surfaces and said body portion defined by opposing convex surfaces on said first and second sides, a central portion of said body portion having a width that is greater than a width of said neck portion and an end portion of said body portion adjacent said second end, said handle being arranged at an angle in a range of 3-10° relative to said working edge.
A taping knife comprising:
- a blade having a web, a working edge, two side edges, a handle edge opposite said working edge and a reinforcing backing along the handle edge that extends over a portion of said web of said blade;
- and
- a handle connected to said blade, said handle having a non-perpendicular, non-parallel, angular orientation relative to said working edge of said blade, said handle including a first side proximal to one of said side edges, having a first arcuate shape and a second opposing side proximal to another of said side edges, having a second arcuate shape, said first side and said second side being non-symmetrical about a central axis passing through said handle, said second side having a greater radius of curvature than said first side, said handle having a first end and a second end separated by a middle portion, said first end extending laterally along said blade a greater distance from said first side than from said second side, said first end being attachable to said blade to from a moisture-resistant barrier where said handle and said blade are joined and having a length that is substantially the same as a distance said reinforcing backing extends over said web of said blade, said second end including a hammer element made from a relatively harder material, said handle including a neck portion adjacent to said first end and a body portion adjacent to said second end, said neck portion defined by opposing concave surfaces and said body portion defined by opposing convex surfaces on said first and second sides, a central portion of said body portion having a width that is greater than a width of said neck portion and an end portion of said body portion adjacent said second end.
Dependencies are inferred from the claim text.