Level with metal frame supporting protective outer body

Patent metadata

Field	Value
Publication number	US-10520308-B2
Application number	US-201715650471-A
Country	US
Kind code	B2
Filing date	Jul 14, 2017
Priority date	Jun 24, 2016
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

A tool, such as a level, including one or more polymer/plastic body segment, protective cover and/or seal is provided. The covers discussed herein may limit or prevent dirt or construction materials, such as concrete, from entering into the level body. The cover may also be a non-stick material, such as a polymer outer sleeve, that limits the ability of dirt and construction material to adhere to the level. The level may also include scratch resistant vial windows.

First claim

What is claimed is:

1. A level comprising:
a level frame formed from a metal material, the level frame comprising:
a planar base surface;
a vertical wall extending away from the planar base surface;
a vial opening defined at least in part within the vertical wall; and
a longitudinal axis extending between opposing ends of the level frame;

a level vial supported by the level frame within the vial opening; and
an outer level body coupled to the level frame, the outer level body comprising:
a support section formed from a first plastic material, the support section engaging the level frame such that the outer level body is coupled to the level frame;
a grip section formed from a second plastic material and coupled to an outer surface of the support section, the grip section defining at least a part of an exterior surface of the level;
wherein the second plastic material has a durometer that is less than a durometer of the first plastic material; and
wherein the level frame includes an upper flange located at an upper end of the vertical wall and base structure located at a lower end of the vertical wall, wherein the outer level body defines an upward facing surface that engages a downward facing surface of the upper flange, wherein the outer level body defines a downward facing surface that engages an upward facing surface of the base structure.

2. The level of claim 1 , wherein the grip section defines between 5% and 75% of the total surface area of the exterior surface of the level.

3. The level of claim 1 , wherein the grip section extends downward along the support section in a direction toward the planar base surface and also extends inward toward the vertical wall.

4. The level of claim 1 , wherein the outer level body, when viewed in a longitudinal cross-section, further comprises:
an enlarged upper portion have a maximum width located at a vertical position between a vertical mid-point of the vertical wall and the upper flange;
an inwardly extending central section extending inward toward the vertical wall and located below the enlarged upper portion; and
an outwardly extending lower section extending outward toward the upward facing surface of the base structure and located below the inwardly extending central section.

5. The level claim 4 , wherein the grip section defines at least a portion of the outer surface of the enlarged upper portion and the support section is a contiguous piece of plastic material forming the enlarged upper portion, the inwardly extending central section and the outwardly extending lower section.

6. A level comprising:
a level frame formed from a metal material, the level frame comprising:
an upper surface;
a vertical wall extending downward away from the upper surface;
a base structure comprising:
a bottom wall defining a planar base surface configured to engage a workpiece;
a first sidewall extending upward from a first lateral edge of the bottom wall defining a first corner edge;
a second sidewall extending upward from a second lateral edge of the bottom wall defining a second corner edge;
a pair of angled sidewalls each extending from one of the first and second sidewalls to a lower end of the vertical wall;
wherein a radius of curvature of an outer surface of the first corner edge is at least twice the radius of curvature of an outer surface of the second corner edge;

a vial opening defined at least in part within the vertical wall; and
a longitudinal axis extending between opposing ends of the level frame; and
a level vial supported by the level frame within the vial opening.

7. The level of claim 6 , wherein inner surfaces of the bottom wall, the first sidewall, the second sidewall and the pair of angled sidewalls define a longitudinal cavity that extends between opposing first and second ends opposing ends of the level frame.

8. The level of claim 7 , wherein the upper surface and the planar base surface are parallel to each other, wherein the vertical wall is perpendicular to the upper surface and to the planar base surface and bisects the planes defined by both the upper surface and the planar base surface, wherein a width of the upper surface is less than a width of the planar base surface.

9. The level of claim 8 , wherein the metal material of the level frame includes a magnesium material.

10. The level of claim 6 , further comprising outer level body coupled to the level frame, wherein an upper portion of the first sidewall extends upward past a lower end of one of the angled sidewalls and defines a first engagement surface and an upper portion of the second sidewall extends upward past a lower end of the other of the angled sidewall and defines a second engagement surface, wherein the outer level body includes a first downward facing engagement surface that engages the first engagement surface and a second downward facing engagement surface that engages the second engagement surface.

11. The level of claim 10 , wherein the outer level body comprises:
a support section formed from a first plastic material, the support section engaging the level frame such that the outer level body is supported by the level frame;
a grip section formed from a second plastic material and coupled to an outer surface of the support section, the grip section defining a portion of an exterior surface of the level;
wherein the second plastic material has a durometer that is less than a durometer of the first plastic material.

12. The level of claim 10 , wherein the outer level body comprises:
a first pair of plastic body segments coupled to and positioned on opposite sides of the vertical wall of the level frame such that the first pair of plastic body segments define part of an exterior surface of the level; and
a second pair of plastic body segments coupled to and positioned on opposite sides of the vertical wall of the level frame such that the second pair of plastic body segments define part of the exterior surface of the level.

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Burge Joseph William
• Caelwaerts Michael John
• Wyatt Michael
• Deakins Bryant

Classifications

• G01C9/26 Primary

  Details · CPC title

• A47G1/16

  Devices for hanging or supporting pictures, mirrors, or the like · CPC title