Fluid pickup assembly and blade guard for a pavement treatment apparatus
AssigneeHusqvarna Professional Outdoor Products Inc.
InventorAnthony Baratta
Life of this patent
Estimating the term…
Abstract
Abrading and cutting devices such as saws include waste containment systems and methods to improve removal of slurry or other contaminants from a work area during operations, and separation of slurry from a carrying medium such as air. A blade guard includes fluid channels, and may be removable from a blade guard carriage. The carriage may be used to minimize any need to readjust the blade guard position when the blade guard is returned to the carriage for further use. A vacuum bar may be included on the carriage. A vacuum pickup assembly may be used with a blade guard, and the vacuum assembly may include separate and/or different vacuum pickup configurations.
Claims30
A tool guard for extending adjacent a moving tool, the tool guard comprising:
- at least one wall extending adjacent the moving tool, and having an edge portion extending adjacent a work piece to be operated on by the tool and wherein the at least one wall extends away from the edge portion;
- and
- a second wall portion contacting the at least one wall along a line that extends in a direction at least partly horizontally and extending from the at least one wall in a substantially fixed direction toward the tool and extending from the edge portion in a direction away from the edge portion.
A blade guard for a saw blade, the blade guard comprising:
- first and second oppositely facing walls for extending along respective flat sides of the saw blade, and wherein the first wall includes an edge portion;
- a third wall contacting the first facing wall and extending toward the second facing wall and having a first end portion and a second end portion wherein the third wall extends from the first end portion adjacent the edge portion away from the edge portion to the second end portion;
- and
- a fourth wall contacting the second facing wall wherein the third and fourth walls extend toward each other.
A blade guard for a saw blade, the blade guard comprising:
- first and second oppositely facing walls for extending along respective flat sides of the saw blade, and wherein the first wall includes an edge portion;
- a third wall contacting the first facing wall and extending toward the second facing wall and having a first end portion and a second end portion wherein the third wall extends from the first end portion adjacent the edge portion away from the edge portion to the second end portion;
- and
- wherein the first and second side walls include respective edge portions extending between respective first and second end portions and configured to be placed adjacent a work surface and further comprising at least one spacer wall connecting the first and second side walls from the first end portions of the first and second side walls to the second end portions of the first and second side walls.
A blade guard for a saw blade, the blade guard comprising:
- first and second oppositely facing walls for extending along respective flat sides of the saw blade, and wherein the first wall includes an edge portion;
- a third wall contacting the first facing wall and extending toward the second facing wall and having a first end portion and a second end portion wherein the third wall extends from the first end portion adjacent the edge portion away from the edge portion to the second end portion;
- and
- wherein the third wall includes first and second segments wherein the first segment extends in a first direction and the second segment extends in a second direction.
A blade guard for a saw blade, the blade guard comprising:
- first and second oppositely facing walls for extending along respective flat sides of the saw blade, and wherein the first wall includes an edge portion;
- a third wall contacting the first facing wall and extending toward the second facing wall and having a first end portion and a second end portion wherein the third wall extends from the first end portion adjacent the edge portion away from the edge portion to the second end portion;
- and
- a removable carriage having at least one rolling element.
A blade guard assembly comprising:
- a blade guard support configured to be positioned on a support surface, and including an upper portion having at least one blade guard support element for supporting a blade guard for positioning relative to the support surface;
- and
- a blade guard having a lower portion configured to engage the upper portion of the blade guard support and removable from the blade guard support, wherein the blade guard is supported by the blade guard support when the blade guard contacts the at least one blade guard support element.
A tool guard and vacuum assembly comprising:
- a tool guard configured to extend at least partly about a tool used to operate on a work piece so as to define a volume within which the tool operates;
- a vacuum assembly assembled with the tool guard, including a plurality of walls defining openings for passing material through the openings;
- and
- a manifold coupled to the vacuum assembly and having at least two walls defining first and second passage ways, wherein the first passage way is in fluid communication with at least one of the openings, wherein the second passage way is not in fluid communication with the at least one of the openings, and wherein the first and second passage ways have different shapes.
Dependencies are inferred from the claim text.