# US 11,077,533 B2 · Power tool dust collector

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,077,533 B2
- Document ID: US11077533B2
- Status: Granted
- Kind: B2
- Application number: 16/718,280
- Filed: 2019-12-18
- Published: 2020-04-23
- Granted: 2021-08-03
- Earliest claimed: 2008-05-09
- Assignees: Milwaukee Electric Tool Corporation; Techtronic Power Tools Technology Limited
- Applicants: Milwaukee Electric Tool Corporation; Techtronic Power Tools Technology Limited
- Inventors: Kurt Limberg; Ryan T. Harrison; Mark A. Kubale; Mark D. Hickok
- Web page: https://patentgrep.com/patent/US11077533B2

## CPC

- B23Q 11/00: Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work {(accessories specially designed for sawing machines or sawing devices B23D59/00)}; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools (in respect of boring or drilling machines B23B47/32 takes precedence; safety devices in general F16P)
- B23Q 11/0046: {by sucking}
- B25F 5/02: Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)}
- B25F 5/026: {in the form of an auxiliary handle (B25F5/024 takes precedence)}
- B25G 3/20: comprising clamping or contracting means acting concentrically on the handle or socket
- B25G 3/32: in association with, or including, tang, bolt, or other member passing axially through whole length of handle
- Y02P 70/10: Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
- B23Q: DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING (tools of the kind used in lathes or boring machines B23B27/00); MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)}
- B25G: HANDLES FOR HAND IMPLEMENTS (attaching the blades or the like to handles of hand tools for soil working A01B1/22; handles of hand implements for harvesting A01D1/14; handles integral with brushware A46B)
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

An auxiliary handle can be used with a power tool having a housing that includes a first notch and a second notch. The auxiliary handle includes a shaft, a first clamp coupled to the shaft and having a first protrusion configured to engage the first notch, a second clamp arranged on the shaft and having a second protrusion configured to engage the second notch, and a grip coupled to the shaft. When the first protrusion of the first clamp engages the first notch and the grip is rotated relative to the second clamp, the second clamp is moved toward the first clamp, such that the first protrusion engages the first notch and the second protrusion engages the second notch to couple the auxiliary handle to the housing of the power tool.

## Claims

### Claim 1

An auxiliary handle for use with a power tool having a housing that includes a first notch and a second notch, the auxiliary handle comprising:
a shaft defining a shaft axis;
a first clamp coupled to the shaft and having a first body portion extending along the shaft axis, a first leg portion extending from the first body portion in a direction transverse to the first body portion, and a first protrusion extending from an end of the first leg portion furthest from the shaft axis in a direction transverse to the first leg portion, the first protrusion configured to engage the first notch;
a second clamp arranged on the shaft and having a second body portion extending along the shaft axis, a second leg portion extending from the second body portion in a direction transverse to the second body portion, and a second protrusion extending from an end of the second leg portion furthest from the shaft axis in a direction transverse to the second leg portion, the second protrusion configured to engage the second notch; and
a grip coupled to the shaft,
wherein when the first protrusion of the first clamp engages the first notch and the grip is rotated relative to the second clamp, the second clamp is moved toward the first clamp, such that the first protrusion engages the first notch and the second protrusion engages the second notch to couple the auxiliary handle to the housing of the power tool, and
wherein a first recess is defined between the first body portion and the first protrusion, and wherein a first nose portion adjacent the first notch of the housing is configured to be received in the first recess when the first protrusion engages the first notch, such that the first protrusion is inhibited from disengaging from the first notch.

### Claim 2 (depends on 1)

The auxiliary handle of claim 1, wherein the first leg portion extends in a direction perpendicular to the shaft, and wherein the second leg portion extends in direction perpendicular to the shaft.

### Claim 3 (depends on 2)

The auxiliary handle of claim 2, wherein the first protrusion extends in a direction that is substantially parallel with the shaft, and wherein the second protrusion extends in direction that is substantially parallel with the shaft.

### Claim 4 (depends on 1)

The auxiliary handle of claim 1, wherein a second recess is defined between the second body portion and the second protrusion, and wherein a second nose portion adjacent the second notch of the housing is configured to be received in the second recess when the second protrusion engages the second notch, such that the first protrusion is inhibited from disengaging from the second notch.

### Claim 5

An auxiliary handle for use with a power tool having a housing that includes a first notch and a second notch, the auxiliary handle comprising:
a shaft defining a shaft axis;
a first clamp arranged on the shaft and having a first body portion extending along the shaft axis, a first leg portion extending from the first body portion in a direction transverse to the first body portion, and a first protrusion extending from an end of the first leg portion furthest from the shaft axis in a direction transverse to the first leg portion, the first protrusion configured to engage the first notch;
a second clamp arranged on the shaft and having a second body portion extending along the shaft axis, a second leg portion extending from the second body portion in a direction transverse to the second body portion, and a second protrusion extending from an end of the second leg portion furthest from the shaft axis in a direction transverse to the second leg portion, the second protrusion configured to engage the second notch; and
a grip coupled to the shaft,
wherein in response to rotation of the grip relative to the first and second clamps, the first and second clamps are moved toward each other, such that the first protrusion can engage the first notch and the second protrusion can engage the second notch to couple the auxiliary handle to the housing of the power tool, and
wherein a first recess is defined between the first body portion and the first protrusion, and wherein a first nose portion adjacent the first notch of the housing is configured to be received in the first recess when the first protrusion engages the first notch, such that the first protrusion is inhibited from disengaging from the first notch.

### Claim 6 (depends on 5)

The auxiliary handle of claim 5, wherein the first leg portion extends in a direction perpendicular to the shaft, and wherein the second leg portion extends in direction perpendicular to the shaft.

### Claim 7 (depends on 6)

The auxiliary handle of claim 6, wherein the first protrusion extends in a direction that is substantially parallel with the shaft, and wherein the second protrusion extends in direction that is substantially parallel with the shaft.

### Claim 8 (depends on 7)

The auxiliary handle of claim 7, wherein the first body portion includes a first passageway through which the shaft extends.

### Claim 9 (depends on 5)

The auxiliary handle of claim 5, wherein a second recess is defined between the second body portion and the second protrusion, and wherein a second nose portion adjacent the second notch of the housing is configured to be received in the second recess when the second protrusion engages the second notch, such that the first protrusion is inhibited from disengaging from the second notch.

### Claim 10

An auxiliary handle for use with a power tool having a housing that includes a first notch and a second notch, the auxiliary handle comprising:
a shaft defining a shaft axis;
a first clamp arranged on the shaft and having first body portion extending along the shaft axis, a first leg portion extending from the first body portion in a direction transverse to the first body portion, and a first protrusion extending from an end of the first leg portion furthest from the shaft axis in direction transverse to the first leg portion, the first protrusion configured to engage the first notch, the first clamp movable along the shaft between a first position in which the first protrusion engages the first notch, and a second position in which the first protrusion does not engage the first notch;
a second clamp arranged on the shaft and having a second body portion extending along the shaft axis, a second leg portion extending from the second body portion in a direction transverse to the second body portion, and a second protrusion extending from an end of the second leg portion furthest from the shaft axis in a direction transverse to the second leg portion, the second protrusion configured to engage the second notch, the second clamp movable between a first position in which the second protrusion engages the second notch, and a second position in which the second protrusion does not engage the second notch; and
a grip coupled to the shaft, wherein in response to rotation of the grip relative to the first and second clamps, the first and second clamps are respectively moved to their first positions, such that the handle is coupled to the housing of the power tool,
wherein a first recess is defined between the first body portion and the first protrusion, and
wherein a first nose portion adjacent the first notch of the housing is configured to be received in the first recess when the first protrusion engages the first notch, such that the first protrusion is inhibited from disengaging from the first notch.

### Claim 11 (depends on 10)

The auxiliary handle of claim 10, wherein the first leg portion extends in a direction perpendicular to the shaft, and wherein the second leg portion extends in direction perpendicular to the shaft.

### Claim 12 (depends on 11)

The auxiliary handle of claim 11, wherein the first protrusion extends in a direction that is substantially parallel with the shaft, and wherein the second protrusion extends in direction that is substantially parallel with the shaft.

### Claim 13 (depends on 10)

The auxiliary handle of claim 10, wherein the first body portion includes a first passageway through which the shaft extends.

### Claim 14 (depends on 10)

The auxiliary handle of claim 10, wherein a second recess is defined between the second body portion and the second protrusion, and wherein a second nose portion adjacent the second notch of the housing is configured to be received in the second recess when the second protrusion engages the second notch, such that the second protrusion is inhibited from disengaging from the second notch.

### Claim 15

A power tool assembly comprising:
a power tool having a housing that includes a first notch and a second notch; and
an auxiliary handle including
a shaft defining a shaft axis,
a first clamp arranged on the shaft and having a first body portion extending along the shaft axis, a first leg portion extending from the first body portion in a direction transverse to the first body portion, and a first protrusion extending from an end of the first leg portion furthest from the shaft axis in a direction transverse to the first leg portion, the first protrusion configured to engage the first notch,
a second clamp arranged on the shaft and having a second body portion extending along the shaft axis, a second leg portion extending from the second body portion in a direction transverse to the second body portion, and a second protrusion extending from an end of the second leg portion furthest from the shaft axis in a direction transverse to the second leg portion, the second protrusion configured to engage the second notch, and
a grip coupled to the shaft,
wherein rotation of the grip relative to the first and second clamps causes movement of the first and second clamps toward each other, such that the first protrusion engages the first notch and the second protrusion engages the second notch to couple the auxiliary handle to the housing of the power tool,
wherein a first recess is defined between the first body portion and the first protrusion, and wherein the housing further includes a first nose portion arranged adjacent the first notch, and wherein the first nose portion is receivable in the first recess when the first protrusion is engaged with the first notch, such that the first protrusion is inhibited from disengaging from the first notch.

### Claim 16 (depends on 15)

The power tool assembly of claim 15, wherein a second recess is defined between the second body portion and the second protrusion, and wherein the housing further includes a second nose portion arranged adjacent the second notch, and wherein the second nose portion is receivable in the second recess when the second protrusion is engaged with the second notch, such that the second protrusion is inhibited from disengaging from the second notch.

### Claim 17 (depends on 16)

The power tool assembly of claim 16, wherein when the first protrusion engages the first notch and the second protrusion engages the second notch, the first clamp applies a first clamping force against the first nose, and the second clamp applies a second clamping force against the second nose.

### Claim 18 (depends on 17)

The power tool assembly of claim 17, wherein the first and second clamping forces are arranged along a line of action that is parallel with the shaft.

### Claim 19 (depends on 15)

The power tool assembly of claim 15, wherein the housing is a gear casing of the power tool.

### Claim 20 (depends on 19)

The power tool of claim 19, wherein the first and second notches are formed in an upper portion of the gear casing.

### Claim 21 (depends on 15)

The power tool assembly of claim 15, wherein the power tool includes a chuck end of the power tool and a handle end of the power tool.

### Claim 22 (depends on 21)

The power tool assembly of claim 21, wherein the handle end includes a main handle.

### Claim 23 (depends on 22)

The power tool assembly of claim 22, wherein the chuck end includes a chuck defining a chuck axis, and wherein the first and second notches are radially outward of the chuck axis.

### Claim 24 (depends on 23)

The power tool assembly of claim 23, wherein the power tool includes an actuator positioned adjacent the main handle, the actuator configured to rotate the chuck.

### Claim 25 (depends on 15)

The power tool assembly of claim 15, wherein the first leg portion extends in a direction perpendicular to the shaft, and wherein the second leg portion extends in direction perpendicular to the shaft.

### Claim 26 (depends on 15)

The power tool assembly of claim 15, wherein the first protrusion extends in a direction that is substantially parallel with the shaft, and wherein the second protrusion extends in direction that is substantially parallel with the shaft.