# US 10,119,817 B2 · Laser level

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- Number: US 10,119,817 B2
- Document ID: US10119817B2
- Status: Granted
- Kind: B2
- Application number: 15/200,142
- Filed: 2016-07-01
- Published: 2017-11-02
- Granted: 2018-11-06
- Earliest claimed: 2016-04-28
- Assignees: Stanley Black & Decker, Inc.
- Applicants: Stanley Black & Decker Inc.
- Inventors: James Spaulding; Michael T. Matteo
- Web page: https://patentgrep.com/patent/US10119817B2

## CPC

- G01C 15/002: {Active optical surveying means (optical plumbing G01C15/105)}
- G01C 15/004: {Reference lines, planes or sectors}
- G02B 7/001: {Counterbalanced structures, e.g. surgical microscopes}
- G02B 27/0988: {Diaphragms, spatial filters, masks for removing or filtering a part of the beam}
- G02B 5/04: Prisms
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A laser beam generating device which includes a housing. A laser light generator is disposed in the housing and is operable to generate two output beams which project outside of the housing. The laser light generator includes a light source and a leveling mechanism on which the laser light generator is disposed. A mounting member is disposed on the housing and is configured to mount the laser beam generating device on a screw thread. The mounting member is movable relative to the housing between a first position and a second position.

## Claims

### Claim 1

A laser beam generating device, comprising:
a housing;
a laser light generator disposed in the housing and operable to generate two output beams which project outside of the housing, the laser light generator including a light source;
a leveling mechanism on which the laser light generator is disposed;
a mounting member disposed on the housing and configured to mount the laser beam generating device on a screw thread;
wherein the mounting member is movable relative to the housing between a first position and a second position.

### Claim 2 (depends on 1)

The laser beam generating device of claim 1, wherein the mounting member includes a first mounting thread.

### Claim 3 (depends on 2)

The laser beam generating device of claim 2, wherein in the first position, the first mounting thread is aligned with at least one of the two output beams; and
wherein in the second position, the first mounting thread is offset with respect to the at least one of the two output beams.

### Claim 4 (depends on 3)

The laser beam generating device of claim 3, wherein the at least one of the two output beams includes a plumb beam.

### Claim 5 (depends on 3)

The laser beam generating device of claim 3, wherein the mounting member further comprises a second mounting thread, the second mounting thread being of a different size than the first mounting thread.

### Claim 6 (depends on 3)

The laser beam generating device of claim 3, wherein the mounting member is slidable between the first position and the second position.

### Claim 7 (depends on 3)

The laser beam generating device of claim 3, wherein the mounting member includes engagement members configured to secure the mounting member in the first position and the second position; and
wherein the housing includes housing engagement elements which engaged the engagement members to secure the mounting member in the first position and the second position.

### Claim 8 (depends on 7)

The laser beam generating device of claim 7, wherein the engagement members comprise detents and the housing engagement elements comprise detent springs.

### Claim 9

A laser beam generating device, comprising:
a housing;
a laser light generator disposed in the housing and operable to generate two output beams which project outside of the housing, the laser light generator including a light source;
a leveling mechanism on which the laser light generator is disposed;
a mounting block including a first mounting thread;
wherein the mounting block is secured to the housing and movable between a first position and a second position relative to the housing.

### Claim 10 (depends on 9)

The laser beam generating device of claim 9, wherein the mounting block is slidable between the first position and the second position.

### Claim 11 (depends on 10)

The laser beam generating device of claim 10, wherein the housing includes a mounting rail and the mounting block is slidable along the mounting rail.

### Claim 12 (depends on 9)

The laser beam generating device of claim 9, wherein the mounting block includes detents configured to secure the sliding block at the first position and at the second position.

### Claim 13 (depends on 9)

The laser beam generating device of claim 9, wherein the mounting block includes a second mounting thread which is different in size than the first mounting thread.

### Claim 14 (depends on 9)

The laser beam generating device of claim 9, wherein in the first position, the first mounting thread is aligned with at least one of the two output beams; and
wherein in the second position, the first mounting thread is offset with respect to the at least one of the two output beams.

### Claim 15 (depends on 14)

The laser beam generating device of claim 14, wherein the at least one of the two output beams comprises a plumb beam.

### Claim 16

A laser beam generating device, comprising:
a housing including at least one opening for emitting an output beam;
a laser light generator disposed in the housing and operable to generate an output beam;
a leveling mechanism on which the laser light generator is disposed;
a mounting member secured to the housing and configured to mount the laser beam;
wherein the mounting member is movable relative to the housing to at feast a first position and a second position;
wherein the mounting member includes a first mounting feature; and
wherein the output beam is aligned with the first mounting feature when the mounting member is in the first position.

### Claim 17 (depends on 16)

The laser beam generating device of claim 16, wherein the output beam is a plumb beam; and
wherein, when the housing is placed on a level horizontal surface and the mounting member is in the second position, the plumb beam passes in front of the first mounting feature.

### Claim 18 (depends on 17)

The laser beam generating device of claim 17, wherein the mounting feature is a mounting thread.

### Claim 19 (depends on 18)

The laser beam generating device of claim 18, wherein the mounting block includes detents configured to secure the mounting block in the first position and the second position.
