# US 8,784,020 B2 · Key cutting machine

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- Number: US 8,784,020 B2
- Document ID: US8784020B2
- Status: Granted
- Kind: B2
- Application number: 13/647,006
- Filed: 2012-10-08
- Published: 2013-02-14
- Granted: 2014-07-22
- Earliest claimed: 2003-10-20
- Assignees: Hy-Ko Products Company
- Applicants: Hy-Ko Products Company, Inc.
- Inventors: Richard W. Ryai, Sr.; Michael A. Bass
- Web page: https://patentgrep.com/patent/US8784020B2

## CPC

- B23C 3/35: Milling grooves in keys
- B23Q 11/0046: {by sucking}
- B23Q 11/005: {by blowing}
- B23Q 11/0075: {for removing chips or coolant from the workpiece after machining}
- B23Q 11/08: Protective coverings for parts of machine tools; Splash guards
- B23C 2230/08: Using suction
- B23C 2235/00: Details of milling keys
- B23C 2235/48: Tracers, probes or styli
- 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
- Y10T 409/300952: to cut lock key
- Y10T 409/301008: Using templet other than a key
- Y10T 409/301064: Complete cycle
- Y10T 409/30392: with means to protect operative or machine [e.g., guard, safety device, etc.]
- Y10T 409/304088: with means to remove chip
- Y10T 409/305544: with work holder
- B23C: MILLING (broaching B23D; broach-milling in making gears B23F; arrangement for copying or controlling B23Q)
- 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
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A key cutting machine includes a housing, carriage, key clamp, and motor to drive the carriage. The key cutting machine may include a vacuum removably attached to the housing. The key cutting machine may be selected between manual, automatic, and semi-automatic user modes. Additional improvements or features of a key cutting machine are also described.

## Claims

### Claim 1

A key cutting machine comprising:
a housing;
a carriage supported on said housing, said carriage rotatable between a carriage up position and a carriage down position;
a latch connected to said carriage to latch said carriage in said carriage down position;
a trigger supported on said carriage and configured to release said latch and allow said carriage to move from said down position to said up position;
a key clamp connected to said carriage;
a key cutting element located at least partially within said housing; and
a motor connected to and capable of driving said carriage; and
wherein said carriage is configured to move to said down position and be locked in place relative to said key cutting element by said latch, after said key cutting element cuts a key, until said trigger is pulled to release said latch.

### Claim 2 (depends on 1)

The key cutting machine of claim 1 further comprising a vacuum port on the housing to provide vacuum communication between the housing and a vacuum system.

### Claim 3 (depends on 2)

The key cutting machine of claim 2 wherein said vacuum system is activated when said key cutting element is activated.

### Claim 4 (depends on 3)

The key cutting machine of claim 3 wherein said vacuum system includes a vacuum tube capable of removable connection to said vacuum port.

### Claim 5 (depends on 1)

The key cutting machine of claim 1 further comprising at least one power supply outlet integral therewith for electrically connecting an external electrical device thereto.

### Claim 6

A key cutting machine comprising:
a housing;
a carriage connected to said housing, said carriage rotatable between a carriage up position and a carriage down position;
a latch connected to said carriage to latch said carriage in said carriage down position;
a trigger supported on said carriage to release said latch and allow said carriage to move from said down position to said up position;
a key cutting element located at least partially within said housing;
a motor connected to and capable of driving said carriage; and
wherein said carriage is configured to move to said down position and be locked in place relative to said key cutting element by said latch, after said key cutting element cuts a key, until said trigger is pulled to release said latch.