Brake cartridges and mounting systems for brake cartridges

• US 8,459,157 B2
• Filed: 12/31/2004
• Issued: 06/11/2013
• Est. Priority Date: 12/31/2003
• Status: Active Grant

• Current Assignee: Sawstop Holding LLC
• Original Assignee: SD3, LLC
• Inventors: Gass, Stephen F., Fulmer, J. David, Fanning, David A.
• Primary Examiner(s): Alie, Ghassem
• Application Number:
  US11/026,006
• Publication Number:
  US 20050139058A1
• Time in Patent Office: 3,084 Days
• Field of Search: 83/58, 834/772, 83D/IG.1, 835/81, 834/771, 834/87, 834/71, 833/971, 83/621, 837/81, 833/97, 835/221.2, 834/73, 403/154, 403/157, 403/376, 403/60, 403/83, 403/87, 403/94, 403/114, 403/159, 403/312, 403/326
• US Class Current: 83/58
• CPC Class Codes: B24B 55/00 Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition of general applicability for machine tools B23Q11/00; in general F16P
• CPC Class Codes: B27B 5/38 Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing B23D47/005 takes precedence
• CPC Class Codes: F16D 49/00 Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like similar clutches F16D13/10
• CPC Class Codes: F16P 3/12 with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine F16P3/08 takes precedence
• CPC Class Codes: Y10T 83/081 With randomly actuated stopping means
• CPC Class Codes: Y10T 83/089 Responsive to tool characteristic
• CPC Class Codes: Y10T 83/613 Work guard
• CPC Class Codes: Y10T 83/773 Work-support includes passageway for tool [e.g., slotted table]
• CPC Class Codes: Y10T 83/7734 With guard for tool
• CPC Class Codes: Y10T 83/8773 Bevel or miter cut

Abstract

Safety systems for power equipment, components, brake cartridges and mounting systems for brake cartridges are disclosed. The safety systems, components, brake cartridges and mounting systems are specifically applicable for woodworking equipment such as saws. A brake cartridge system may include a key adapted to secure the brake cartridge in a power tool, and a bracket configured to receive at least part of the key.

Claims

1. A brake cartridge system for use in a safety system for a power tools, the brake cartridge system comprising:

a brake cartridge adapted to engage a working portion of the power tool when triggered;

a bracket system adapted to hold the brake cartridge in the power tool in an operable position, where the bracket system includes alignable first and second portions that align in a predetermined manner to hold the brake cartridge in the operable position; and

a key adapted to secure the brake cartridge to the bracket system only when the first and second portions align in the predetermined manner, so that securing the brake cartridge to the bracket system indicates that the brake cartridge is operably positioned in the power tool.

2. The brake cartridge system of claim 1, where the key is adapted to turn to secure the brake cartridge to the bracket system.

3. The brake cartridge system of claim 1, where the first and second portions include apertures that align and through which at least part of the key passes to secure the brake cartridge to the bracket system.

4. The brake cartridge system of claim 3, where the key is adapted to turn to secure the brake cartridge to the bracket system.

5. The brake cartridge system of claim 4, where the apertures and the key are configured so that the key can turn only when a predetermined portion of the key has passed through the apertures.

6. The brake cartridge system of claim 1, where the first and second portions include adjacent planar sections.

7. The brake cartridge system of claim 6, where the adjacent planar sections are configured to move relative to each other.

8. The brake cartridge system of claim 6, where each adjacent planar section includes an aperture.

9. The brake cartridge system of claim 8, where the adjacent planar sections are configured to move relative to each other to align the apertures.

10. A brake cartridge system for use in a safety system for a power tool, the brake cartridge system comprising:

a brake cartridge adapted to engage a working portion of the power tool when triggered;

alignable bracket means for holding the brake cartridge in the power tool in an operable position when aligned; and

key means for securing the brake cartridge in the operable position only when the alignable bracket means is aligned.