Table saw throat plates and table saws including the same

• US 8,266,997 B2
• Filed: 08/15/2011
• Issued: 09/18/2012
• Est. Priority Date: 03/31/2005
• 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:
  US13/136,949
• Publication Number:
  US 20120042763A1
• Time in Patent Office: 400 Days
• Field of Search: 834/713, 835/81, 834/711, 834/771, 834/71, 836/98, 83/51, 834/72, 834/73, 834/77, 834/687, 834/66, 835/221.8, 834/772, 834/78, 834/402, 144/1.1, 144/286.1, 144/286.5, 220/3.5, 295/57, 295/25, 295/256.5, 403/405.1, 403/408.1, 403/409.1
• US Class Current: 83/471.3
• CPC Class Codes: B23D 47/02 of frames; of guiding arrangements for work-table or saw-carrier
• CPC Class Codes: B23D 47/025 of tables
• CPC Class Codes: Y10T 83/732 With guard
• CPC Class Codes: Y10T 83/7697 Tool angularly adjustable relative to work-support
• CPC Class Codes: Y10T 83/7726 By movement of the tool
• 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

Abstract

Throat plates for table saws and table saws including the same are disclosed. In some embodiments, the throat plates and/or saws include at least one securement mechanism adapted to secure and prevent inadvertent removal of the throat plate from the throat of the saw. In some embodiments, at least one of the securement mechanisms also provides a height adjustment mechanism and/or prevents vertical removal of the throat plate. In some embodiments, the throat plate includes an accessory mounting port that provides a portal for accessories, including safety accessories, to extend through the plate from beneath the table of the saw. In some embodiments, the port extends from the plate'"'"'s outer perimeter to divide the plate'"'"'s rear end portion into a pair of spaced-apart members. In some embodiments, these members are independently secured to the table saw and retained apart from each other by one or more of the securement mechanisms.

Claims

1. A table saw comprising:

a blade;

a motor adapted to drive the blade;

a table defining a work surface;

an opening in the table through which the blade is selectively raised and lowered;

a throat plate configured to be removably positioned within the opening, where the throat plate includes a perimeter and a rear end region;

a blade slot in the throat plate through which the blade can extend from beneath the table, where the blade slot has a width;

an accessory mounting port extending through the throat plate to provide an opening for a table saw accessory to extend through the throat plate from beneath the table, where the accessory mounting port intersects with the blade slot and with the perimeter of the throat plate;

an accessory mount positioned beneath the table and configured to hold the table saw accessory so the table saw accessory can extend through the accessory mounting port in the throat plate; and

a height adjustment mechanism positioned adjacent the accessory mounting port and further toward the rear of the throat plate than the intersection of the accessory mounting port with the blade slot, where at least a portion of the height adjustment mechanism secures the rear end region of the throat plate in the table saw.

2. The table saw of claim 1, where the height adjustment mechanism is accessible from adjacent a top surface of the throat plate.

3. The table saw of claim 1, where the height adjustment mechanism includes a threaded shaft accessible from adjacent the top surface of the throat plate.