Angle grinder dust shroud with slideable access hatch

• US 8,523,637 B2
• Filed: 07/19/2010
• Issued: 09/03/2013
• Est. Priority Date: 07/21/2009
• Status: Active Grant

• Current Assignee: Dustless Depot
• Original Assignee: Dustless Depot
• Inventors: Loveless, Spencer, Bjork, Kyle Alan, Diess, Darren
• Primary Examiner(s): Eley, Timothy V
• Application Number:
  US12/839,270
• Publication Number:
  US 20110021121A1
• Time in Patent Office: 1,142 Days
• Field of Search: 301/24, 301/51, 831/00, 451/354, 451/356, 451/357, 451/358, 451/359, 451/452, 451/456, 451/457
• US Class Current: 451/359
• CPC Class Codes: B24B 23/028 Angle tools
• CPC Class Codes: B24B 55/052 with rotating tools
• CPC Class Codes: B24B 55/102 with rotating tools

Abstract

A dust shroud for an angle grinder includes an access hatch which slides along the shroud body to selectively expose an edge of a grinding disc to allow grinding into a corner. The hatch remains attached to the shroud body in both the open and closed position, making the hatch easier to use and less likely to become lost, resulting in increased worker compliance in properly using the hatch.

Claims

1. A dust shroud for an angle grinder comprising:

a shroud body configured to enclose a grinding disc;

a vacuum port attached to the shroud body to draw air from inside of the shroud body;

a mounting mechanism for attaching the shroud body to an angle grinder;

an access hatch on the shroud body, the access hatch being slideably attached to the shroud body so as to allow the hatch to slide from a closed position to an open position while remaining attached to the shroud body, wherein the access hatch is configured for movement to the open position to expose a side of a grinding disc;

wherein the shroud body is circular in shape, and wherein the access hatch slides along the circumference of the shroud body; and

further comprising an upper guide disposed on the top of the shroud body and a lower guide disposed along a skirt which extends downwardly from the top of the shroud body, and wherein the hatch slides along the upper guide and the lower guide to move in a circular direction around the shroud body.

2. The dust shroud of claim 1, wherein the shroud body comprises a generally flat upper surface and a skirt extending downwardly therefrom.

3. The dust shroud of claim 1, wherein the upper guide defines a guide channel and wherein the access hatch has a portion extending into the guide channel and being captively held therein such that the access hatch can slide around the shroud body.

4. The dust shroud of claim 3, wherein the shroud body has stops formed thereon for selectively holding the access hatch in an open position or a closed position.

5. The dust shroud of claim 1, wherein the shroud body has bristles extending downwardly from an outer edge thereof and wherein the access hatch has bristles extending downwardly from an outer edge thereof, and wherein the access hatch is selectively closeable such that the bristles form a circle and wherein the access hatch is selectively openable such that the bristles form a portion of a circle having an opening therein.

6. A dust shroud for an angle grinder comprising:

a generally circular shroud body having an upper surface and a skirt extending downwardly therefrom so as to generally enclose a grinding disc, the shroud body having a side opening on a side thereof, the side opening being configured to allow a portion of a grinding disc to extend through the side opening;

a center opening in the center of the shroud body for receiving the output shaft of an angle grinder;

a mount adjacent the opening for attachment to the angle grinder;

an access hatch slidably attached to the shroud body adjacent an outer perimeter of the shroud body to slide circumferentially around the outside of the shroud body, the access hatch being slidable between an open position wherein the access hatch does not substantially cover the side opening and a closed position wherein the access hatch covers the side opening.

7. The dust shroud of claim 6, further comprising a vacuum port connected to the shroud body to draw air from around the grinding disc.

8. The dust shroud of claim 6, wherein the shroud body has bristles extending downwardly from the perimeter thereof.

9. The dust shroud of claim 6, wherein the shroud body has an upper guide channel disposed adjacent the skirt formed thereon, and wherein the access hatch is slidably received in the upper guide channel to control the movement thereof.

10. The dust shroud of claim 9, wherein the access hatch engages the lower perimeter of the shroud body.

11. The dust shroud of claim 6, wherein the shroud body has stops to limit the motion of the access hatch.

12. A dust shroud for an angle grinder comprising:

a generally circular shroud body configured to enclose a grinding disc, the shroud body having an upper surface and an outer skirt extending downwardly from the upper surface;

an opening formed in the skirt;

a mounting mechanism for attaching the shroud body to an angle grinder;

an access hatch slidably attached to the skirt and movable circumferentially around the outside of the shroud body between an open position where the access hatch does not cover the opening and a closed position where the access hatch covers the opening.

13. The dust shroud of claim 12, wherein the shroud body has an upper guide channel disposed adjacent the skirt, and wherein the access hatch is slidably received in the upper guide channel to control the movement thereof.

14. The dust shroud of claim 12, wherein the access hatch engages a lower perimeter of the skirt.

15. The dust shroud of claim 12, wherein the shroud body has a curved upper guide channel disposed adjacent the skirt and wherein the access hatch has a portion extending into the guide channel and being captively held therein such that the access hatch can slide around the shroud body.

16. The dust shroud of claim 12, further comprising an upper guide disposed adjacent the top of the skirt and a lower guide disposed along the skirt, and wherein the hatch slides along the upper guide and the lower guide.

17. The dust shroud of claim 12, wherein the shroud body has stops formed thereon for selectively holding the access hatch in an open position or a closed position.

18. The dust shroud of claim 12, wherein the shroud body has bristles extending downwardly from a perimeter thereof.

19. The dust shroud of claim 12, further comprising a vacuum port attached to the shroud body to draw air from inside of the shroud body.