IP Library › Granted Patent US 12,611,748
Granted Patent B2
US 12,611,748 · App. 18/219,415 · Granted Apr 28, 2026

Sanding tool with intermediate adapter pad

Inventor: Kent V. Annis (Garfield, MN)
Assignee: Full Circle International, Inc.
B24D15/023B24B7/186B24B23/00B24B41/047B24D11/02B24D15/04B24B7/182B24B7/184
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,611,748
App. No.
18/219,415
Granted
Apr 28, 2026
Kind
B2
Abstract

Example implementations relate to a sanding tool having an intermediate adapter pad. The sanding tool includes a rigid base plate configured for releasable attachment to a number of sanding handles. The sanding tool also includes an adapter pad that comprises: an upper portion configured to receive the rigid base plate, the upper portion including a perimeter portion that extends above an upper surface of the rigid base plate; and a lower surface configured for releasable attachment to a lower pad, wherein a lower surface of the lower pad is configured for releasable attachment to a working material. The perimeter portion includes a channel configured to receive a bristle ring.

Claims (42)

1 . A hand sanding tool, comprising:

a base plate configured for releasable attachment to a number of sanding handles;

an adapter pad, comprising:

an upper portion including a central portion configured to receive a lower surface of the base plate, and a perimeter portion that extends from the central portion to above an upper surface of the base plate; and

a lower surface configured for attachment to a lower pad, wherein a lower surface of the lower pad is configured for attachment to a working material; and

wherein the perimeter portion includes a channel configured to receive a bristle ring; and

wherein a periphery of the base plate is in contact with the perimeter portion.

2 . The hand sanding tool of claim 1 , wherein the adapter pad is made of a closed cell foam material and the lower pad is made of an open cell foam material.

3 . The hand sanding tool of claim 2 , wherein the closed cell foam material is an elastomeric polymer.

4 . The hand sanding tool of claim 3 , wherein the elastomeric polymer is ethylene-vinyl acetate (EVA).

5 . The hand sanding tool of claim 1 , wherein the number of sanding handles includes an elongate pole.

6 . The hand sanding tool of claim 1 , wherein at least one of the number of sanding handles comprises a vacuum attachment handle.

7 . The hand sanding tool of claim 1 , wherein the bristle ring is releasably attached to the adapter pad via the channel such that the bristle ring is replaceable without replacing the adapter pad.

8 . The hand sanding tool of claim 1 , wherein the upper portion of the adapter pad is configured for frictional attachment to the base plate.

9 . The hand sanding tool of claim 1 , wherein the lower surface of the adapter pad is configured for releasable attachment to the lower pad.

10 . The hand sanding tool of claim 9 , wherein the lower surface of the lower pad is configured for releasable attachment to the working material.

11 . The hand sanding tool of claim 1 , wherein the lower pad comprises:

a number of channels therethrough; and

a closed outer perimeter.

12 . The hand sanding tool of claim 11 , wherein the lower pad comprises:

an open center portion; and

a plurality of fingers extending radially from the closed out perimeter toward the open center portion.

13 . The hand sanding tool of claim 1 , wherein the adapter pad includes a number of radially extending finger portions configured to align with a plurality of fingers of the lower pad.

14 . The hand sanding tool of claim 1 , wherein the adapter pad and the base plate have a circular shaped periphery.

15 . The hand sanding tool of claim 1 , wherein the sanding tool is configured to provide dustless operation when coupled to a handle having a vacuum adapter when the working material is a nonporous sanding sheet and when the working material is a porous mesh sanding sheet.

16 . A hand sanding tool, comprising:

a base plate configured for releasable attachment to a number of sanding handles;

wherein the hand sanding tool is configured for conversion between at least a first tool configuration that includes an adapter pad and a second tool configuration that does not include the adapter pad, wherein the first tool configuration includes the base plate being coupled to the adapter pad, the adapter pad, comprising:

an upper portion configured to receive the base plate, the upper portion including a perimeter portion that extends above an upper surface of the base plate; and

a lower surface configured for attachment to a lower pad, wherein a lower surface of the lower pad is configured for attachment to a working material;

wherein the perimeter portion includes a channel configured to receive a bristle ring; and

wherein, the second tool configuration includes an upper surface of the lower pad being releasably attached to a lower surface of the base plate.

17 . The hand sanding tool of claim 16 , wherein the first configuration provides increased dustless sanding operation as compared to the second configuration.

18 . The hand sanding tool of claim 16 , wherein the first configuration includes at least one additional pad located between the adapter pad and the lower pad.

19 . A hand sanding tool, comprising:

a base plate;

a vacuum attachment handle releasably attached to the base plate; and

an adapter pad, comprising:

an upper portion including a central portion configured to receive the base plate, and a perimeter portion that extends from the central portion to above an upper surface of the base plate, and in contact with a periphery of the base plate; and

a lower surface configured for attachment to a lower pad, wherein a lower surface of the lower pad is configured for attachment to a working material; and

wherein the perimeter portion is configured for attachment to a bristle ring.

20 . The hand sanding tool of claim 19 , wherein the lower surface of the adapter pad is configured for releasable attachment to the lower pad, and wherein the lower surface of the lower pad is configured for releasable attachment to the working material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2023
From: ANNIS, KENT V.
To: FULL CIRCLE INTERNATIONAL, INC.
Reel/Frame 065432/0240 →
Continuity (2)
Provisional Application 63389495 · Jul 15, 2022
Related Publication 20240017374A1 · Jan 18, 2024
References Cited (23)
US 4062152A · Mehrer · 1977 [cited by examiner]
US 4071981A · Champayne · 1978 [cited by applicant]
US 4616449A · Marton · 1986 [cited by applicant]
US 4697389A · Romine · 1987 [cited by examiner]
US 4899495A · Attinger et al. · 1990 [cited by applicant]
US 5138735A · Kusz et al. · 1992 [cited by applicant]
US 5239783A · Matechuk · 1993 [cited by examiner]
US 6523214B1 · Kaiser · 2003 [cited by applicant]
US 6634937B1 · Edwards · 2003 [cited by applicant]
US 7040973B1 · Kitts · 2006 [cited by examiner]
US 7488242B2 · Gringer et al. · 2009 [cited by applicant]
US 7632174B2 · Gringer et al. · 2009 [cited by applicant]
US 7815494B2 · Gringer et al. · 2010 [cited by applicant]
US 7927192B2 · Annis · 2011 [cited by applicant]
US 8285291B2 · Dinan et al. · 2012 [cited by applicant]
US 8572797B2 · Umbrell · 2013 [cited by applicant]
US 10369683B2 · Umbrell · 2019 [cited by applicant]
US 20090124177A1 · Berryhill · 2009 [cited by examiner]
US 20190143487A1 · Clifford · 2019 [cited by examiner]
DE 20016263U1 · 2001 [cited by applicant]
DE 19718497B4 · 2010 [cited by examiner]
EP 0141139B1 · 1985 [cited by applicant]
JP 3230211U · 2021 [cited by applicant]