IP Library Granted Patent US 10,287,763
Granted Patent B2
US 10,287,763 · App. 15/689,398 · Granted May 14, 2019

Toilet plunger

Inventors: Tianzhe Wang (Shaker Heights, OH); Jason Sharratt (Seville, OH); Andrew Byron Logar (Willowick, OH); Martin Dusan Marsic (Highland Heights, OH)
Assignee: Waxman Consumer Products Group Inc.
E03C1/308
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Quick Facts
Patent No.
US 10,287,763
App. No.
15/689,398
Granted
May 14, 2019
Kind
B2
Abstract

A plunger having a plunger body with a handle flange portion for connection to an associated handle, a domed portion extending from the handle flange portion, a frustoconical portion extending from the domed portion, and a first bulbous portion extending from the frustoconical portion, wherein the domed portion is configured to collapse at least partially into the frustoconical portion during use.

Claims (17)

1. A plunger comprising:

a plunger body having a handle flange portion for connection to an associated handle, a domed portion extending from the handle flange portion, a frustoconical portion extending from the domed portion, and a first bulbous portion extending from the frustoconical portion, wherein the frustoconical portion has a wall thickness that is greater than a wall thickness of the first bulbous portion, and wherein a smallest diameter of the frustoconical portion is greater than a largest diameter of the first bulbous portion.

2. The plunger of claim 1 , wherein the domed portion includes a wall having a reduced cross-section thickness portion adjacent the frustoconical portion, wherein the domed portion is configured to collapse about the reduced cross-section thickness portion into at least a portion of the frustoconical portion.

3. The plunger of claim 2 , further comprising a second bulbous portion extending from the first bulbous portion.

4. The plunger of claim 3 , wherein the first and second bulbous portions each have a wall thickness less than the domed portion and the frustoconical portion.

5. The plunger of claim 1 , wherein the body is a unitary, one-piece elastomeric body.

6. The plunger of claim 1 , wherein the domed portion has at least one rib on an inner surface thereof, the at least one rib configured to maintain a minimum amount of space between the domed portion and the frustoconical portion when the domed portion is collapsed into the frustoconical portion.

7. The plunger of claim 1 , further comprising the handle.

8. The plunger of claim 3 , wherein a smallest diameter of the first bulbous portion is greater than the largest diameter of the second bulbous portion.

9. The plunger of claim 8 , wherein the first bulbous portion has a first axial length and the second bulbous portion has a second axial length, and wherein the first axial length is greater than the second axial length.

10. The plunger of claim 9 , further comprising a waistline at the transition of the first bulbous portion to the second bulbous portion.

11. The plunger of claim 1 , wherein the frustoconical portion includes an annular axial end face.

12. A method of unclogging a drain comprising:

positioning a plunger in an opening of the drain, the plunger having a plunger body having a handle flange portion for connection to an associated handle, a domed portion extending from the handle flange portion, a frustoconical portion extending from the domed portion, and a first bulbous portion extending from the frustoconical portion, wherein the frustoconical portion has a wall thickness that is greater than a wall thickness of the first bulbous portion, and wherein a smallest diameter of the frustoconical portion is greater than a largest diameter of the first bulbous portion, the plunger being positioned such that the opening in the body of the plunger is engaged with the drain;

applying a force along the central axis of the body sufficient to collapse the first wall section into the second wall section.

13. A plunger comprising:

a plunger body having a handle flange portion for connection to an associated handle, a domed portion extending from the handle flange portion, a frustoconical portion extending from the domed portion, and a first bulbous portion extending from the frustoconical portion, wherein the frustoconical portion has a wall thickness that is greater than a wall thickness of the first bulbous portion.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2022
From: WAXMAN CONSUMER PRODUCTS GROUP INC.
To: HOMEWERKS WORLDWIDE, LLC
Reel/Frame 059961/0624 →
RELEASE OF SECURITY INTEREST Recorded Apr 1, 2022
From: THE HUNTINGTON NATIONAL BANK
To: WAXMAN CONSUMER PRODUCTS GROUP INC.
Reel/Frame 059473/0058 →
SECURITY INTEREST Recorded Mar 30, 2022
From: WAXMAN INDUSTRIES, INC.; WAXMAN USA, INC.; WAXMAN INDUSTRIAL GROUP, INC.; WAXMAN CONSUMER PRODUCTS GROUP, INC.; LEAKSMART, INC.
To: THE HUNTINGTON NATIONAL BANK
Reel/Frame 059443/0668 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 29, 2017
From: WANG, TIANZHE; SHARRATT, JASON; LOGAR, ANDREW BYRON; MARSIC, MARTIN DUSAN
To: WAXMAN CONSUMER PRODUCTS GROUP INC.
Reel/Frame 043435/0090 →
Continuity (2)
Provisional Application 62433927 · Dec 14, 2016
Related Publication 20180163383A1 · Jun 14, 2018
Cited By (1)
US 1,079,158