Pretreatment assembly for a washing machine appliance

US10344423B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10344423-B2
Application numberUS-201715687596-A
CountryUS
Kind codeB2
Filing dateAug 28, 2017
Priority dateAug 28, 2017
Publication dateJul 9, 2019
Grant dateJul 9, 2019

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A washing machine appliance includes a pretreatment assembly positioned proximate a top panel of the washing machine appliance for spot treating articles of clothing prior to a wash cycle. The pretreatment assembly includes a detergent reservoir defining an aperture and being configured for receiving a fluid additive. A ball socket is positioned at least partially within the aperture and a roller ball applicator is rotatably mounted within the ball socket. The roller ball applicator is at least partially in contact with the fluid additive within the detergent reservoir such that a user may rub an article of clothing on the roller ball applicator to transfer fluid additive from the detergent reservoir to the article of clothing.

First claim

Opening claim text (preview).

What is claimed is: 1. A washing machine appliance defining a vertical, a lateral, and a transverse direction, the washing machine appliance comprising: a cabinet including a top panel; and a pretreatment assembly positioned proximate the top panel, the pretreatment assembly comprising: a detergent reservoir defining an aperture and being configured for receiving a fluid additive; a ball socket positioned at least partially within the aperture, the ball socket comprising one or more small resilient members positioned inside the ball socket; and a roller ball applicator rotatably mounted within the ball socket and being at least partially in contact with the fluid additive within the detergent reservoir, wherein the one or more small resilient members extend toward and contact the roller ball applicator. 2. The washing machine appliance of claim 1 , wherein the ball socket is spring-loaded against a top wall of the detergent reservoir. 3. The washing machine appliance of claim 1 , wherein the pretreatment assembly comprises two or more ball sockets, each of the ball sockets having a roller ball applicator rotatably mounted therein. 4. The washing machine appliance of claim 1 , wherein a gap is defined between the ball socket and the roller ball applicator, a size of the gap being selected to generate some rolling resistance between the roller ball applicator and the ball socket. 5. The washing machine appliance of claim 1 , wherein the roller ball applicator is a spherical ball defining a plurality of dimples. 6. The washing machine appliance of claim 1 , wherein the ball socket comprises a spherical flange extending around a circumference of the roller ball applicator to retain the roller ball applicator. 7. The washing machine appliance of claim 1 , wherein the ball socket is attached to a removable applicator, the removable applicator being inserted through the aperture in the detergent reservoir for inserting the ball socket into the detergent reservoir such that the roller ball applicator is positioned entirely within the detergent reservoir. 8. The washing machine appliance of claim 7 , wherein the removable applicator defines a hand grip for facilitating application of the fluid additive from the detergent reservoir. 9. The washing machine appliance of claim 1 , wherein the detergent reservoir is positioned below the top panel along the vertical direction, the top panel defining the aperture through which the roller ball applicator may extends partially above the top panel along the vertical direction. 10. The washing machine appliance of claim 1 , wherein the detergent reservoir is defined at least in part by the top panel. 11. The washing machine appliance of claim 1 , wherein the ball socket is defined by the detergent reservoir. 12. The washing machine appliance of claim 1 , wherein the top panel and the detergent reservoir define a loading port adjacent the aperture in the detergent reservoir for receiving fluid additive into the detergent reservoir. 13. The washing machine appliance of claim 1 , wherein the detergent reservoir defines a reservoir height and the roller ball applicator defines a ball diameter, the ball diameter being greater than the reservoir height. 14. A pretreatment assembly comprising: a detergent reservoir defining an aperture and being configured for receiving a fluid additive; a ball socket positioned at least partially within the aperture, the ball socket comprising one or more small resilient members positioned inside the ball socket; and a roller ball applicator rotatably mounted within the ball socket and being at least partially in contact with the fluid additive within the detergent reservoir, wherein the one or more small resilient members extend toward and contact the roller ball applicator. 15. The pretreatment assembly of claim 14 , wherein the ball socket is spring-loaded against a top wall of the detergent reservoir. 16. The pretreatment assembly of claim 14 , wherein the pretreatment assembly comprises two or more ball sockets, each of the ball sockets having a roller ball applicator rotatably mounted therein. 17. The pretreatment assembly of claim 14 , wherein the ball socket comprises a spherical flange extending around a circumference of the roller ball applicator to retain the roller ball applicator. 18. The pretreatment assembly of claim 14 , wherein the ball socket is attached to a removable applicator, the removable applicator being inserted through the aperture in the detergent reservoir for inserting the ball socket into the detergent reservoir such that the roller ball applicator is positioned entirely within the detergent reservoir. 19. The pretreatment assembly of claim 18 , wherein the removable applicator defines a hand grip for facilitating application of the fluid additive from the detergent reservoir. 20. The pretreatment assembly of claim 14 , wherein the detergent reservoir defines a reservoir height and the roller ball applicator defines a ball diameter, the ball diameter being greater than the reservoir height.

Assignees

Inventors

Classifications

  • Hand rubbers, e.g. gloves with corrugated surfaces · CPC title

  • in a liquid state (D06F39/024 takes precedence) · CPC title

  • adapted for rotation or oscillation about a vertical axis · CPC title

  • and rotating or oscillating about a vertical axis · CPC title

  • Textiles & Paper · mapped topic

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US10344423B2 cover?
A washing machine appliance includes a pretreatment assembly positioned proximate a top panel of the washing machine appliance for spot treating articles of clothing prior to a wash cycle. The pretreatment assembly includes a detergent reservoir defining an aperture and being configured for receiving a fluid additive. A ball socket is positioned at least partially within the aperture and a roll…
Who is the assignee on this patent?
Haier Us Appliance Solutions Inc
What technology area does this patent fall under?
Primary CPC classification D06F43/002. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Jul 09 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).