Powder metal hub and treatment

US9759304B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9759304-B2
Application numberUS-201514607304-A
CountryUS
Kind codeB2
Filing dateJan 28, 2015
Priority dateJan 28, 2015
Publication dateSep 12, 2017
Grant dateSep 12, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method of making a worm gear is provided. The method comprises forming a gear hub from a powdered metal material. Thereafter an outer surface of the gear hub is sealed.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of making a worm gear comprising: forming a gear hub from a porous material; and sealing an outer surface of the gear hub; and exposing the outer surface to a silane solution after sealing the outer surface. 2. The method of claim 1 , wherein sealing is performed by oxidizing the outer surface of the gear hub. 3. The method of claim 1 , wherein sealing is performed by impregnating the outer surface of the gear hub with a resin. 4. The method of claim 1 , further comprising hobbing a plurality of teeth along an outer circumferential edge of the gear hub. 5. The method of claim 1 , further comprising forming or placing a polymeric ring overlaying a portion of the gear hub. 6. The method of claim 1 , wherein the porous material is a powdered metal material. 7. The method of claim 6 , further comprising pressing the powdered metal material to form the gear hub. 8. The method of claim 7 , further comprising sintering the powdered metal material to form the gear hub. 9. The method of claim 8 , wherein sealing is performed by steam treating the outer surface of the gear hub.

Assignees

Inventors

Classifications

  • Features relating to lubrication or cooling {or heating} (control of lubrication or cooling in hydrostatic gearing F16H61/4165) · CPC title

  • Compacting only · CPC title

  • characterised by constructional features, e.g. common housing for motor and gear box · CPC title

  • F16H55/06Primary

    Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties · CPC title

  • Coatings or solid lubricants, e.g. anti-seize layers or pastes · CPC title

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Frequently asked questions

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What does patent US9759304B2 cover?
A method of making a worm gear is provided. The method comprises forming a gear hub from a powdered metal material. Thereafter an outer surface of the gear hub is sealed.
Who is the assignee on this patent?
Turek Alan G, Beyerlein Jeffrey E, Von Matt Niklaus A, and 1 more
What technology area does this patent fall under?
Primary CPC classification F16H55/06. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Sep 12 2017 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).