Input shaft lubrication for gear pump

US8992192B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8992192-B2
Application numberUS-201113034965-A
CountryUS
Kind codeB2
Filing dateFeb 25, 2011
Priority dateFeb 25, 2011
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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 shaft assembly includes a gear with a gear bore having a splined bore section adjacent to an oil dam. A shaft includes a first splined end section and a second splined end section, the first splined end section engageable with the splined inner diameter, the shaft having a bore with a bore diameter greater than a diameter of the oil dam, a first set of radial apertures axially inboard of the first splined end section in communication with the shaft inner bore and a second set of radial apertures axially inboard of the second splined end section in communication with the shaft inner bore that altogether provide lubrication of the splined end sections.

First claim

Opening claim text (preview).

What is claimed is: 1. A shaft assembly comprising: a gear rotatable about an axis, said gear including a gear bore having a splined bore section and an oil dam, said oil dam including a shoulder extending radially inwardly from said gear bore such that said shoulder forms an inner aperture along said axis, said inner aperture having an aperture diameter; and a shaft with a first splined end section engageable with said splined bore section such that there is a reservoir axially…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

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

What does patent US8992192B2 cover?
A shaft assembly includes a gear with a gear bore having a splined bore section adjacent to an oil dam. A shaft includes a first splined end section and a second splined end section, the first splined end section engageable with the splined inner diameter, the shaft having a bore with a bore diameter greater than a diameter of the oil dam, a first set of radial apertures axially inboard of the …
Who is the assignee on this patent?
Shah Satish Shantilal, Blewett Michael R, Walgren Timothy P, and 2 more
What technology area does this patent fall under?
Primary CPC classification F04C2/14. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 31 2015 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).