Washer-equipped screw
US-2018058489-A1 · Mar 1, 2018 · US
Washer-equipped screw
US10544820B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10544820-B2 |
| Application number | US-201715687867-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 28, 2017 |
| Priority date | Aug 26, 2016 |
| Publication date | Jan 28, 2020 |
| Grant date | Jan 28, 2020 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A washer-equipped screw is provided with a screw body, a flat washer, and a rubber washer. The screw body includes a cylindrical portion between a shaft portion on which a screw groove is formed and a head portion. A hole in the flat washer is inserted through the cylindrical portion so as to be adjacent to the head portion. A hole in the rubber washer is inserted through the cylindrical portion and positioned on a shaft portion side of the flat washer. The cylindrical portion is provided with a projection for engagingly locking the flat washer. An inner edge of the flat washer is caught by the projection, whereby the flat washer is prevented from detaching.
First claim
Opening claim text (preview).
What is claimed is: 1. A washer-equipped screw comprising: a screw body having a cylindrical portion disposed between a shaft portion on which a screw thread is formed and a head portion; a flat washer having a flat washer hole that has the cylindrical portion inserted therein, the flat washer disposed so as to be adjacent to the head portion; and a rubber washer having a rubber washer hole that has the cylindrical portion inserted therein, the rubber washer positioned on a shaft portion side of the flat washer, wherein: a projection for directly engagingly locking the flat washer is disposed on the cylindrical portion, and between the flat washer and the rubber washer, and a groove into which the rubber washer is fitted is disposed on the cylindrical portion.
Assignees
Inventors
Classifications
- F16B35/048Primary
Specially-shaped necks (F16B35/06 takes precedence) · CPC title
Measures against loss of bolts, nuts or pins (devices for fastening nuts to surfaces F16B37/04) · CPC title
for sealing or insulation · CPC title
by means of washers, spring washers, or resilient plates that lock against the object (locking to the screw-thread F16B39/14 {, F16B39/34}, F16B39/36) · CPC title
- F16B39/282Primary
Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts · CPC title
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 US10544820B2 cover?
- A washer-equipped screw is provided with a screw body, a flat washer, and a rubber washer. The screw body includes a cylindrical portion between a shaft portion on which a screw groove is formed and a head portion. A hole in the flat washer is inserted through the cylindrical portion so as to be adjacent to the head portion. A hole in the rubber washer is inserted through the cylindrical portio…
- Who is the assignee on this patent?
- Denso Corp
- What technology area does this patent fall under?
- Primary CPC classification F16B35/048. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 28 2020 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).