Developing cartridge including developing coupling, and image forming apparatus including main body coupling connectable to developing coupling
US-2019004472-A1 · Jan 3, 2019 · US
Cardan joint spider
US11739797B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11739797-B2 |
| Application number | US-201816529032-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 1, 2018 |
| Priority date | Feb 3, 2017 |
| Publication date | Aug 29, 2023 |
| Grant date | Aug 29, 2023 |
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- Title
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- Abstract
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A cardan joint spider comprising a body having four right-angled brackets, each bracket presenting two mutually perpendicular arms, the arm of one bracket being assembled to the arm of an adjacent bracket so as to form a cross-shaped spider having four branches.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cardan joint spider comprising a body having four right-angled brackets, each bracket presenting two mutually perpendicular arms, an arm of one bracket being assembled to an arm of an adjacent bracket so as to form a cross-shaped spider having four branches the body including at least four stiffeners, a stiffener being mounted between the two arms of each bracket, wherein each stiffener is fastened to each arm of a bracket by means of at least two bolts. 2. The spider according to claim 1 , wherein two adjacent brackets are assembled together by the at least two bolts. 3. The spider according to claim 1 , wherein a distance between the at least two bolts through a given arm is greater than or equal to 30% of the length of the arm. 4. The spider according to claim 1 , including four shafts, each branch of the spider carrying a respective shaft mounted between two arms of two adjacent brackets. 5. The spider according to claim 4 , wherein each arm of each bracket includes a portion configured to receive a shaft in part. 6. The spider according to claim 5 , wherein the body has eight stiffeners, with two stiffeners being fastened to each bracket on respective sides, with respect to the axial direction of the shaft, of the portion configured to receive a shaft in part. 7. The spider according to claim 1 , wherein each bracket is made of folded sheet metal. 8. A rocket engine including at least one cardan joint spider according to claim 1 .
Assignees
Inventors
Classifications
- F16D3/40Primary
with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes · CPC title
Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof · CPC title
Mounting on supporting structures or systems · CPC title
Mounting or assembling · CPC title
Crossed rods · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11739797B2 cover?
- A cardan joint spider comprising a body having four right-angled brackets, each bracket presenting two mutually perpendicular arms, the arm of one bracket being assembled to the arm of an adjacent bracket so as to form a cross-shaped spider having four branches.
- Who is the assignee on this patent?
- Arianegroup Sas
- What technology area does this patent fall under?
- Primary CPC classification F16D3/40. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 29 2023 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).