Hybrid actuation device including fluidly cooled SMA wires
US-11536255-B1 · Dec 27, 2022 · US
Robotic grabber and method of use
US8950795B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8950795-B2 |
| Application number | US-201313863634-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2013 |
| Priority date | Apr 16, 2013 |
| Publication date | Feb 10, 2015 |
| Grant date | Feb 10, 2015 |
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Abstract
Official abstract text for this publication.
A robotic finger includes a shape-memory alloy and a shape-memory polymer connected to and adjacent to the shape-memory alloy. Heating the shape-memory polymer causes it to soften, heating the shape-memory alloy causes the alloy to bend in the direction of the shape-memory polymer to press the shape-memory polymer against an object to be grasped, and cooling the shape-memory polymer causes it to stiffen and to retain its shape. An opposing member is positioned to cooperate with the finger to grasp an object positioned between the finger and the opposing member. A selectively controllable heat source is capable of applying heat to the finger.
First claim
Opening claim text (preview).
What is claimed is: 1. A robotic finger, comprising a shape-memory polymer that is relatively pliable at a first temperature and is relatively stiff at a second temperature that is lower than the first temperature; a shape-memory alloy connected to the shape-memory polymer that has a first shape at a third temperature and moves to assume a second shape at a fourth temperature that is higher than the third temperature; at least one heating element that can apply heat to the sha…
Assignees
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- B25J9/1085Primary
Operations & Transport · mapped topic
Cross-Sectional Technologies · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8950795B2 cover?
- A robotic finger includes a shape-memory alloy and a shape-memory polymer connected to and adjacent to the shape-memory alloy. Heating the shape-memory polymer causes it to soften, heating the shape-memory alloy causes the alloy to bend in the direction of the shape-memory polymer to press the shape-memory polymer against an object to be grasped, and cooling the shape-memory polymer causes it t…
- Who is the assignee on this patent?
- Raytheon Co
- What technology area does this patent fall under?
- Primary CPC classification B25J9/1085. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 10 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).