US 11,441,582 B2Granted

Tensile actuator

OwnerAlexander Sergeevinventor

Life of this patent

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Abstract

A method is disclosed wherein two sheets of a flexible, inelastic substance are sealed along a periphery thereof, creating an interior reservoir preferably containing two or more elongate chambers, organized normal to an axis of traction. The disclosed axis of traction is an axis along which the disclosed device reduces length as a medium is introduced into the reservoir. Further disclosed is a method by which one or more bladders of flexible, inelastic substance are woven through two or more preferably parallel strips or strings. The bladders are adapted to receive a preferably gaseous or liquid medium. As the medium is moved into the bladders, the flexible strips or stings are deformed to cause the strips or strings to have a reduced length along the axis of traction.

Claims18

Dependent claims

An apparatus comprising:

a tensile element, the tensile element substantively inelastic along a traction axis, the tensile element comprising at least two substantively inelastic elongate strands (“strands”) and each strand having a first end and a second end, at least one strand of the at least two strands comprising a first strand end and a second strand end, wherein the first strand end is coupled to a first object and the second strand end is coupled to a second object;
the first object coupled with the tensile element first end;
the second object coupled with the tensile element second end;
and
an expandable means coupled with the tensile element, the expandable means adapted to expand and thereby deliver a force to the tensile element, the force initially being normal to the traction axis, whereby the force is transferred from the expandable means to the tensile element and causes the tensile element to pull the first object and the second object together along the traction axis.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/175,642Filed 13 Feb 2021 · continuation
Priority: 8 May 2016
Published: US 2021/0215174 A115 Jul 2021
Granted: 13 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

F15B 15/103
The motor being of diaphragm type: using inflatable bodies that contract when fluid pressure is applied, e.g. pneumatic artificial muscles or…
F15B 2215/30
Fluid-actuated devices for displacing a member from one position to another: constructional details thereof
F15B
Systems acting by means of fluids in general

Family

Application15/149,167Parent of this continuation-in-part · filed 8 May 2016
Application62/456,946Us provisional application · filed 9 Feb 2017
Application15/888,004Parent of this continuation · filed 3 Feb 2018
US 10,422,359 B2Parent of this continuation-in-part · filed 24 Sep 2019
US 2021/0215174 A1Pre-grant publication · published 15 Jul 2021
US 10,920,800 B2Parent of this continuation
Application15/888,004Parent of this continuation-in-part
US 2017/0037878 A1Published application
US 2018/0372132 A1Published application
US 11,441,582 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

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