Patents by Inventor Lenore Rasmussen

Lenore Rasmussen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11005027
    Abstract: This invention describes a method for producing highly controllable motion in electroactive materials and electroactive actuators capable of pronounced contraction and expansion, which act as synthetic muscle, tendon, fascia, perimysium, epimysium, and skin that wrinkles, comprising ion-containing, cross-linked electroactive material(s); solvent(s); electrode(s); attachments to levers or other objects; and coating(s). Restriction of movement in undesired direction(s) produces pronounced movement in the desired direction(s). The electroactive material itself or the electroactive actuator may be used individually or grouped to produce movement when activated by electricity. This invention can provide for human-like motion, durability, toughness, speed, and strength. The electroactive materials and electroactive actuators, with highly controllable motion, can be attached to objects and devices to produce motion with no metal pulleys, gears, or motors needed.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 11, 2021
    Inventor: Lenore Rasmussen
  • Publication number: 20200179141
    Abstract: In one aspect, novel robust electroactive polymers (EAPs) is described, which contract and expand at low voltages to provide for a shape-morphing system, e.g., a prosthetic liner, and potentially entire prosthetic socket, to contract and expand in strategic areas as needed to maintain a comfortable and good fit throughout the day. In some embodiments, as the residual limb changes, these novel robust EAPs can change dynamically as needed to maintain a comfortable, snug fit of the prosthetic liner or socket with the hard shell of the prosthetic socket device. In some embodiments, the EAPs used in prosthetic liners or sockets can also be used to detect pressure as the device is being used, and automatically adjust to maintain fit through a control unit, so that the patient does not even have to stop and adjust his or her device as he or she goes about an active day.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 11, 2020
    Inventors: Lenore RASMUSSEN, Eric SANDBERG, Simone RODRIGUEZ
  • Patent number: 10603191
    Abstract: In one aspect, novel robust electroactive polymers (EAPs) is described, which contract and expand at low voltages to provide for a shape-morphing system, e.g., a prosthetic liner, and potentially entire prosthetic socket, to contract and expand in strategic areas as needed to maintain a comfortable and good fit throughout the day. In some embodiments, as the residual limb changes, these novel robust EAPs can change dynamically as needed to maintain a comfortable, snug fit of the prosthetic liner or socket with the hard shell of the prosthetic socket device. In some embodiments, the EAPs used in prosthetic liners or sockets can also be used to detect pressure as the device is being used, and automatically adjust to maintain fit through a control unit, so that the patient does not even have to stop and adjust his or her device as he or she goes about an active day.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: March 31, 2020
    Assignee: RAS LABS, INC.
    Inventors: Lenore Rasmussen, Eric Sandberg, Simone Rodriguez
  • Publication number: 20190290456
    Abstract: Novel robust electroactive polymers (EAPs) and EAP-based systems are described, which contract and expand at low voltages to provide for a shape-morphing system, which also sense mechanical pressure, from gentle touch to high impact, and which attenuate force. These EAPs and EAP-based systems can be used in a prosthetic liner, and potentially as the entire prosthetic liner, in a prosthetic hard socket, in shoe wear, sports gear, protective gear, and military gear, and in compression equipment, to contract and expand in strategic areas as needed to maintain a perfect fit, to sense pressure and provide feedback to automatically maintain perfect fit, and to attenuate force for an extremely comfortable fit.
    Type: Application
    Filed: June 23, 2017
    Publication date: September 26, 2019
    Inventors: Lenore RASMUSSEN, Leila ALBERS, Simone RODRIGUEZ
  • Publication number: 20180040804
    Abstract: This invention describes a method for producing highly controllable motion in electroactive materials and electroactive actuators capable of pronounced contraction and expansion, which act as synthetic muscle, tendon, fascia, perimysium, epimysium, and skin that wrinkles, comprising ion-containing, cross-linked electroactive material(s); solvent(s); electrode(s); attachments to levers or other objects; and coating(s). Restriction of movement in undesired direction(s) produces pronounced movement in the desired direction(s). The electroactive material itself or the electroactive actuator may be used individually or grouped to produce movement when activated by electricity. This invention can provide for human-like motion, durability, toughness, speed, and strength. The electroactive materials and electroactive actuators, with highly controllable motion, can be attached to objects and devices to produce motion with no metal pulleys, gears, or motors needed.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 8, 2018
    Inventor: Lenore RASMUSSEN
  • Patent number: 9853202
    Abstract: This invention describes a method for producing highly controllable motion in electroactive materials and electroactive actuators capable of pronounced contraction and expansion, which act as synthetic muscle, tendon, fascia, perimysium, epimysium, and skin that wrinkles, comprising ion-containing, cross-linked electroactive material(s); solvent(s); electrode(s); attachments to levers or other objects; and coating(s). Restriction of movement in undesired direction(s) produces pronounced movement in the desired direction(s). The electroactive material itself or the electroactive actuator may be used individually or grouped to produce movement when activated by electricity. This invention can provide for human-like motion, durability, toughness, speed, and strength. The electroactive materials and electroactive actuators, with highly controllable motion, can be attached to objects and devices to produce motion with no metal pulleys, gears, or motors needed.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: December 26, 2017
    Assignee: RAS Labs, Inc.
    Inventor: Lenore Rasmussen
  • Publication number: 20170333223
    Abstract: In one aspect, novel robust electroactive polymers (EAPs) is described, which contract and expand at low voltages to provide for a shape-morphing system, e.g., a prosthetic liner, and potentially entire prosthetic socket, to contract and expand in strategic areas as needed to maintain a comfortable and good fit throughout the day. In some embodiments, as the residual limb changes, these novel robust EAPs can change dynamically as needed to maintain a comfortable, snug fit of the prosthetic liner or socket with the hard shell of the prosthetic socket device. In some embodiments, the EAPs used in prosthetic liners or sockets can also be used to detect pressure as the device is being used, and automatically adjust to maintain fit through a control unit, so that the patient does not even have to stop and adjust his or her device as he or she goes about an active day.
    Type: Application
    Filed: November 4, 2015
    Publication date: November 23, 2017
    Inventors: Lenore RASMUSSEN, Eric SANDBERG, Simone RODRIGUEZ
  • Patent number: 9755135
    Abstract: This invention describes a method for producing a novel, superior, highly electroactive material and highly electroactive actuator, which act as artificial muscle, tendon, fascia, perimysium, epimysium, and skin that wrinkles and with the preferred movement of contraction, comprising ion-containing, cross-linked electroactive material(s); solvent(s); electrode(s); attachments to levers or other objects; and coating(s). The composition and electrode configuration of the highly electroactive material of the highly electroactive actuator can be optimized so that contraction occurs when activated by electricity, and when allowed to relax back to its original conformation or when the polarity of the electrodes is reversed, expansion occurs, and a combination of these movements can be arranged, such as antagonistic pairs. The highly electroactive material itself or the highly electroactive actuator may be used individually or grouped to produce movement when activated by electricity.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 5, 2017
    Assignee: RAS Labs, LLC
    Inventor: Lenore Rasmussen
  • Publication number: 20160064643
    Abstract: This invention describes a method for producing highly controllable motion in electroactive materials and electroactive actuators capable of pronounced contraction and expansion, which act as synthetic muscle, tendon, fascia, perimysium, epimysium, and skin that wrinkles, comprising ion-containing, cross-linked electroactive material(s); solvent(s); electrode(s); attachments to levers or other objects; and coating(s). Restriction of movement in undesired direction(s) produces pronounced movement in the desired direction(s). The electroactive material itself or the electroactive actuator may be used individually or grouped to produce movement when activated by electricity. This invention can provide for human-like motion, durability, toughness, speed, and strength. The electroactive materials and electroactive actuators, with highly controllable motion, can be attached to objects and devices to produce motion with no metal pulleys, gears, or motors needed.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 3, 2016
    Inventor: Lenore Rasmussen
  • Patent number: 8088453
    Abstract: This invention describes a method for producing a novel, superior electroactive material and electroactive actuator, which act as artificial muscle, tendon, fascia, perimysium, epimysium, and skin that wrinkles and with the preferred movement of contraction, comprising ion-containing, cross-linked electroactive material(s); solvent(s); electrolyte(s); plasma treated electrode(s); attachments to levers or other objects; and coating(s). The composition and electrode configuration of the electroactive material of the electroactive actuator can be optimized so that contraction occurs when activated by electricity, when allowed to relax back to its original conformation, when the polarity of the electrodes is reversed, or a combination of these movements, such as antagonistic pairs. The electroactive material itself or the electroactive actuator may be used individually or grouped to produce movement when activated by electricity.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: January 3, 2012
    Inventor: Lenore Rasmussen
  • Patent number: 7935743
    Abstract: This invention describes an electrically driven mechanochemical actuator comprising an electroactive material capable of converting electrical to mechanical energy in communication with a first electrode and a second electrode, the electroactive material immersed in an electrolyte, the electroactive material and electrolyte surrounded by a flexible encapsulating coating, wherein a portion of the first electrode and a portion of the second electrode penetrate there through.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: May 3, 2011
    Inventor: Lenore Rasmussen
  • Patent number: 5736590
    Abstract: A process for producing an electrically driven mechanochemical actuator comprising:(a) immersing a mixture of poly(2-hydroxethyl methacrylate) and poly(methacrylic acid) crosslinked with 1,1,1-trimethylol propane trimethacrylate and ethylene glycol dimethacrylate into an aqueous polyelectrolyte solution to form a hydrogel;(b) applying an electrical field to the hydrogel sufficient to provide buckling, rippling, and contraction of the hydrogel;(c) terminating application of the electrical field and allowing the hydrogel to relax and return to its original shape;(d) reapplying the electrical field to the hydrogel sufficient to provide buckling, rippling, and contraction of the hydrogel.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: April 7, 1998
    Inventor: Lenore Rasmussen