公开(公告)号：US20210178388A1

公开(公告)日：2021-06-17

申请号：US17118861

申请日：2020-12-11

Applicant: TTP Plc

Inventor： Piers Sebastian Harding ,  Gary Keith Jepps

IPC: B01L3/00 ,  B01L3/02

Abstract: There is provided a sample preparation device comprising a sample preparation vessel and a bead manipulation mechanism for manipulating sample preparation beads in the vessel. The bead manipulation mechanism comprises: one or more magnets arranged to produce a magnetic field for manipulating, in use, one or more beads in the vessel. Each magnet is attached to a support frame by a biasing support arranged to support the magnet in contact against an outer surface of the vessel such that the magnet maintains contact with the vessel during relative movement between the magnets and the vessel.

公开(公告)号：US11035828B2

公开(公告)日：2021-06-15

申请号：US16500731

申请日：2018-04-11

Applicant: TTP Plc

Inventor： Harry Bullivant ,  Adam Jackson ,  Justin Buckland

IPC: G01N29/22 ,  G01N29/036 ,  G01N29/24 ,  G01N29/28

Abstract: An acoustic sensor, comprising: a side wall, closed by first and second end walls to form a substantially cylindrical cavity for containing a fluid, wherein a radius, a, of the cavity and an axial height, h, of the cavity satisfies the inequality a/h is greater than 1.2; a transmitter, operatively associated with one of the first and second end walls; a receiver, operatively associated with the other of the first and second end walls; and a first stiffener plate, comprising an outer peripheral edge and an aperture which defines an inner peripheral edge, and located on an outer face of the first end wall such that the aperture overlies the axis of the cavity; wherein: the first end wall comprises at least one through-hole, located radially of the axis of the cavity between the inner and outer peripheral edges of the first stiffener plate; the first stiffener plate comprises at least one duct, which connects the at least one through-hole, of the first end wall, to at least one of the inner and outer peripheral edges of the first stiffener plate, thereby to provide at least one fluid passageway between the cavity and the external surroundings of the acoustic sensor via the first end wall; and in use: the transmitter causes oscillatory motion, of the one of the first and second end walls with which the transmitter is associated, in a direction substantially perpendicular to the plane of that end wall, such that axial oscillations of that end wall drive substantially radial oscillations of a fluid pressure in the cavity; and the substantially radial oscillations in the pressure of the fluid drive oscillatory motion of the other of the first and second end walls, with which the receiver is associated, generating an electrical signal.

公开(公告)号：US20210075628A1

公开(公告)日：2021-03-11

申请号：US16772434

申请日：2018-12-12

Applicant: TTP Plc

Inventor： Edward Leigh BEAN ,  Gaishun SERGEY

IPC: H04L9/32 ,  G06F21/75

Abstract: A physically unclonable function (PUF) device comprises a plurality of conductors, at least some of which are arranged so that they interact electrically and/or magnetically with one another. A media surrounds at least a portion of each of the conductors, and circuitry applies an electrical challenge signal to at least one of the conductors and for receiving an electrical output from at least one of the other conductors to generate an identifying response to the challenge signal that is unique to the device.

公开(公告)号：US10929742B2

公开(公告)日：2021-02-23

申请号：US16310255

申请日：2017-06-14

Applicant: TTP Plc

Inventor： Daniel Strange ,  Lawrence Baker

IPC: G06M3/02 ,  G06M1/06

Abstract: A counting mechanism (100) for a dispenser comprising: a first and a second housing part (110, 120) that are rotatable relative to each other; and a counting ring (130) disposed between the housing parts. The first housing part has a protrusion (111) which abuts the counting ring, holding a portion of the counting ring in contact with the second housing part. The relative rotation of the housing parts causes the protrusion to slide against the surface of the counting ring to drive a rolling movement of the counting ring around the circumference of the second housing part, such that a predefined rotation of the housing parts produces an incremental rotational displacement between the counting ring and second housing part to record a count. The counting mechanism provides a large gear reduction ratio in a compact form which is straightforward to manufacture and provides an accurate and reliable record of counts.

公开(公告)号：US20180125743A1

公开(公告)日：2018-05-10

申请号：US15803730

申请日：2017-11-03

Applicant: SOMMETRICS, INC. ,  TTP PLC.

Inventor： Jerome K. AARESTAD ,  Stephen MAINE ,  Thomas John HARRISON

IPC: A61H9/00

CPC classification number: A61H9/0057 ,  A61H2201/0173 ,  A61H2201/0188 ,  A61H2201/1604 ,  A61H2201/1609 ,  A61H2201/5035 ,  A61H2201/5038 ,  A61H2201/5071 ,  A61H2201/5079 ,  A61H2201/5082 ,  A61H2201/5084

Abstract: The present invention provides a device with a pressure control system and methods for controlling the application of negative pressure to an external surface of an individual for creating and/or maintaining patency of the upper airway passage. The device is configured to fit under the chin of a subject at an external location corresponding approximately with the subject's internal soft tissue associated with the neck's anterior triangle. The pressure control system contains control module elements that may include circuit board elements, digital output barometer elements, sensor elements, processing elements and memory elements to optimize device function and safety of the device through regulation of the flow rate of the air pump.