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    • 4. 发明授权
    • Hanging door stop
    • US11332967B2
    • 2022-05-17
    • US17050496
    • 2019-04-17
    • Pulathis Nilantha Siriwardana
    • Pulathis Nilantha Siriwardana
    • E05F5/02E05F5/04
    • A door stop (2) which comprises: (i) a hanger part (4); and (ii) a door stop part (6) which in use hangs from the hanger part (4), the door stop part (6) being such that is comprises: (iii) a first door stop formation (8) for being positioned at a hinge side (10) of a door (12), and in a gap (14) between the door (12) and a door frame (16) for the door (12); and (iv) a second door stop formation (18) for being positioned at the hinge side (10) of the door (12), and in the gap (14) between the door (12) and the door frame (16) for the door (12), and wherein: (v) the first door stop formation (8) is below the second door stop formation (18) when the door stop part (6) hangs from the hanger part (4); (vi) the first door stop formation (8) is of a first door-stopping size which stops the door (12) in a first open position at a first open angle; (vii) the second door stop formation (18) is of a second door-stopping size which stops the door (12) in a second open position at a second open angle; (viii) the first open angle is larger than the second open angle; (ix) the first open position is for use by an adult; (x) the second open position is for use by a child; (xi) the first open position is such as to cause the gap to be of a first size; (xii) the second open position is such as to cause the gap to be of a second size; and (xiii) the gap of the first size and the gap of the second size are both such that the child cannot get their fingers trapped firstly between the door (12) and the door frame (16) at the hinge side (10) of the door (12), and secondly between the door (12) and the door frame (16) at a handle side of the door (12).
    • 6. 发明授权
    • Apparatus for testing a liquid specimen
    • US11161117B2
    • 2021-11-02
    • US15513071
    • 2015-10-10
    • Clever Medical Limited
    • Oliver Blackwell
    • B01L3/00A61B10/00
    • Apparatus (2) for testing a liquid specimen, which apparatus (2) comprises: (i) a container (4) for the liquid specimen; (ii) a lid (6) for closing the container (4) after the liquid specimen has been provided in the container (4); (iii) first securing means (8) by which the lid (6) is secured to the container (4); (iv) a test capsule (10) for securing to the lid (6) when the lid (6) is on the container (4); (v) second securing means (12) by which the test capsule (10) is secured to the lid (6); and (vi) a response chart (14) which is operable in response to contact with the liquid specimen, and the apparatus (2) being such that: (vii) the lid has an openable portion (18) which when opened permits a liquid specimen in the container (4) to enter the test capsule (10); (viii) the test capsule (10) has opener means (20) for opening the openable portion on the lid (6) when the test capsule (10) is secured to the lid (6); and (ix) the response chart (14) is inside the test capsule (10) and is contacted by the liquid specimen when the liquid specimen enters the test capsule (10).
    • 8. 发明授权
    • Apparatus and method for optical isolation
    • US11050209B2
    • 2021-06-29
    • US16480779
    • 2018-01-26
    • SPI Lasers UK Limited
    • Malcolm Paul Varnham
    • G02B6/14G02B6/42H01S3/00G02B6/02
    • Apparatus for optically isolating a laser (1) from external reflections, which apparatus comprises a mode filter (19) and a first optical fibre (1), wherein: the first optical fibre (1) is a multimode optical fibre that supports a fundamental mode (3) and at least one higher order mode (4); the mode filter (19) is defined by an optical attenuation which is higher for the higher order mode (4) than for the fundamental mode (3); the mode filter (19) is configured to pass the fundamental mode (3) into the first optical fibre (1); and the apparatus being characterized in that: the first optical fibre (1) comprises a long period grating (10); and the long period grating (10) is defined by a period (13) selected to couple the fundamental mode (3) to the higher order mode (4) of the first optical fibre (1); whereby if the fundamental mode (3) and the higher order mode (4) are reflected back into the first optical fibre (1) as back-reflected fundamental and higher order modes (25), (26), then the mode filter (19) optically attenuates the back-reflected higher order mode (26) more than the back-reflected fundamental mode (25) thereby isolating the external reflection.