Bjerkén Hynell KB

Provided are a conference system integrating video, voice and remote collaboration, and a method of operating the conference system. A conference peripheral includes a video acquisition device, an audio acquisition device, and an audio playback device. The conference peripheral is connected to a receiving unit through a cable or in a wireless manner, the receiving unit communicates with a user computer through a communication network, and a client software is configured to achieve data sharing, data conversion, conference control and remote collaboration between the receiving unit and a USB peripheral, and the USB peripheral is connected to a USB port of the user computer and communicates with the client software. During communication, received and transmitted data streams, after being converted into UVC and UAC protocols by the USB peripheral device, are provided to the user computer through a UVC interface and a UAC interface, respectively.

The invention relates to a hot-wire cutting apparatus (1) for cutting a thermoplastic workpiece (W) such as a polystyrene foam block. The hot-wire cutting apparatus (1) comprises a support structure (10), a cutting head (20) arranged to protrude from the support structure (10) and comprising a first wire holder (22) adapted for attachment of a first end (32) of a wire (30) and a second wire holder (24) adapted for attachment of a second end (34) of the wire (30). The hot-wire cutting apparatus (1) comprises a cutting head motor (12) for moving the cutting head (20) along the support structure (10), and a holder motor (26) for moving at least one of said wire holders (22, 24) along the cutting head (20). The hot-wire cutting apparatus (1) is configured to displace at least one of the first or second wire holders (22, 24) towards the other to facilitate an attachment of the wire (30).

The invention relates to an cooling arrangement for cooling of a cooling space (CS) within an object (VP), comprising a thermosiphon loop (20, 4, 30, 5) having a cooling fluid in operational connection with an evaporator (2) and a condenser (3), wherein a cooling media (31), in cooling tank (32) of said condenser (3) is arranged to absorb heat from said cooling media, which cooling media in turn absorbs heat from air (G1) flowing through said evaporator (2) to provide a cooled air flow (G2) by means of a fan (6) out from said evaporator (2) in said cooling space (CS), wherein said cooling media (31) at least partly includes ice and that said cooling media (31) is arranged to drive said thermosiphon loop (20, 4, 30, 5) and wherein said condenser (3) is also connected to a cooling producing circuit (7) comprising a low pressure part (72) arranged within said cooling tank (32) to produce cooling energy to said cooling media (31), said cooling producing circuit (7) also comprising a high pressure part (71) and a compressor (74) arranged outside of said cooling space (CS)

This invention relates to a method of computer-aided design of construction comprising the steps of: a) Input of building system specific data for a planned construction into a design program b) Input of project-specific data regarding building geometry into the design program, c) Calculation and production of visual presentation of building frame in the design program, d) Iteration of step c) until a desired target image is achieved for the frame material of said building frame, e) production of frame materials for the building frame and cutting lists for the frame in the design program, wherein automation may be achieved.

This invention relates to a pontoon unit (2) for use in a lake, pool or corresponding water area, preferably interconnected with one or more other pontoon units (2) to form a pontoon (2), comprising a buoyancy body (20) and an upwardly facing support surface (2A) for carrying a load, wherein said pontoon unit (2) is circumferentially enclosed by an attachment base (3) that is integrated with the pontoon unit (2) by means of a covering flexible layer (22), wherein said attachment base (3) comprises a plurality of interconnected base members (3A, 3B), each comprising an attachment face (340, 341) arranged to attach connecting member/s (40, 41, 43, 44) for connecting two neighboring pontoon units (2) to each other, wherein at least one of said frame members (3A, 3B) includes an attachment structure (300) having two parallel walls (305, 306) extending vertically a distance (H3) that is greater than the horizontal distance (W3) between said walls (305, 306) and at least one horizontally extending attachment channel (302A, 302B) which is integrated in a bridging member (303) that forms a bridge between said two walls (300, 301).

A suction heat exchanger (1, 1') is disclosed. The heat exchanger (1. 1') comprises an outer pipe (3) and at least one inner pipe (5, 5') arranged inside and along the outer pipe (3). The outer pipe (3) is connectable to an evaporator and to a compressor (9) configured to achieve a flow of a medium through the outer pipe (3). The at least one inner pipe (5, 5') is configured for the medium to flow through the at least one inner pipe (5) in an opposite direction to the direction of the flow of the medium when flowing through the outer pipe (3). The outer pipe (3) and the at least one inner pipe (5, 5') are helically-formed around an axis (a) to form helical paths for the medium to flow through the outer pipe (3) and through the at least one inner pipe (5, 5'). A method (100) for manufacturing a suction heat exchanger (1, 1') is also disclosed.

A thermal energy arrangement (2) comprising a mechanical vapor recompression, MVR, unit (4), an absorption cooler unit (6), and a control system (8) configured to control said MVR unit (4) and said absorption cooler unit (6).The evaporation compartment (18) of the MVR-unit (4) is arranged to receive a working liquid, comprising a mixture of at least an absorbent, and a refrigerant, from the absorption cooler unit (6) via a working liquid line (22). The evaporation compartment (18) is connected to a controllable vacuum unit (28) via a vacuum line (30), wherein said control system (8) is configured to control said vacuum unit (28) to generate a variable pressure, being below ambient pressure, in order to lower the evaporation temperature of the working liquid within the evaporation compartment (18), wherein the set of pressure control rules is related to characteristics of the working liquid.The working liquid condensate from the MVR-unit (4) is arranged to be supplied to the absorption cooler unit (6) via a working liquid condensate line (32), wherein, as the refrigerant evaporates in the evaporation compartment (18), a working liquid salt brine solution in said at least one evaporation compartment (18) is arranged to be supplied via a salt brine solution line (34) to said absorption cooler unit (6).A heat exchanger (36) is arranged at said working liquid condensate line (32) and said salt brine solution line (34) configured to transfer heat from the working liquid condensate and the salt brine solution to the working liquid in the working liquid line (22) to be supplied to said MVR-unit (4).

A suspension device (1) for suspending an object from an overhead power transmission line, comprising:- two gripping arms (10, 20) pivotally mounted to a base (5) and pivotable in relation to each other between a closed position and an open position; and- clamping jaws (11, 21) fixed to and carried by a respective one of the gripping arms.Each clamping jaw has a base part (30) with two flank sections (32a, 32b) projecting from the associated gripping arm on opposite sides thereof, wherein each flank section has a rear face (33) that is exposed to surrounding air. Each clamping jaw also has upper and lower fingers (36, 39) that are rigidly connected to and project obliquely upwards and downwards, respectively, from the base part (30), wherein each finger has a rear face (37) that is exposed to surrounding air.

A heat and power system (1) for a building (2) is disclosed. The system (1) comprises: power units (3), supplementary heat units (5), attachment elements (7) and an edge element (9). The power units (3) and the supplementary heat units (5) are arranged to cover the whole outer surface (4) of the building (2), when both being attached to the attachment elements (7) and to the edge element (9). The edge element (9) and the elongated attachment elements (7) are configured to create a number of channels (13) delimited by the outer surface (4) of the building (2) and by the power units (3) and by the supplementary heat units (5). The system (1) further comprises: an inlet (15) and an outlet (17) for the gaseous medium to be transported in and out from the system (1) while being heated by solar radiation or while being cooled. A building (2) comprising a heat and power system (1) is also disclosed.

A mechanical vapour recompression (MVR) heating system (2) comprising a closed container (4) intended to contain working liquid (6), e.g. water, and vapour (7), the container (4) is provided with a working liquid inlet (8) arranged to receive an inflow (12) of low temperature working liquid into the container (4) and being connectable to a first pipe system (14) a, and a working liquid outlet (16) and/or a vapour outlet (50) arranged to provide an outflow (20) of high temperature working liquid/vapour out from the container (4). The MVR heating system (2) further comprises a compressor unit (24) arranged to receive vapour (7) from the container (4) via a vapour output member (26), and to generate a high pressure vapour flow (28), wherein the container (4) is provided with a vapour input member (30) configured to receive and expel said high pressure vapour flow (28) into the container (4). The heating operation performed by the system comprises:-filling the container (4) with low temperature working liquid;- heating the working liquid (6) of the container (4) until the working liquid temperature reaches a predetermined temperature;- starting and running the compressor unit (24) resulting in that the pressure in the container (4) will decrease resulting in that the pre-heated working liquid starts to boil and produces vapour;- generating said high pressure vapour flow (28);- expelling said high pressure vapour (28) flow into said container (4), and- supplying high temperature working liquid /vapour to external consumers, e.g. for heating purposes.