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21. 发明授权

US3269047A Marine line floats 失效
标题翻译：海洋线漂浮
公开(公告)号：US3269047A
公开(公告)日：1966-08-30
申请号：US32059663
申请日：1963-10-03
申请人： JOHN O GRAYBEAL
发明人： SLATTERY ROBERT M
IPC分类号： A01K73/04 , A01K75/04
CPC分类号： A01K75/04 , A01K73/04

22. 发明授权

US1582641A Trawling geaf 失效
标题翻译：拖曳地坪
公开(公告)号：US1582641A
公开(公告)日：1926-04-27
申请号：US3741125
申请日：1925-06-16
申请人： VIGNERON DAHL & CIE
发明人： MARIE DANIELOU RENE LOUIS , JULES VERHOEVEN JACQUES
IPC分类号： A01K73/04
CPC分类号： A01K73/045 , A01K73/04

23. 发明授权

US1553754A Trawling gear 失效
公开(公告)号：US1553754A
公开(公告)日：1925-09-15
申请号：US67890523
申请日：1923-12-06
申请人： VIGNERON DAHL & CIE
发明人： MARIE DANIELOU RENE LOUIS , JULES VERHOEVEN JACQUES
IPC分类号： A01K73/04
CPC分类号： A01K73/045 , A01K73/04

24. 发明公开

US20230148260A1 Spreading Device 审中-公开
公开(公告)号：US20230148260A1
公开(公告)日：2023-05-11
申请号：US17920481
申请日：2021-04-20
申请人： Atli Mar Josafatsson
发明人： Atli Mar Josafatsson
IPC分类号： A01K73/04
CPC分类号： A01K73/04
摘要： A spreading device for spreading gear, including fishing gear or seismic survey gear, towed behind a vessel in water, comprising a hollow body of concavo-convex shape and made of plastics material. The body has a general mirror symmetry about a plane which is substantially mid-height and/or mid-length in the body in use. The body has a fore-and-aft to top-to-bottom aspect ratio of between 1:2 and 4:1, and an inner concave side and an outer convex side. The device has a forward towing point on the inner concave side for a tow line to the vessel and aft towing point for attachment of the gear to be towed. The plastic material of the hollow body renders the body buoyant in water and enables ballast or additional buoyancy to be added.

25. 发明申请

US20150135835A1 TWIN TRAWL GEOMETRY 审中-公开
标题翻译：双L几何
公开(公告)号：US20150135835A1
公开(公告)日：2015-05-21
申请号：US14401122
申请日：2013-05-15
申请人： Scantrawl AS
发明人： Henning Skjold-Larsen
IPC分类号： G01B17/00 , A01K73/02
CPC分类号： G01B17/00 , A01K73/02 , A01K73/04 , A01K73/045 , G01S5/18 , G01S5/30
摘要： A system for monitoring a twin trawl being towed by a vessel, the twin trawl comprising two trawl bags, two trawl doors and a clump, comprises at least one sensor arrangement for measuring distance between the doors and between one door and the clump, and a processing unit for computing geometric indicators based on the measured values. By means of the transmission of acoustic signals, the distances between the doors and the doors and the clump can be calculated and compared, and thus provide geometric indicators.
摘要翻译：一种用于监测由船只拖曳的双拖网的系统，所述双拖网包括两个拖网袋，两个拖网门和一个丛，所述系统包括至少一个传感器装置，用于测量所述门之间以及一个门与所述块之间的距离，以及一用于基于测量值计算几何指标的处理单元。通过声信号的传输，可以计算和比较门与门之间的距离以及组合，从而提供几何指标。

26. 发明申请

US20150103631A1 TRAWL HEIGHT INDICATOR 审中-公开
标题翻译： TRAWL高度指示器
公开(公告)号：US20150103631A1
公开(公告)日：2015-04-16
申请号：US14401120
申请日：2013-05-15
申请人： Scantrawl AS
发明人： Henning Skjold-Larsen
IPC分类号： A01K73/04 , G01S15/02 , A01K73/02
CPC分类号： A01K73/04 , A01K73/025 , G01S7/003 , G01S15/02 , G01S15/08 , G01S15/96
摘要： A trawl sensor device for monitoring trawl doors and the distance of the trawl to the boom during trawling operations comprises at least one acoustic transmitter and receiver, the transmitter being adapted to be positioned such that an acoustic signal is transmitted towards the seabed at a forward-pointing angle, and means for communication between the sensor device and a vessel. The transmitted acoustic signal is reflected from the seabed and is received at this position and the distance between the acoustic transmitter and the seabed is calculated based on the difference in time between transmission and reception of the acoustic signal and the forward-pointing angle.
摘要翻译：一种用于监视拖网门的拖网传感器装置，以及在拖网期间拖网到悬臂的距离包括至少一个声发射器和接收器，该发射器适于定位成使得声信号在前进方向上被传送到海底，指向角，以及用于传感器装置和容器之间的通信的装置。发射的声信号从海底反射并在该位置被接收，并且基于声信号的发射和接收之间的时间差与前向角度来计算声发射器和海底之间的距离。

27. 发明授权

US06357164B1 Cell design for a trawl system and methods 有权
标题翻译：拖网系统和方法的细胞设计
公开(公告)号：US06357164B1
公开(公告)日：2002-03-19
申请号：US09403121
申请日：2000-02-23
申请人： Sherif Safwat , Valentin G. Perevoshchikov
发明人： Sherif Safwat , Valentin G. Perevoshchikov
IPC分类号： A01K7302
CPC分类号： D07B5/005 , A01K73/04 , A01K75/00 , D04C1/12 , D07B1/02 , D07B2201/1096 , D07B2201/209
摘要： Mesh bars (35, 283) of a trawl (13, 263) include at least a portion having a corkscrew-shaped pitch which exhibits a hydrofoil-like effect. Such mesh bars (35, 283) are preferably formed from a material having a substantially incompressible cross-sectional shape. By appropriately selecting the lay and leading edge of mesh bars (35, 283), movement of the trawl (13, 263) through the water entrained environment creates a pressure differential and lift across that portion of mesh bars (25, 283) which exhibit the hydrofoil-like effect. The lift thus created increases performance characteristics of the trawl (13, 263) including increased trawl volume, improved trawl shape, and reduced vibration, noise, and drag. Obtaining the greatest improvement of trawls (13, 263) requires controlling a pitch range for twisted product strands (e.g. twisted ropes) (36, 37), and for straps (284) forming mesh bars (35, 283). For straps (284), control of a width to thickness ratio also significantly affects performance of the trawl (13, 263).
摘要翻译：拖网（13,263）的网格条（35,283）包括至少一部分具有螺旋形螺距，其呈现水翼状的作用。这种网棒（35,283）优选由具有基本上不可压缩的横截面形状的材料形成。通过适当地选择网杆（35,283）的铺设和前缘，拖网（13,263）穿过水夹带的环境的运动产生压力差并提升穿过网棒（25,283）的那部分，其展现出水翼般的效果。因此产生的电梯增加了拖网的性能特征（13,263），包括拖网量增加，拖网形状改善，振动，噪音和阻力减小。获得拖网的最大改进（13,263）需要控制扭绞产品股（例如扭绞绳索）（36,37）和形成网条（35,283）的带（284）的间距范围。对于带（284），宽度与厚度比的控制也显着影响拖网的性能（13,263）。

28. 发明授权

US06138397A Method and device for operation of a trawl 有权
标题翻译：拖网操作方法及装置
公开(公告)号：US06138397A
公开(公告)日：2000-10-31
申请号：US194837
申请日：1999-05-27
申请人： Helge Hammersland , Arne Tvedt
发明人： Helge Hammersland , Arne Tvedt
IPC分类号： A01K73/04 , A01K73/20
CPC分类号： A01K73/04
摘要： There is referred to a process and an arrangement for control of one or more trawls (12, 40, 42) which are towed after a vessel (10), where the trawl(s) (12, 40, 42) are connected to the vessel by means of a number of cables (16, 14; 44, 45, 46), and where one or more devices (22, 24) contribute to maintaining the trawl(s) opening(s) outstretched during the movement through the sea and the invention is characterized in that the individual traction (FW1, FW2, FW3) in the cables (44, 45, 46) is regulated on the basis of measurements of the direction of flow (P3) of water adjacent to the trawl or the trawls.
摘要翻译： PCT No.PCT / NO97 / 00136 Sec。 371日期1999年5月27日第 102（e）1999年5月27日PCT 1997年6月2日PCT公布。公开号WO97 / 46087 日期1997年12月11日提到一个控制一个或多个拖网（12,40,42）的过程和安排，这些拖网在船只（10）之后拖曳，拖网（12,40,42））通过多个电缆（16,14; 44,45,46）连接到容器，并且其中一个或多个装置（22,24）有助于在一个或多个电缆通过海上运动和本发明的特征在于，电缆（44,45,46）中的单独牵引力（FW1，FW2，FW3）是基于相邻水流的方向（P3）的测量来调节的拖网或拖网。

29. 发明授权

US4783927A Doorless, positive-spreading trawling apparatus 失效
标题翻译：无门，正扩散的拖网渔船
公开(公告)号：US4783927A
公开(公告)日：1988-11-15
申请号：US22946
申请日：1987-03-06
申请人： Albert A. Leonard
发明人： Albert A. Leonard
IPC分类号： A01K73/04 , A01K73/02
CPC分类号： A01K73/04
摘要： The doorless trawling apparatus provides for positive spreading of the opening of a trawling net by means of a plurality of toggle spreading bars which spread the net by a combination of towing force and water resistance. The net may be collapsed for hauling in or avoiding obstructions by a positively activated collapse mechanism or a safety release. The trawling depth is controlled by a variable buoyancy float system.
摘要翻译：无门拖网装置通过多个肘杆伸展杆，通过牵引力和防水性的组合来扩展网状物，从而对拖网的开口进行正面扩展。通过积极的活动的塌缩机构或安全释放，网可能被塌缩以拖入或避开障碍物。拖网深度由可变浮力浮标系统控制。

30. 发明授权

US4597214A Trawling apparatus 失效
标题翻译：拖网装置
公开(公告)号：US4597214A
公开(公告)日：1986-07-01
申请号：US669296
申请日：1984-11-08
申请人： Clifford W. Collins
发明人： Clifford W. Collins
IPC分类号： A01K73/04 , A01K73/045
CPC分类号： A01K73/04
摘要： Trawling apparatus, including otterboards, sleds and mid-water boards (47) have transverse slats (50,54) fixed to a frame, has uprights (48) and a shoe. The apparatus is towed via a towing yoke (49) attached to a towing cable. The slats (50,54) have upright front portions (51) which define flow passages (53) therebetween. The trailing portions (52) are upwardly inclined to generate a downforce to urge the apparatus to the ocean floor. On the mid-water boards (47), the lower slats (54) have hinged trailing portions (55) which are adjustable to enable the mid-water boards (47) to be towed down to, and maintained at, a desired depth.
摘要翻译：牵引装置，包括水獭板，雪橇和中水板（47）具有固定在框架上的横向板条（50,54），具有立柱（48）和鞋。该装置通过连接到牵引缆索的牵引轭（49）拖动。板条（50,54）具有在其间限定流动通道（53）的直立前部（51）。尾部（52）向上倾斜以产生下压力以将装置推向海底。在中水板（47）上，下板条（54）具有可调节的铰接尾部（55），以使中间水板（47）能够被拖下并保持在期望的深度。

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