公开(公告)号：US4030000A

公开(公告)日：1977-06-14

申请号：US662638

申请日：1976-03-01

申请人： James R. Stewart ,  Donald G. Tweed

发明人： James R. Stewart ,  Donald G. Tweed

IPC分类号： H05K7/14 ,  H05K1/04 ,  H05K7/12

CPC分类号： H05K7/142

摘要： Support members are located near the corners of a pair of printed circuit cards for holding them together in a fixed, spaced-apart, adjacent and parallel relationship. Each card has a group of holes formed in the same pattern in each of the four corners thereof, at least one hole of each group extending all the way through the card. Each support member comprises a pair of plates that are joined together at a 90.degree. angle along one edges thereof. Load-bearing pegs project from parallel, non-joined together edges of one plate. Flexible posts project from parallel, non-joined together edges of the other plate. An arm extends from each post proximate the end thereof that is spaced from the other plate and in a direction substantially parallel to said parallel edges of the other plate. A post and peg are located on adjacent edges of the plates such that they fit into corresponding holes in the same group thereof on a PC card, with the arm extending through a hole and snapping over the associated card to hold it in place. The pegs operate as load-bearing members when axial pressure is exerted on the plates to insert a card into or remove it from a shelf.

摘要翻译： 支撑构件位于一对印刷电路卡的拐角附近，用于将它们固定在一起，间隔开，相邻和平行的关系。 每个卡具有在其四个角中的每一个中以相同图案形成的一组孔，每组的至少一个孔一直延伸穿过卡。 每个支撑构件包括一对板，其沿其一个边缘以90度角连接在一起。 承重钉从一个板的平行，非连接边缘投影。 柔性柱从平行，非连接在一起的边缘的另一块板。 臂从靠近其另一个板的端部的每个柱延伸，并且在大致平行于另一个板的所述平行边缘的方向上延伸。 柱和钉位于板的相邻边缘上，使得它们装配在PC卡上的相同组中的相应孔中，臂延伸穿过孔并且卡在相关卡上以将其保持在适当位置。 当轴承压力施加在板上以将卡插入架子或将其从架子上取下时，销钉用作承载构件。

公开(公告)号：US4071876A

公开(公告)日：1978-01-31

申请号：US751637

申请日：1976-12-17

申请人： Wayne J. Benson ,  Roy B. Torburn ,  Donald G. Tweed

发明人： Wayne J. Benson ,  Roy B. Torburn ,  Donald G. Tweed

IPC分类号： H01T4/06 ,  H02H7/20

CPC分类号： H01T4/06

摘要： This protector holder includes a plurality of double ended spring terminals which are arranged in a row in a housing that is made up of mating body halves. Each spring terminal includes a folded ribbon contact and adjacent-facing folded finger contacts formed on opposite ends thereof which are connected together by a shank. Each body half has a plurality of openings arranged in a row in one side thereof, each opening having a slot extending through the top wall and one side of the body half and having a trough in the one side of the latter body half which extends through the bottom wall thereof. The finger contacts and shanks of spring terminals are located in associated openings and slots, respectively, with the folded ribbon contacts extending above the top wall of a body half in pairs which face each other. A pair of body halves mate such that the slots and openings form slotted compartments in a housing which hold the shanks and finger contacts of the terminals in place. The troughs in the two body halves also mate to form openings through which the holder is plugged onto pins of a connector, with the pins engaging associated finger contacts inside the compartments. A ground strap having fingers extending above the top wall of the housing and between ribbon contacts of pairs of terminals extends around the side and ends of the housing. Cylindrical gas tube type surge arrestors having end and intermediate band electrodes are pressed between associated facing folded ribbon contacts with fingers of the ground strap contacting associated intermediate band electrodes.

摘要翻译： 该保护器支架包括多个双端弹簧端子，它们在由配合体半部构成的壳体中排列成一列。 每个弹簧端子包括折叠的带状接触件和形成在其相对端部上的相邻的折叠的指形触点，其通过柄连接在一起。 每个主体一半具有在其一侧排成一行的多个开口，每个开口具有延伸通过顶壁和主体半部的一侧的狭槽，并且在后半体的一侧具有延伸穿过的槽 其底壁。 弹簧端子的手指触点和柄部分别位于相关联的开口和狭槽中，折叠的带状触点在彼此面对的成对的主体的顶壁上方延伸。 一对本体半部配合，使得狭槽和开口在壳体中形成开槽的隔室，该壳体将端子的柄和手指触点保持在适当位置。 两个主体半部中的槽也配合形成开口，保持器通过该开口插入到连接器的销上，其中销与相应的手指接触在隔间内。 具有在壳体的顶壁上方并且在成对的端子的带状触头之间延伸的手指的接地带围绕壳体的侧部和端部延伸。 具有端部和中间带状电极的圆柱形气体管式浪涌抑制器被压在相关联的面对折叠的带状接触件之间，接地带的接触带接触相关联的中间带电极。

公开(公告)号：US4312121A

公开(公告)日：1982-01-26

申请号：US6772

申请日：1979-01-26

申请人： Donald G. Tweed

发明人： Donald G. Tweed

IPC分类号： F16L53/00 ,  H02G3/00 ,  H02G3/02 ,  H02G3/06 ,  H02G3/08 ,  H05B3/06 ,  H01C1/022 ,  H02G3/18

CPC分类号： F16L53/008 ,  H02G3/0616 ,  H02G3/088 ,  H05B3/06 ,  Y10T29/49083 ,  Y10T29/49087

摘要： An apparatus and method for electrically connecting a heater strip is described. The apparatus is characterized in that a deformable grommet assembly is placed around the heater strip, so that the grommet assembly can be deformed by a pressure plate so that it fits tightly against the heater strip. The grommet assembly can hold the heater strip away from a support surface of the pipe on which the heater strip is mounted and can hold the heater strip oriented perpendicularly relative to the support surface. A grounding plate can be provided for pressing a grounding element of the heater strip against the pressure plate.An apparatus based on the same grommet assembly for electrically terminating a heater strip is also described.

摘要翻译： 描述了用于电连接加热器条的装置和方法。 该装置的特征在于，可变形的索环组件放置在加热器条周围，使得索环组件可以通过压板变形，使得其紧密地配合加热器条。 索环组件可以将加热器带保持在远离加热条带安装在其上的管的支撑表面上，并且可以使加热条保持相对于支撑表面垂直取向。 可以提供接地板，用于将加热器条的接地元件压靠在压板上。 还描述了基于用于电终接加热器条的相同索环组件的装置。

公开(公告)号：US4238640A

公开(公告)日：1980-12-09

申请号：US6186

申请日：1979-01-24

申请人： Donald G. Tweed ,  Danny G. Morrow

发明人： Donald G. Tweed ,  Danny G. Morrow

IPC分类号： H01R4/18 ,  H01R4/22 ,  H01R4/70

CPC分类号： H01R4/22 ,  H01R4/18 ,  H01R4/70 ,  Y10S439/936

摘要： An electrical connector which can be used for pipe line heaters includes a base, an insert having a slot therethrough for a conductor, and a crimp barrel for the insert. A cap fits over the barrel and cooperates with the barrel and base so that when the cap is filled with a viscous potting compound, and the cap is slid over the barrel, the potting compound is pressured so that it substantially completely fills the cap and the base, thereby environmentally sealing the resulting assembly.

摘要翻译： 可用于管线加热器的电连接器包括基座，具有用于导体的通孔的插入件和用于插入件的压接筒。 一个帽子装配在桶上并且与桶和底座配合，使得当盖子被一个粘稠的灌封混合物填充并且盖子在桶上方滑动时，灌封混合物被压力，使得它基本上完全填满盖子 从而对所得组件进行环境密封。

公开(公告)号：US4254326A

公开(公告)日：1981-03-03

申请号：US938571

申请日：1978-08-31

申请人： Jack M. Walker ,  Donald G. Tweed

发明人： Jack M. Walker ,  Donald G. Tweed

IPC分类号： H05B3/58 ,  H05B3/06

CPC分类号： H05B3/58

摘要： An expansion joint for metallic foil strip heaters encasing resistive heating elements comprised of a bend formed in the metallic foil strips. The expansion joint is formed by use of a tool for passing a roller in the tool handle over a rigid forming support affixed to the tool bottom forming plate with the metallic foil strip heater placed between the roller and the forming support. The tool is then removed and a flexible metal support hose is affixed to the object to be heated with the bend in the metallic foil strips placed over this support hose. The bend is then affixed to the object to be heated on either side of the support hose.

摘要翻译： 一种用于金属箔条加热器的膨胀接头，其包围形成在金属箔条中的弯曲部分的电阻加热元件。 膨胀接头通过使用用于将工具把手中的辊通过固定到工具底部形成板的刚性成形支撑件上的工具形成，金属箔片加热器放置在辊和成形支撑件之间。 然后移除该工具，并且将柔性金属支撑软管与放置在该支撑软管上的金属箔条中的弯曲部分固定到待加热物体上。 然后将弯曲部固定在待加热物体的两侧的支撑软管上。