公开(公告)号：US4451189A

公开(公告)日：1984-05-29

申请号：US242892

申请日：1981-03-12

申请人： John D. Pratt

发明人： John D. Pratt

IPC分类号： F16B19/10 ,  F16B13/04

CPC分类号： F16B19/1054 ,  Y10T29/49943

摘要： A blind fastener, producing a large blind side bulb, and including a locking ring to hold the fastener in a secured position against stresses. A collapsible barrel segment is disposed on the blind side between the end of the body portion and the head of the pull stem to effect the expansion of the body portion on the blind side. The barrel resists collapsing under loads sufficient to expand and flare the body portion of the fastener to produce the desired large bulb but collapses upon satisfactory flaring having been accomplished. The collapsible barrel, being collapsible along an angle, makes the fastener particularly well-adapted for fastening non-parallel surfaces.

摘要翻译： 一种盲卡扣，产生大的盲侧灯泡，并且包括锁定环，以将紧固件保持在抵抗应力的固定位置。 可折叠的桶段设置在主体部分的端部和拉杆的头部之间的盲侧上，以实现主体部分在盲侧的膨胀。 筒体在足以使紧固件的主体部分膨胀和扩张以产生期望的大灯泡的负载下抵抗塌陷，但是在已经实现令人满意的燃烧时塌陷。 可折叠的桶沿着一个角度可折叠，使得紧固件特别适合于紧固非平行表面。

公开(公告)号：US08608417B2

公开(公告)日：2013-12-17

申请号：US12418673

申请日：2009-04-06

申请人： John D. Pratt

发明人： John D. Pratt

IPC分类号： F16B13/04

CPC分类号： F16B13/063 ,  F16B13/066 ,  F16B13/0858 ,  F16B19/02 ,  F16B31/021 ,  F16B31/028 ,  F16B35/04 ,  F16B35/06

摘要： Disclosed is a clamp that includes a mechanical fastener, an expander including a bulbing portion and a shank wherein the bulbing portion of the expander forms a flange by movement of the mechanical fastener without applying an initial clamping force. After formation, the flange is then drawn into a clamping position by continued movement of the mechanical fastener. Also disclosed is a method of using the disclosed clamp.

摘要翻译： 公开了一种夹具，其包括机械紧固件，膨胀器，其包括凸部和柄部，其中膨胀机的膨胀部分通过机械紧固件的移动而形成凸缘而不施加初始夹紧力。 在形成之后，通过机械紧固件的持续运动将凸缘拉入夹紧位置。 还公开了使用所公开的夹具的方法。

公开(公告)号：US08322015B2

公开(公告)日：2012-12-04

申请号：US12888852

申请日：2010-09-23

申请人： John D. Pratt ,  Emory K. Tamashiro

发明人： John D. Pratt ,  Emory K. Tamashiro

IPC分类号： B23P11/00 ,  F16B39/284

CPC分类号： F16B19/1063 ,  F16B19/1072 ,  Y10T29/49947

摘要： A threaded blind fastener intended for installation in aerodynamically smooth or aesthetically critical panels, further adapted to minimize discontinuities on paintable surfaces of the head resulting from clearances between male and female threads that may adversely affect the quality of paint coverage.

摘要翻译： 一种用于安装在空气动力学平滑或美观临界面板中的螺纹盲紧固件，其进一步适于最小化可能对涂层覆盖质量产生不利影响的阳螺纹和阴螺纹之间的间隙的头部可涂漆表面上的不连续性。

公开(公告)号：US20120263556A1

公开(公告)日：2012-10-18

申请号：US13443658

申请日：2012-04-10

申请人： John D. Pratt

发明人： John D. Pratt

IPC分类号： F16B19/05

CPC分类号： F16B19/1072 ,  F16B19/1054

摘要： A fastener includes a body having a cylindrical passage formed through a central portion of the body and a tapered ramp disposed at an end of the body and a corebolt disposed within the passage formed by the body. The fastener further includes a sleeve movably disposed over the corebolt and adjacent the tapered ramp of the body. The sleeve includes a bore extending between first and second ends of the sleeve and a taper extending inwardly from the second end of the sleeve toward the first end of the sleeve, the second end of the sleeve being adjacent the tapered ramp of the body. The sleeve further includes a weakened interior region disposed between the taper and the first end of the sleeve, the weakened interior region being adapted to bulb outwardly when the sleeve is compressed against a workpiece.

摘要翻译： 紧固件包括具有通过主体的中心部分形成的圆柱形通道的主体和设置在主体的端部处的锥形斜面和设置在由主体形成的通道内的芯螺栓。 紧固件还包括可移动地设置在芯柱螺栓上并且邻近本体的锥形斜面的套筒。 套筒包括在套筒的第一和第二端之间延伸的孔，以及从套筒的第二端朝向套筒的第一端向内延伸的锥形，套筒的第二端与本体的锥形斜面相邻。 套筒还包括设置在锥体和套筒的第一端之间的弱化内部区域，弱化的内部区域适于当套筒被压靠在工件上时向外球泡。

公开(公告)号：US20100327505A1

公开(公告)日：2010-12-30

申请号：US12843465

申请日：2010-07-26

申请人： John D. Pratt

发明人： John D. Pratt

IPC分类号： B25B11/00 ,  B23P11/00

CPC分类号： F16B13/0858 ,  F16B19/02 ,  F16B31/021 ,  F16B31/028 ,  F16B35/04 ,  F16B35/06 ,  Y10T29/49815

摘要： Disclosed is a clamp that includes a bolt, a spacer, a shank, an expander and a blocking means. The bolt includes a non-threaded undercut that permits the bolt to rotate in an internally threaded portion of the spacer without threaded engagement between the bolt and the spacer. When used as a clamp, the spacer, shank, expander and blocking means cooperate to deform the expander into a blind side flange and to clamp a work piece between the flange and the spacer. To remove the clamp, the bolt is moved away from the spacer while rotating the bolt in the expander to bring the external threads of the expander into threaded engagement with the internal threads of the spacer. This permits the extraction of the bolt from the blind side expander by maintaining rotational restraint of the expander with the spacer. In several embodiments, a compression spring is positioned between the head of the bolt and the spacer to automatically move the bolt when it is rotated in a loosening direction.

摘要翻译： 公开了一种夹具，其包括螺栓，间隔件，柄，膨胀器和阻塞装置。 螺栓包括非螺纹底切，其允许螺栓在间隔件的内螺纹部分中旋转，而螺栓和间隔件之间没有螺纹接合。 当用作夹具时，间隔件，柄，膨胀器和阻塞装置配合以使膨胀器变形成盲侧凸缘并将工件夹在凸缘和间隔件之间。 为了拆下夹具，螺栓在旋转膨胀机中的螺栓的同时从间隔件移开，使膨胀机的外螺纹与间隔件的内螺纹螺纹接合。 这允许通过保持膨胀机与间隔件的旋转限制，从盲侧膨胀机提取螺栓。 在几个实施例中，压缩弹簧定位在螺栓的头部和间隔件之间，以在螺栓沿松动方向旋转时自动移动螺栓。

公开(公告)号：US20090226278A1

公开(公告)日：2009-09-10

申请号：US12418778

申请日：2009-04-06

申请人： John D. Pratt

发明人： John D. Pratt

IPC分类号： F16B13/06

CPC分类号： F16B13/063 ,  F16B13/066 ,  F16B13/0858 ,  F16B19/02 ,  F16B31/021 ,  F16B31/028 ,  F16B35/04 ,  F16B35/06

摘要： Disclosed is a deformable sleeve that includes a bulbing portion, a first end portion, a second end portion, a transition portion defining a groove on the outer surface of the sleeve and located between the bulbing portion and the first end portion so that upon application of a compressive load to the deformable sleeve the bulbing portion bulbs to form a flange that begins in the transition portion so that the transition between the flange and the first end portion is non-canted. Also disclosed is a method for manufacturing such a deformable sleeve that includes applying a mechanical treatment to the a flanged end of a sleeve to deform the flanged end until its outer diameter is equal to the outer diameter of the rest of the sleeve, thereby forming the first end portion.

摘要翻译： 公开了一种可变形的套筒，其包括一个凸起部分，一个第一端部分，一个第二端部分，一个过渡部分，该套筒在该套筒的外表面上形成一个凹槽，并位于该凸部和该第一端部之间， 对可变形套筒的压缩载荷，凸起部分灯泡形成在过渡部分中开始的凸缘，使得凸缘和第一端部之间的过渡是非倾斜的。 还公开了一种用于制造这种可变形套筒的方法，该方法包括对套筒的凸缘端部进行机械处理以使凸缘端部变形，直到其外径等于套筒的其余部分的外径，从而形成 第一端部。

公开(公告)号：US20080213063A1

公开(公告)日：2008-09-04

申请号：US11973278

申请日：2007-10-05

申请人： John D. Pratt

发明人： John D. Pratt

IPC分类号： F16B13/04 ,  B23P11/00

CPC分类号： F16B13/066 ,  F16B31/021 ,  Y10T29/49826

摘要： A clamp and a method for installing the clamp into at least two work pieces is provided. The clamp has a shank keyed to an expander. The expander engages the core bolt such that rotation of the core bolt bulbs the expander to clamp the work pieces. A spacer engages the shank to prevent rotation of the shank during installation. The shank has a flange fracturing at a predetermined compression load. The core bolt optionally has a first and a second break groove fracturing at predetermined compression loads. A nut is optionally provided to engage the spacer.

摘要翻译： 提供一种用于将夹具安装到至少两个工件中的夹具和方法。 夹具有一个与膨胀机相连的柄。 膨胀机接合芯螺栓，使得芯螺栓的旋转使膨胀器膨胀以夹紧工件。 间隔件接合柄以防止在安装期间柄的旋转。 柄部具有以预定的压缩载荷压裂的凸缘。 芯螺栓可选地具有第一和第二断裂槽，以预定的压缩载荷压裂。 可选地提供螺母以接合间隔件。

公开(公告)号：US5619333A

公开(公告)日：1997-04-08

申请号：US407060

申请日：1995-03-17

申请人： Paul E. Staff ,  David Button ,  John D. Pratt ,  Dominic P. E. Barnard

发明人： Paul E. Staff ,  David Button ,  John D. Pratt ,  Dominic P. E. Barnard

IPC分类号： G01N15/14 ,  G01N15/02 ,  G01N15/06 ,  G01N21/53 ,  G01N21/85 ,  G01N33/28 ,  G01N21/00

CPC分类号： G01N21/534 ,  G01N21/85 ,  G01N33/2858 ,  G01N15/06 ,  G01N2015/0222

摘要： The invention relates to a portable on-line fluid contamination monitor. An inlet and an outlet are provided for connecting the monitor to a fluid control circuit and a measuring device is included for withdrawing fluid from the circuit. An optical sensor assembly is used to view fluid withdrawn from the circuit and to determine the level of contamination by observation of the particles therein, the optical sensor assembly viewing the fluid through a window by means of a light source disposed to project light through the window and the fluid. A light sensor disposed on the opposite side of the window from the light source is arranged to detect particles in the fluid passing across the window by sensing the degree of light obscuration caused by particles in the fluid.

摘要翻译： 本发明涉及便携式在线流体污染监测器。 提供入口和出口用于将监视器连接到流体控制电路，并且包括用于从电路中抽出流体的测量装置。 光学传感器组件用于观察从电路抽出的流体并通过观察其中的颗粒来确定污染程度，光学传感器组件通过窗口通过窗口观察流体，光源设置成将光投射通过窗口 和流体。 设置在与光源相反的窗口的光传感器被布置成通过感测由流体中的颗粒引起的光遮蔽程度来检测通过窗口的流体中的颗粒。

公开(公告)号：US5378098A

公开(公告)日：1995-01-03

申请号：US132502

申请日：1993-10-05

申请人： George A. Andrews ,  John D. Pratt ,  Soheil Eshraghi

发明人： George A. Andrews ,  John D. Pratt ,  Soheil Eshraghi

IPC分类号： F16B19/10 ,  F16B13/04 ,  F16B13/06

CPC分类号： F16B19/1054 ,  Y10T29/49954

摘要： A blind fastener designed to secure workpieces having aligned holes therein is provided. The fastener comprises an elongated stem having a head at one end and a serrated tail at the other, and a tubular sleeve having a head through which tail of the stem extends and a tail which is engaged by the head of the stem. The stem further includes a shear ring for bulbing the sleeve tail and a lock ring groove for receiving a lock ring for locking the stem to the sleeve. The stem also has a shoulder which engages shoulder portion in the sleeve to cause the sleeve to expand radially outward so as to fill any clearance or gap between the sleeve and the workpieces. A reservoir located in the stem accepts excess shoulder material displaced during the hole filling process. In one embodiment, a preformed lock ring is positioned in the lock ring groove to lock the stem to the sleeve. In another embodiment, a lock ring is formed from material in the sleeve head.

摘要翻译： 提供了一种设计用于固定其中具有对准的孔的工件的盲紧固件。 紧固件包括细长的杆，其在一端具有头部，在另一端具有锯齿状尾部，并且管状套筒具有头部，杆的尾部延伸穿过头部，尾部由杆的头部接合。 所述杆还包括用于突出所述套筒尾部的剪切环和用于接收用于将所述杆锁定到所述套筒上的锁定环的锁定环槽。 杆还具有肩部，该肩部与套筒中的肩部接合以使套筒径向向外扩张，以便填充套筒和工件之间的任何间隙或间隙。 位于杆中的储存器容纳在孔填充过程中移动的多余的肩部材料。 在一个实施例中，预制的锁定环定位在锁定环槽中以将杆锁定到套筒上。 在另一个实施例中，锁环由套筒头部中的材料形成。

公开(公告)号：US5152648A

公开(公告)日：1992-10-06

申请号：US788532

申请日：1991-11-06

申请人： John D. Pratt

发明人： John D. Pratt

IPC分类号： F16B19/10

CPC分类号： F16B19/1063

摘要： The fastener assembly includes a generally solid pin, positioned within a tubular fastener body and a buckle sleeve. The fastener body has a generally cylindrical configuration and includes an enlarged head adjacent one end thereof, an intermediate shank portion, and a nose portion adjacent the other end thereof. The nose portion engage the buckle sleeve, and during installation causes the buckle of the buckle sleeve to form prior to workpiece contact by the interaction between the nose portion of the fastener and the leading edge of the buckle sleeve. The sleeve buckles the intersection between a trailing section and the largest inner diameter at the end of a tapered interior section.

摘要翻译： 紧固件组件包括定位在管状紧固件主体和带扣套内的大致实心销。 紧固件主体具有大致圆柱形的构造，并且包括邻近其一端的扩大头部，中间柄部分和与其另一端相邻的鼻部。 鼻部部分接合带扣套，并且在安装期间通过紧固件的鼻部与带扣套的前缘之间的相互作用，在工件接触之前形成带扣套的带扣。 套筒在锥形内部部分的端部处扣合尾部与最大内径之间的交点。