公开(公告)号：US06361110B1

公开(公告)日：2002-03-26

申请号：US09746180

申请日：2000-12-21

申请人： Richard N. Roslund, Jr. ,  Patrick Nelson ,  Larry Allen Wilkerson ,  Troy Roark ,  Joel Dral ,  Steve Simpson ,  John Clark

发明人： Richard N. Roslund, Jr. ,  Patrick Nelson ,  Larry Allen Wilkerson ,  Troy Roark ,  Joel Dral ,  Steve Simpson ,  John Clark

IPC分类号： A47C320

摘要： A tilt control mechanism for an office chair includes a spring arrangement which permits forward and rearward tilting of the chair while also urging the chair to a normal upright position. The spring arrangement includes front and rear springs which act in combination such that the upward acting forces acting on the chair can be varied during use. The forces being applied by the front spring are adjusted by a side-actuated tension adjustment mechanism which incorporates a wedge block for adjusting the spring forces. Further, the rear springs provide a variable spring force such that the spring force is maximized when in the normal position but is decreased substantially once the chair is fully reclined. This reduction in spring force allows a user to maintain the chair in the fully reclined position with significantly less force than was required to tilt the chair rearwardly while a sufficient spring force continues to be applied by the front spring to urge the chair to the normal position.

公开(公告)号：US6015187A

公开(公告)日：2000-01-18

申请号：US16371

申请日：1998-01-30

申请人： Richard N. Roslund, Jr. ,  Patrick Nelson ,  Larry Allen Wilkerson ,  Troy Roark ,  Joel Dral ,  Steve Simpson ,  John Clark

发明人： Richard N. Roslund, Jr. ,  Patrick Nelson ,  Larry Allen Wilkerson ,  Troy Roark ,  Joel Dral ,  Steve Simpson ,  John Clark

IPC分类号： A47C3/026 ,  A47C1/024

CPC分类号： A47C1/03255 ,  A47C1/03266 ,  A47C1/03272

摘要： A tilt control mechanism for an office chair includes a spring arrangement which permits forward and rearward tilting of the chair while also urging the chair to a normal upright position. The spring arrangement includes front and rear springs which act in combination such that the upward acting forces acting on the chair can be varied during use. The forces being applied by the front spring are adjusted by a side-actuated tension adjustment mechanism which incorporates a wedge block for adjusting the spring forces. Further, the rear springs provide a variable spring force such that the spring force is maximized when in the normal position but is decreased substantially once the chair is fully reclined. This reduction in spring force allows a user to maintain the chair in the fully reclined position with significantly less force than was required to tilt the chair rearwardly while a sufficient spring force continues to be applied by the front spring to urge the chair to the normal position.

公开(公告)号：US20110140497A1

公开(公告)日：2011-06-16

申请号：US12925888

申请日：2010-11-01

申请人： Tim Fookes ,  Joe Willette ,  Steve Simpson

发明人： Tim Fookes ,  Joe Willette ,  Steve Simpson

IPC分类号： A47C7/54

CPC分类号： A47C7/54

摘要： An armrest for a chair is provided which has an improved anti-rotation and mechanical connection between an armrest body and a frame tube of the chair. The end of the frame tube is mechanically deformed or is shaped so as to have a non-circular profile with a central opening defined by inwardly projecting arcuate surfaces of the frame tube. The armrest includes a cooperating, non-circular socket which fits onto the frame tube wherein a suitable fastener is threaded downwardly into direct, self-threading engagement with an upper opening formed in the end of the frame tube.

摘要翻译： 提供了一种用于椅子的扶手，其具有改进的扶手主体和椅子的框架管之间的防旋转和机械连接。 框架管的端部机械变形或成形为具有非圆形轮廓，其中心开口由框架管的向内突出的弧形表面限定。 扶手包括配合在框架管上的配合的非圆形插座，其中合适的紧固件向下螺纹地与形成在框架管的端部中的上部开口直接自我穿线接合。

公开(公告)号：US08132860B2

公开(公告)日：2012-03-13

申请号：US12925888

申请日：2010-11-01

申请人： Tim Fookes ,  Joe Willette ,  Steve Simpson

发明人： Tim Fookes ,  Joe Willette ,  Steve Simpson

IPC分类号： A47C7/54

CPC分类号： A47C7/54

摘要： An armrest for a chair is provided which has an improved anti-rotation and mechanical connection between an armrest body and a frame tube of the chair. The end of the frame tube is mechanically deformed or is shaped so as to have a non-circular profile with a central opening defined by inwardly projecting arcuate surfaces of the frame tube. The armrest includes a cooperating, non-circular socket which fits onto the frame tube wherein a suitable fastener is threaded downwardly into direct, self-threading engagement with an upper opening formed in the end of the frame tube.

摘要翻译： 提供了一种用于椅子的扶手，其具有改进的扶手主体和椅子的框架管之间的防旋转和机械连接。 框架管的端部机械变形或成形为具有非圆形轮廓，其中心开口由框架管的向内突出的弧形表面限定。 扶手包括配合在框架管上的配合的非圆形插座，其中合适的紧固件向下螺纹地与形成在框架管的端部中的上部开口直接自我穿线接合。

公开(公告)号：US20080006250A1

公开(公告)日：2008-01-10

申请号：US10578720

申请日：2004-07-23

申请人： Eric Bula ,  Steve Simpson ,  Jeff Stamp

发明人： Eric Bula ,  Steve Simpson ,  Jeff Stamp

IPC分类号： B01D45/16 ,  B04C3/04 ,  F02M35/022

CPC分类号： F02C7/052 ,  B01D45/04 ,  B01D45/16 ,  B01D50/002 ,  B04C3/04 ,  B04C2003/006 ,  F02M35/022 ,  F05D2260/607

摘要： A separator system has a plurality of separator stages (11, 12, 13) and operates to remove particulates from air, particularly in the inlet to an engine. Each stage includes a plurality of side-by-side inertial separators (26) through which the air flows and by which particulates are removed. Each stage (11, 12, 13) produces a pressure drop and the additional total pressure drop produced by each stage after the first is less than the additional total pressure drop produced by the preceding stage in an upstream direction. This allows particulates to be removed by the separator stages (11, 12, 13) alone without the use, in normal operation, of a barrier filter (14).

摘要翻译： 分离器系统具有多个分离器台（11,12,13），并且用于从空气，特别是在发动机的入口中除去微粒。 每个级包括多个并排的惯性分离器（26），空气流过该分离器（26），并且通过该惯性分离器除去微粒。 每个阶段（11,12,13）产生压降，并且在第一阶段之后由每个阶段产生的附加总压降小于由上一级在上游方向产生的附加总压降。 这允许单独的分离器级（11,12,13）除去微粒，而不需要在正常操作中使用阻挡过滤器（14）。