公开(公告)号：US4326145A

公开(公告)日：1982-04-20

申请号：US116269

申请日：1980-01-28

申请人： Leslie W. Foster ,  Henry B. Tillotson

发明人： Leslie W. Foster ,  Henry B. Tillotson

IPC分类号： F02N19/00 ,  F02N17/08

CPC分类号： F02N19/004 ,  F02P13/00

摘要： An improved spark plug and a compression relief adapter are described which are designed to permit a portion of the gases in the cylinder of an internal combustion engine to vent during the starting operation so as to make it easier to manually start the engine.

摘要翻译： 描述了改进的火花塞和压缩释放适配器，其被设计成允许内燃机的气缸中的一部分气体在起动操作期间排气，以便于更容易地手动启动发动机。

公开(公告)号：US4572150A

公开(公告)日：1986-02-25

申请号：US607193

申请日：1984-05-04

申请人： Leslie W. Foster

发明人： Leslie W. Foster

IPC分类号： F02P5/155 ,  F02P9/00 ,  F02P5/04 ,  F02P1/00 ,  F02P3/06

CPC分类号： F02P5/155 ,  F02P9/005 ,  Y02T10/46

摘要： Disclosed herein is an internal combustion engine including a mechanism for providing a potential capable of producing a spark when applied to a spark plug, first and second trigger means respectively and selectively operable for applying the potential to the spark plug to produce a spark at a normal timing relative to top dead center and at a retarded timing relative to top dead center, and a switch connected to the first trigger means and operable in response to engine rotation above a given speed for interrupting the operation of the first trigger means so as to change the timing of sparking operation from the normal timing to the retarded timing.

摘要翻译： 本文公开了一种内燃机，其包括用于提供当施加到火花塞时能够产生火花的电势的机构，分别具有第一和第二触发装置，并且可选择性地操作以将电位施加到火花塞以产生正常的火花 相对于上死点的相对于上死点的延迟定时的定时，以及连接到第一触发装置的开关，并且响应于发动机旋转高于给定速度而操作，以中断第一触发装置的操作，以便改变 从正常定时到延迟定时的点火操作的定时。

公开(公告)号：US4426780A

公开(公告)日：1984-01-24

申请号：US298966

申请日：1981-09-03

申请人： Leslie W. Foster

发明人： Leslie W. Foster

IPC分类号： A01D34/416 ,  B65B7/00

CPC分类号： A01D34/4162

摘要： A line metering apparatus (20) for use on a vegetation cutting device (22) includes a driving portion (40) and a driven portion (42). A pivotable pawl (58) selectively couples the driving and driven portions (40) and (42). Whenever the motor (28) is de-energized by turning it off, the driven portion (42) overruns the driving portion (40) causing the pawl (58) to disengage and allow filament line indexing to occur.

摘要翻译： 一种用于植被切割装置（22）的线路计量装置（20）包括驱动部分（40）和从动部分（42）。 可枢转棘爪（58）选择性地联接驱动部分（40）和驱动部分（42）。 无论何时通过关闭马达（28）来断电，被驱动部分（42）超过驱动部分（40），使得棘爪（58）脱离并且允许发生丝线索引。

公开(公告)号：US4271658A

公开(公告)日：1981-06-09

申请号：US128939

申请日：1980-03-10

申请人： Leslie W. Foster

发明人： Leslie W. Foster

IPC分类号： A01D34/68 ,  F16D67/02 ,  A01D69/08 ,  A01D69/10

CPC分类号： A01D34/6812 ,  F16D67/02 ,  A01D2101/00

摘要： A clutch and brake apparatus (2) includes a drive member (8) and a driven member (14) axially fixed to drive member (8). An array (50) of friction discs (52 and 54) is axially movable in a clutch chamber (22) in driven member (14). Friction discs (52) continuously engage drive member (8). Springs (48) force array (50) into engagement with thrust surface (60) on driven member (14) to couple driven member (14) to drive member (8). The driving connection is broken by a movable shell (66) which engages against the lowermost friction disc (54) through pins (74) to selectively move array (50) downwardly against the force of the springs (48). Shell (66) is moved downwardly by fingers (86) which also engage against a brake pad (76) on shell (66) to stop rotation of driven member (14).

摘要翻译： 离合器和制动装置（2）包括驱动构件（8）和轴向固定到驱动构件（8）的从动构件（14）。 摩擦盘（52和54）的阵列（50）可在从动构件（14）中的离合器室（22）中轴向移动。 摩擦盘（52）连续接合驱动构件（8）。 弹簧（48）力阵列（50）与被驱动构件（14）上的推力表面（60）接合，以将从动构件（14）联接到驱动构件（8）。 驱动连接被可动壳体（66）破坏，该可动壳体通过销（74）与最低摩擦盘（54）接合，以克服弹簧（48）的力选择性地移动阵列（50）。 外壳（66）通过手指（86）向下移动，指状物（86）也接合在外壳（66）上的制动衬块（76）上以停止从动构件（14）的旋转。

公开(公告)号：US4533301A

公开(公告)日：1985-08-06

申请号：US650998

申请日：1984-09-17

申请人： Leslie W. Foster

发明人： Leslie W. Foster

IPC分类号： F04B43/04 ,  F04B43/00 ,  F01B31/10

CPC分类号： F04B43/04

摘要： A pump particularly adapted to produce a pressurized fluid flow has an upper drive section attached to and separated from a lower pumping section by a diaphragm. The diaphragm maintains the integrity of each section to prevent contamination of the fluid, for example. In a housing of the drive section is a rotary drive shaft having an end formed with a camming surface. The drive shaft camming surface engages a camming surface formed on an end of a reciprocating member slideably carried in the housing on a spring. A lower end of the reciprocating member extends through the diaphragm and has a piston positioned in a piston chamber of a cylinder of the pumping section. As the drive shaft rotates, the engaging camming surfaces with the spring reciprocate the reciprocating member. Fluid flow into and from the piston chamber is selectively regulated by valving devices. During operation any fluid bypassing the piston caused, for example, when pump pressure is excessive, may collect in an overflow chamber formed in the cylinder. This bypass fluid may be ejected from the pump and returned to a reservoir. A flexing of the diaphragm by the reciprocating member promotes this return.

摘要翻译： 特别适于产生加压流体流的泵具有通过隔膜附接到下部泵送部分并从其分离的上部驱动部分。 隔膜保持每个部分的完整性，以防止例如流体的污染。 在驱动部分的壳体中是具有形成有凸轮表面的端部的旋转驱动轴。 驱动轴凸轮表面接合形成在弹簧上可滑动地承载在壳体中的往复运动件的端部上的凸轮表面。 往复运动构件的下端延伸穿过隔膜，并且具有定位在泵送区段的气缸的活塞室中的活塞。 当驱动轴旋转时，具有弹簧的接合凸轮表面使往复运动件往复运动。 通过阀门装置选择性地调节流入和流出活塞室的流体流动。 在操作期间，例如当泵压过大时，旁路活塞的任何流体都可能聚集在形成于气缸中的溢流室中。 该旁路流体可以从泵中排出并返回储存器。 通过往复运动构件的隔膜的弯曲促进了这种返回。

公开(公告)号：US4448179A

公开(公告)日：1984-05-15

申请号：US415340

申请日：1982-09-07

申请人： Leslie W. Foster

发明人： Leslie W. Foster

IPC分类号： F02P5/155 ,  F02P9/00 ,  F02G1/00 ,  F02P1/00 ,  F02P5/04

CPC分类号： F02P9/005 ,  F02P5/155 ,  Y02T10/46

摘要： Disclosed herein is an internal combustion engine including a mechanism for providing a potential capable of producing a spark when applied to a spark plug, first and second trigger means respectively and selectively operable for applying the potential to the spark plug to produce a spark at a normal timing relative to top dead center and at a retarded timing relative to top dead center, and a switch connected to the first trigger means and operable in response to engine rotation above a given speed for interrupting the operation of the first trigger means so as to change the timing of sparking operation from the normal timing to the retarded timing.

摘要翻译： 本文公开了一种内燃机，其包括用于提供当施加到火花塞时能够产生火花的电势的机构，分别具有第一和第二触发装置，并且可选择性地操作以将电位施加到火花塞以产生正常的火花 相对于上死点的相对于上止点的延迟定时的定时，以及连接到第一触发装置的开关，并且响应于发动机转速高于给定速度而操作，以中断第一触发装置的操作，以便改变 从正常定时到延迟定时的点火操作的定时。