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1. 发明授权

US4377991A Internal combustion apparatus 失效
标题翻译：内燃装置
公开(公告)号：US4377991A
公开(公告)日：1983-03-29
申请号：US175403
申请日：1980-08-05
申请人： Maurice Liesse
发明人： Maurice Liesse
IPC分类号： F02B65/00 , B25C1/08 , B25D9/10 , E21B1/34 , F01B11/00 , F01B11/04 , F02B71/04
CPC分类号： B25C1/08 , B25D9/10 , F01B11/007 , F01B11/04 , F02B71/04
摘要： An internal combustion apparatus is disclosed having a linear output. A metered quantity of gas fuel is transferred between a cylinder head and the disc of a plunger reciprocable in a principal chamber between top and bottom end of stroke positions. In the displacement of the plunger to its bottom end of stroke position air and fuel are intimately mixed in a one-way flow path around the disc including nonparallel and/or burred orifices in a perforate plate attached to the plunger. The fuel may be liquefied gas fuel in which case it may be vaporized by the combustion gases exhausted from the principal chamber to the surroundings through an annular exhaust zone coaxial of throttle passageways for carrying fuel from the metering piston to the principal chamber. Alternatively, a pressurized gas fuel may be used in which case the pressurized gas is utilized in the operation of the plunger.
摘要翻译：公开了具有线性输出的内燃设备。计量的气体燃料在气缸盖和可在行程位置的顶端和底端之间的主室中往复运动的柱塞的盘之间传递。在柱塞移动到其行程位置的底端时，空气和燃料在围绕盘的单向流动路径中紧密地混合，包括连接到柱塞的穿孔板中的不平行和/或毛孔。燃料可以是液化气体燃料，在这种情况下，燃料可以被从主室排出到周围的燃烧气体通过节流通道同轴的环形排气区汽化，用于将燃料从计量活塞运送到主室。或者，可以使用加压气体燃料，在这种情况下，加压气体用于活塞的操作。

2. 发明授权

US3939921A Method and device for damping the movement of a hammer piston 失效
标题翻译：用于阻尼锤活塞运动的方法和装置
公开(公告)号：US3939921A
公开(公告)日：1976-02-24
申请号：US533135
申请日：1974-12-16
申请人： Kurt Osten Brannstrom
发明人： Kurt Osten Brannstrom
IPC分类号： B25D9/10 , B25D11/12 , B25D17/06 , B25D17/24 , E21B1/00 , E21B1/30 , E21B1/34 , E21B1/38 , E21B9/10
CPC分类号： E21C3/04 , B25D11/125 , B25D17/245
摘要： A method for damping the movement of the hammer piston of a hammer mechanism and for catching the hammer piston in a forward end position when the drill tool is situated outside the operating range of the hammer piston is disclosed. During the return stroke of the hammer piston gas is driven from one chamber to another chamber through a slot. When the hammer piston exceeds its normal range of operation gas is driven through the slot in the other direction and also through a channel in the machine housing so that a weaker damping is obtained than during the return stroke. A hammer mechanism to be operated according to the above method is also disclosed.
摘要翻译：公开了一种用于阻止锤式机构的锤式活塞的运动并且当钻具位于锤式活塞的操作范围之外时将锤式活塞捕获在前端位置的方法。在锤的返回行程期间，活塞气体通过狭槽从一个室驱动到另一个室。当锤活塞超过其正常工作范围时，气体沿另一方向通过狭槽驱动，并且还通过机器壳体中的通道驱动，使得获得比在返回行程期间更弱的阻尼。还公开了根据上述方法操作的锤击机构。

3. 发明授权

US2545999A Internal-combustion percussive tool 失效
标题翻译：内燃式打击工具
公开(公告)号：US2545999A
公开(公告)日：1951-03-20
申请号：US3990248
申请日：1948-07-21
申请人： HIRSCHBERG CHARLES A
发明人： HIRSCHBERG CHARLES A
IPC分类号： B25D9/10 , E01C23/12 , E21B1/34
CPC分类号： E01C23/125 , B25D9/10 , E21C3/18

4. 发明授权

US2327619A Rock drill 失效
公开(公告)号：US2327619A
公开(公告)日：1943-08-24
申请号：US41368941
申请日：1941-10-04
申请人： FRANCIS N BARD
发明人： BROWN JOSEPH H , JAGIEL JOHN F
IPC分类号： E21B1/34 , E21B21/01
CPC分类号： E21C3/18 , E21B21/01

5. 发明授权

US2178246A Pneumatic percussion tool 失效
标题翻译：气动冲击工具
公开(公告)号：US2178246A
公开(公告)日：1939-10-31
申请号：US17768937
申请日：1937-12-02
申请人： TOWLE CHARLES L
发明人： TOWLE CHARLES L
IPC分类号： E01B27/14 , E21B1/34
CPC分类号： E01B27/14

6. 发明授权

US2101608A Internal combustion hammer 失效
公开(公告)号：US2101608A
公开(公告)日：1937-12-07
申请号：US73955334
申请日：1934-08-13
申请人： GAS TOOL PATENTS CORP
发明人： BODDINGHOUSE EMMONS R
IPC分类号： B25D9/10 , E21B1/34
CPC分类号： B25D9/10

7. 发明授权

US1656567A Fluid-pressure starter for gasoline drills 失效
标题翻译：用于汽油钻机的流体压力起动器
公开(公告)号：US1656567A
公开(公告)日：1928-01-17
申请号：US40672520
申请日：1920-08-28
申请人： FRED E TASKER
发明人： RICE JR JOHN V
IPC分类号： E21B1/34
CPC分类号： E21C3/18

8. 发明授权

US1653373A Gasoline rock drill 失效
标题翻译：汽油凿岩机
公开(公告)号：US1653373A
公开(公告)日：1927-12-20
申请号：US46077621
申请日：1921-04-12
申请人： FRED E TASKER
发明人： RICE JR JOHN V
IPC分类号： E21B1/34
CPC分类号： E21C3/18 , Y10T74/1526 , Y10T74/18312

9. 发明授权

US1092886A Rock-drill. 失效
公开(公告)号：US1092886A
公开(公告)日：1914-04-14
申请号：US1907369152
申请日：1907-04-19
申请人： YOUMANS CHARLES ERNEST
发明人： YOUMANS CHARLES ERNEST
IPC分类号： E21B1/34
CPC分类号： B25C1/08 , F02B71/04

10. 发明授权

US4286675A Narrow profile power handle for line trimmer and the like 失效
公开(公告)号：US4286675A
公开(公告)日：1981-09-01
申请号：US51950
申请日：1979-06-25
申请人： Lloyd H. Tuggle
发明人： Lloyd H. Tuggle
IPC分类号： B24B23/00 , A01D34/68 , A01D34/90 , A01G3/00 , A01G3/08 , B25F3/00 , B25F5/00 , B27B9/00 , B27B17/00 , E21B1/34 , F01N3/06 , F01N13/14 , F02B63/02 , F02B75/02 , E21B7/22 , E21B3/00
CPC分类号： F02B63/02 , A01D34/90 , A01G3/00 , A01G3/053 , B25F3/00 , B27B17/00 , F01N13/14 , F01N2230/06 , F01N2590/06 , F01N3/06 , F02B2075/025 , F02N3/02 , Y10S173/02
摘要： A narrow profile power handle uniquely adapted for use as a flexible line trimmer having improved handling and safety features is disclosed. The power handle is also equipped with a quick connect and disconnect coupling and is useful for driving attachments to produce hand held rotary implements and tools such as brush cutters, edgers, cultivators, drills, etc., hand held reciprocating implements and tools such as hedge clippers, saws, etc., as well as portable water pumps, air compressors, generators, etc.The crankshaft of a two-stroke internal combustion engine is disposed along the longitudinal axis of a narrow profile housing which includes a rear handle having a hand grip portion disposed above and projecting rearwardly parallel to the axis of the housing. The cylinder extends upwardly from the crankcase, the carburetor is disposed below the crankcase, the flywheel, ignition system and starter to the rear, and the gas tank is disposed below the rear handle. The muffler is disposed along the forward face of the housing for discharging products of combustion forwardly of the housing and away from the operator, thereby permitting the assembly to be rotated for various trimming operations without exposing the operator to the risk of burn injury. A recoil starter handle, a choke control, throttle control and ignition kill switch are conveniently clustered around and near the hand grip portion of the rear handle which allows the operator to observe and exercise positive control over both the power handle and the cutter head while starting and operating the engine. The power handle includes a quick disconnect coupling for attaching the portable power unit to drive various attachments. As a result of this arrangement, the power handle is generally symmetrical about the longitudinal vertical plane and is of minimum width.The drive shaft of the line trimmer assembly is aligned with the crankshaft of the engine and a forward handle is disposed above the drive shaft ahead of the engine housing. As a result, the center of gravity of the overall line trimmer assembly is below and between the forward and rearward handles, thereby providing improved balance and maneuverability.

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