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1. 发明授权

US4721240A Cam-controlled self-contained internal combustion fastener driving tool 失效
标题翻译：凸轮控制的独立内燃紧固件驱动工具
公开(公告)号：US4721240A
公开(公告)日：1988-01-26
申请号：US881343
申请日：1986-07-02
申请人： Gilbert A. Cotta
发明人： Gilbert A. Cotta
IPC分类号： B25C1/08
CPC分类号： B25C1/08
摘要： A fastener driving tool powered by internal combustion of an air/fuel mixture. The tool body contains connected upper and lower coaxial cylinders. The upper cylinder is provided with a piston assembly and is connected by a one-way valve to a combustion air chamber. The lower cylinder contains a piston/driver assembly and is surrounded by and connected to a return air chamber. The upper cylinder piston assembly and the lower cylinder piston/driver assembly, when in their normal unactuated positions, define therebetween a combustion chamber provided with an ignition device. A positive trigger-actuated cam system, upon actuation of the trigger, is configured to open a fuel valve to introduce a measured amount of gaseous fuel from a source thereof into the combustion chamber; to thereafter open an air valve to introduce a measured quantity of air from the combustion air chamber into the combustion chamber; to next actuate the ignition device to combust the aire fuel mixture causing the lower cylinder piston/driver assembly to drive a fastener and to fill the return air chamber with air under pressure in the upper cylinder piston assembly to replenish air under pressure in the combustion air chamber; and finally to actuate a control valve operating an exhaust valve eliminating products of combustion enabling the upper cylinder piston assembly to return to its normal position and air from the return air chamber to return the lower cylinder piston/driver assembly to its normal position.

2. 发明授权

US4630766A Fastener driving apparatus and methods and fastener supply 失效
标题翻译：紧固件驱动装置及方法及紧固件供应
公开(公告)号：US4630766A
公开(公告)日：1986-12-23
申请号：US499862
申请日：1983-06-01
申请人： Jay M. Steeves , Gilbert A. Cotta
发明人： Jay M. Steeves , Gilbert A. Cotta
IPC分类号： B25B31/00 , B25C1/00 , B21J15/28
CPC分类号： B25B31/00 , B25C1/005 , Y10T29/53839
摘要： A fastener supply includes a collated strip of fasteners having laterally extending ears. The fasteners are held together by spaced, parallel, preferably flexible elongated carrier strips, adhered to the ears. A magazine feeds fasteners to an inclined or tilted position in a drive station of a fastener driving gun. The apparatus is manipulated over a lug so that the lug extends through a fastener to be driven and engages a locating surface for gun and fastener alignment. Fasteners are rotated, as they are driven, from the inclined to a perpendicular position with respect to the lug. Methods of driving are included.
摘要翻译：紧固件供应包括具有横向延伸的耳朵的整齐的紧固件带。紧固件通过间隔的，平行的，优选地柔性的细长的载体带固定在一起，粘附到耳朵上。杂志将紧固件馈送到紧固件驱动枪的驱动站中的倾斜或倾斜位置。该装置在凸耳上操作，使得凸耳延伸穿过待驱动的紧固件并与用于喷枪和紧固件对准的定位表面接合。当紧固件被驱动时，紧固件相对于凸耳倾斜到垂直位置。包括驾驶方法。

3. 发明授权

US4646852A Pneumatic mallet 失效
标题翻译：气动槌
公开(公告)号：US4646852A
公开(公告)日：1987-03-03
申请号：US701918
申请日：1985-02-14
申请人： Gilbert A. Cotta
发明人： Gilbert A. Cotta
IPC分类号： B25D17/06
CPC分类号： B25D17/06 , B25D9/08
摘要： A hand tool in the form of a pneumatically actuated mallet. The tool comprises a conventional pneumatic motor of the type employed in pneumatic fastener driving tools, including a tool body having a main cylinder, a piston/driver assembly, trigger-actuated control valve means, and means for connection to a source of air under pressure. A guide body is affixed to the tool body beneath the main cylinder and has a longitudinal bore to slidably guide the driver. A housing is supported by the free end of the guide body and comprises a closed first end adjacent the guide body with a perforation for passage of the driver therethrough, a peripheral wall and an open second end. A mallet is provided having a body portion and a slightly larger head portion with a shoulder formed therebetween. A retainer is affixed to the housing wall partially closing the second end of the housing. The mallet head portion is reciprocally mounted in the housing with its body portion extending through an opening in the retainer. A spring biases the mallet head shoulder into abutment with the retainer, in which position the mallet head is just out of reach of the driver. The mallet body mounts a nose piece. When the nose piece is pressed against a work piece and the trigger is actuated, the piston/driver assembly accelerates forwardly and impacts the mallet head, generating a push force in the mallet and its nose piece.
摘要翻译：气动锤的形式的手工工具。该工具包括用于气动紧固件驱动工具中的常规气动马达，其包括具有主缸的工具主体，活塞/驱动器组件，触发器致动的控制阀装置，以及用于连接到压力下的空气源的装置。引导体固定在主缸下方的工具主体上，并具有可滑动地引导驾驶员的纵向孔。壳体由引导体的自由端支撑，并且包括邻近引导体的封闭的第一端，穿孔用于使驱动器通过其中，周壁和开放的第二端。提供了一种具有主体部分和稍微较大的头部的锤子，其中形成有肩部。保持器固定到壳体壁上，部分地封闭壳体的第二端。槌头部分往复安装在壳体中，其主体部分延伸穿过保持器中的开口。弹簧偏压槌头肩部与保持器邻接，在该位置，槌头刚好不在驾驶员的距离处。槌体安装鼻子。当鼻部被压在工件上并且触发器被致动时，活塞/驱动器组件向前加速并撞击槌头，在锤子及其鼻部件中产生推力。

4. 发明授权

US4821941A Power regulator for a pneumatic fastener driving tool 失效
标题翻译：用于气动紧固件驱动工具的动力调节器
公开(公告)号：US4821941A
公开(公告)日：1989-04-18
申请号：US85715
申请日：1987-08-18
申请人： Gilbert A. Cotta
发明人： Gilbert A. Cotta
IPC分类号： B23P19/02 , B25C1/04
CPC分类号： B25C1/008 , B25C1/042
摘要： A regulator for adjusting the amount of power generated by a pneumatic fastener driving tool of the type having a body connected to a source of air under pressure and containing a cylinder with a piston/driver assembly mounted therein and a main valve. The main valve is slidably supported above the cylinder on a centerpost affixed to a cap closing the top of that portion of the tool body surrounding the cylinder. The main valve is shiftable on the centerpost between a closed position engaging the upper end of the cylinder and shutting off the cylinder from the supply of air under pressure within the tool body and opening vent passages in the centerpost and cap to vent the cylinder volume above the piston to atmosphere, and an open position closing the vent passages and opening the upper end of the cylinder to air under pressure within the tool body to actuate the tool. The regulator comprises an adjustable stop mounted in the centerpost and extending thereabout. The stop is shiftable toward and away from the cylinder and determines the open position of the main valve and thus the size of the opening between the cylinder and the main valve, which determines the power generated by the tool. An adjustment screw is rotatively mounted in the cap, having a first end above the cap and provided with a knob and a second end threadedly engaged in the stop to shift the stop.

5. 发明授权

US4739915A Simplified self-contained internal combustion fastener driving tool 失效
标题翻译：简化的独立内燃紧固件驱动工具
公开(公告)号：US4739915A
公开(公告)日：1988-04-26
申请号：US881337
申请日：1986-07-02
申请人： Gilbert A. Cotta
发明人： Gilbert A. Cotta
IPC分类号： B25C1/08
CPC分类号： B25C1/08
摘要： A fastener driving tool powered by internal combustion of an oxidizer/fuel mixture. The tool body contains a cylinder provided with a piston/driver assembly. The cylinder is surrounded by and connected to a return air chamber. A combustion chamber, provided with an ignition device, is located at the upper end of the cylinder. A positive trigger-actuated cam system, upon actuation of the trigger, is configured to open a fuel valve to introduce a measured amount of gaseous fuel from a source thereof into the combustion chamber; to thereafter open an oxidizer valve to introduce a measured quantity of gaseous oxidizer from a source thereof into the combustion chamber; to next actuate the ignition device to combust the oxidizer/fuel mixture causing the piston/driver assembly to drive a fastener and to fill the return air chamber with air under pressure; and finally to actuate a pilot valve operating an exhaust valve eliminating products of combustion from the combustion chamber, enabling air from the return air chamber to return the piston/driver assembly to its normal position. The sources of gaseous fuel and gaseous oxidizer comprise canisters of each replaceably mounted within the tool body.

6. 发明授权

US4717060A Self-contained internal combustion fastener driving tool 失效
标题翻译：独立内燃紧固件打卡工具
公开(公告)号：US4717060A
公开(公告)日：1988-01-05
申请号：US881339
申请日：1986-07-02
申请人： Gilbert A. Cotta
发明人： Gilbert A. Cotta
IPC分类号： B25C1/08
CPC分类号： B25C1/08
摘要： A fastener driving tool powered by internal combustion of an air/fuel mixture. A tool body has located therein upper and lower coaxial cylinders containing upper and lower pistons, respectively, attached to a common driver and forming a piston/driver assembly shiftable between a normal retracted position and an extended fastener driving position. A combustion chamber at the upper end of the lower cylinder and having an ignition device therein. The tool body contains a combustion air chamber and at least one return air chamber, together with a source of gaseous fuel. A trigger actuated control valve is configured to introduce a measured air/fuel mixture from the combustion air chamber and the source of gaseous fuel into the combustion chamber, to actuate the ignition means to combust the air/fuel mixture and shift the piston/driver assembly to its extended position, to introduce air from the at least one return air chamber to the upper cylinder beneath the upper piston to return the piston/driver assembly to its normal position, to exhaust the combustion chamber and to replenish air in the combustion air chamber and the at least one return air chamber.

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