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1. 发明授权

US6059541A Air inlet cover for portable blower/vacuum 失效
标题翻译：便携式鼓风机/真空吸气罩
公开(公告)号：US6059541A
公开(公告)日：2000-05-09
申请号：US38365
申请日：1998-03-10
申请人： Thomas J. Beckey , Steven R. Porter , Chadwick A. Shaffer , Steven J. Svoboda
发明人： Thomas J. Beckey , Steven R. Porter , Chadwick A. Shaffer , Steven J. Svoboda
IPC分类号： A47L5/14 , A47L9/02 , F04B49/00
CPC分类号： A47L9/02 , A01G1/125 , A47L5/14
摘要： An improved air inlet cover and impeller for a convertible electric blower/vacuum. The blower/vac includes an electric motor which drives an impeller. A plurality of blades located on the impeller define a frusto-conical surface of revolution. The air inlet cover includes an integral, frusto-conical pressure ring which is located offset but generally congruent to the surface of revolution defined by the impeller blades. The cover additionally includes an air grate that allows the passage of air but prevents the passage of other objects. The grate also includes a choke member for adjusting the effective area of the air inlet into the blower/vac to control the exit air volume and velocity of the blower. The cover also includes a bell-mouthed opening integral with the choke member to increase the efficiency of the blower/vac when in the blower mode.
摘要翻译：改进的空气入口盖和用于可转换电动鼓风机/真空的叶轮。鼓风机/ vac包括驱动叶轮的电动马达。位于叶轮上的多个叶片限定了旋转的截头圆锥形表面。空气入口盖包括整体的截头圆锥形压力环，其位于偏置但大体上与叶轮叶片限定的旋转表面一致。盖子还包括允许空气通过但防止其它物体通过的空气格栅。格栅还包括用于调节进入鼓风机/ vac的进气口的有效面积的阻风构件，以控制鼓风机的出口空气体积和速度。盖子还包括与阻风构件成一体的喇叭口，以在鼓风机模式下提高鼓风机/ vac的效率。

2. 发明授权

US5979013A Portable blower with noise reduction 失效
标题翻译：便携式鼓风机，降噪
公开(公告)号：US5979013A
公开(公告)日：1999-11-09
申请号：US90481
申请日：1998-06-04
申请人： Thomas J. Beckey , Steven R. Porter , Rodney D. Lund , Chadwick A. Shaffer , Steven J. Svoboda , Steven T. O'Brien
发明人： Thomas J. Beckey , Steven R. Porter , Rodney D. Lund , Chadwick A. Shaffer , Steven J. Svoboda , Steven T. O'Brien
IPC分类号： A01G1/12 , A47L5/14 , A47L9/00 , A47L9/02
CPC分类号： A47L5/14 , A01G1/125 , A47L9/0081 , A47L9/02
摘要： The present invention provides for noise reduction during operation of a portable blower by reducing the noise or acoustic energy escaping from the inlet of the blower housing. The noise reduction is achieved in one respect by placing sound absorbing material in a plenum attached to the inlet opening of the blower housing. Other features of the preferred plenum include louvered openings and angled engagement members to draw the plenum tightly against the blower housing.
摘要翻译：本发明通过减少从鼓风机壳体的入口逸出的噪声或声能来提供便携式鼓风机操作期间的噪声降低。在一个方面，通过将吸音材料放置在连接到鼓风机壳体的入口的增压室中来实现降噪。优选的增压室的其他特征包括百叶窗开口和成角度的接合构件，以将气室紧紧地压靠鼓风机壳体。

3. 发明授权

US6158082A Portable blower with blower tube noise reduction 有权
标题翻译：便携式风机，鼓风机降噪
公开(公告)号：US6158082A
公开(公告)日：2000-12-12
申请号：US244868
申请日：1999-02-05
申请人： Thomas J. Beckey , Rodney D. Lund , Steve R. Porter , Chadwick A. Shaffer , Steven J. Svoboda
发明人： Thomas J. Beckey , Rodney D. Lund , Steve R. Porter , Chadwick A. Shaffer , Steven J. Svoboda
IPC分类号： A01G1/12 , A47L5/14 , A47L9/00 , A47L9/02 , A47L7/04
CPC分类号： A01G1/125 , A47L5/14 , A47L9/0081 , A47L9/02
摘要： The present invention provides for noise reduction during operation of a portable blower by reducing the noise or acoustic energy escaping from the housing outlet and blower tube. The noise reduction is achieved by placing sound absorbing material in the blower tube. The sound absorbing material may include flared upstream and downstream ends to reduce turbulence. The sound absorbing material may be held within the blower tube by an insert frame such that substantial portions of the sound absorbing material are exposed to air passing through the blower tube. Also disclosed is a sound absorbing insert that can be placed within an existing blower tube to retrofit portable blowers with noise reduction technology.
摘要翻译：本发明通过减少从壳体出口和鼓风机管排出的噪声或声能来提供便携式鼓风机操作期间的噪声降低。通过将吸声材料放置在鼓风机管中来实现降噪。吸声材料可以包括扩张的上游和下游端以减少湍流。吸音材料可以通过插入框架保持在鼓风机管内，使得吸声材料的大部分暴露于通过鼓风机管的空气。还公开了一种吸音插入件，其可以放置在现有的鼓风机管内，以使用降噪技术来改造便携式鼓风机。

4. 发明授权

US06324720B1 Portable blower tube noise reduction 失效
标题翻译：便携式风机管降噪
公开(公告)号：US06324720B1
公开(公告)日：2001-12-04
申请号：US09664171
申请日：2000-09-18
申请人： Thomas J. Beckey , Rodney D. Lund , Steve R. Porter , Chadwick A. Shaffer , Steven J. Svoboda
发明人： Thomas J. Beckey , Rodney D. Lund , Steve R. Porter , Chadwick A. Shaffer , Steven J. Svoboda
IPC分类号： F01N700
CPC分类号： A47L9/02 , A01G20/43 , A47L5/14 , A47L9/0081
摘要： The present invention provides for noise reduction during operation of a portable blower by reducing the noise or acoustic energy escaping from the housing outlet and blower tube. The noise reduction is achieved by placing sound absorbing material in the blower tube. The sound absorbing material may include flared upstream and downstream ends to reduce turbulence. The sound absorbing material may be held within the blower tube by an insert frame such that substantial portions of the sound absorbing material are exposed to air passing through the blower tube. Also disclosed is a sound absorbing insert that can be placed within an existing blower tube to retrofit portable blowers with noise reduction technology.
摘要翻译：本发明通过减少从壳体出口和鼓风机管排出的噪声或声能来提供便携式鼓风机操作期间的噪声降低。通过将吸声材料放置在鼓风机管中来实现降噪。吸声材料可以包括扩张的上游和下游端以减少湍流。吸音材料可以通过插入框架保持在鼓风机管内，使得吸声材料的大部分暴露于通过鼓风机管的空气。还公开了一种吸音插入件，其可以放置在现有的鼓风机管内，以使用降噪技术来改造便携式鼓风机。

5. 发明授权

US06742263B2 Filament trimmer with adjustable cutoff blade 有权
标题翻译：长丝修剪器带可调节切割刀片
公开(公告)号：US06742263B2
公开(公告)日：2004-06-01
申请号：US10117683
申请日：2002-04-04
申请人： Bart T. Ellson , Chadwick A. Shaffer , Thomas J. Beckey
发明人： Bart T. Ellson , Chadwick A. Shaffer , Thomas J. Beckey
IPC分类号： B26B700
CPC分类号： A01D34/4163
摘要： A filament trimmer includes a rotatable trimmer head having an outwardly extending filament. The trimmer has a rear shield and a front wire guard. A cutoff blade is adjustably mounted on the rear shield to move between two different radially inward and outward positions. In the radially outward position, the cutoff blade cuts off the filament at a length in which the filament extends beyond the front guard prior to the filament becoming shortened due to breakage or wear. In the radially inward position, the cutoff blade cuts off the filament at a length in which the filament extends short of the front guard prior to the filament becoming shortened due to breakage or wear.
摘要翻译：长丝修剪器包括具有向外延伸的细丝的可旋转修剪器头。修剪器具有后屏蔽和前线保护。切断刀片可调节地安装在后护罩上以在两个不同的径向向内和向外位置之间移动。在径向向外的位置，切断刀片在长丝由于断裂或磨损而缩短之前以长度延伸超过前护罩的长度切断长丝。在径向向内的位置，切断刀片在长丝由于断裂或磨损而在长丝变短之前以长度延伸的方式切断长丝。

6. 发明申请

US20120138717A1 DEBRIS VACUUM WITH SUPPLEMENTAL DEBRIS SHEARING SURFACE 有权
标题翻译： DEBRIS真空与补充修剪表面
公开(公告)号：US20120138717A1
公开(公告)日：2012-06-07
申请号：US12961049
申请日：2010-12-06
申请人： Steven J. Svoboda , Chadwick A. Shaffer
发明人： Steven J. Svoboda , Chadwick A. Shaffer
IPC分类号： B02C23/00
CPC分类号： E01H1/0809 , A01G20/43 , E01H1/0827
摘要： A debris vacuum having one or more rotating shearing edges and at least one supplemental shearing edge in close proximity to the rotating shearing edges. The supplemental shearing edge may be stationary and attached, for example, to a housing containing the rotating shearing edge, or to a vacuum tube that is itself attachable to the housing.
摘要翻译：具有一个或多个旋转剪切边缘和至少一个补充剪切边缘的碎片真空，其紧邻旋转的剪切边缘。补充的剪切边缘可以是固定的并且例如附接到包含旋转剪切边缘的壳体，或者附接到本身可附接到壳体的真空管。

7. 发明授权

US06442790B1 Portable blower/vacuum having air inlet cover attachable to blower tube 有权
标题翻译：便携式吹风机/真空吸尘器可以连接到鼓风机管上
公开(公告)号：US06442790B1
公开(公告)日：2002-09-03
申请号：US09779966
申请日：2001-02-09
申请人： Steven J. Svoboda , Chadwick A. Shaffer
发明人： Steven J. Svoboda , Chadwick A. Shaffer
IPC分类号： A47L514
CPC分类号： E01H1/0809 , A01G20/43 , A47L5/14 , E01H1/0836
摘要： A blower/vacuum having an air inlet cover and a blower tube, both of which attach to a blower housing for operation in a blower mode. The air inlet cover is preferably able to removably attach to the blower housing and the blower tube. Blower/vacuums of the present invention may generally prohibit operation unless both the blower tube and the air inlet cover are first installed. The blower/vacuum is further adapted to operate in a vacuum mode by removing the air inlet cover and blower tube and replacing the same with a vacuum tube assembly and a vacuum collection container, respectively.
摘要翻译：具有进气盖和鼓风机管的鼓风机/真空机，两者都附接到鼓风机壳体，以在鼓风机模式下操作。空气入口盖优选地能够可移除地附接到鼓风机壳体和鼓风机管。本发明的鼓风机/吸尘器通常可以禁止操作，除非首先安装鼓风机管和进气口盖。鼓风机/真空机还适用于通过移除空气入口盖和鼓风机管并且分别用真空管组件和真空收集容器代替它们在真空模式下操作。

8. 发明授权

US08602334B2 Debris vacuum with supplemental debris shearing surface 有权
标题翻译：碎片真空与补充碎片剪切面
公开(公告)号：US08602334B2
公开(公告)日：2013-12-10
申请号：US12961049
申请日：2010-12-06
申请人： Steven J. Svoboda , Chadwick A. Shaffer
发明人： Steven J. Svoboda , Chadwick A. Shaffer
IPC分类号： B02C23/28
CPC分类号： E01H1/0809 , A01G20/43 , E01H1/0827
摘要： A debris vacuum having one or more rotating shearing edges and at least one supplemental shearing edge in close proximity to the rotating shearing edges. The supplemental shearing edge may be stationary and attached, for example, to a housing containing the rotating shearing edge, or to a vacuum tube that is itself attachable to the housing.
摘要翻译：具有一个或多个旋转剪切边缘和至少一个补充剪切边缘的碎片真空，其紧邻旋转的剪切边缘。补充的剪切边缘可以是固定的并且例如附接到包含旋转剪切边缘的壳体，或者附接到本身可附接到壳体的真空管。

9. 外观设计

USD461604S1 Housing for a blower/vacuum 失效
标题翻译：鼓风机/真空的外壳
公开(公告)号：USD461604S1
公开(公告)日：2002-08-13
申请号：US29136944
申请日：2001-02-09
申请人： David J. Martin , Steven J. Svoboda , Chadwick A. Shaffer
设计人： David J. Martin , Steven J. Svoboda , Chadwick A. Shaffer

10. 外观设计

USD676876S1 Handle for a ground-working implement 有权
标题翻译：处理地勤工具
公开(公告)号：USD676876S1
公开(公告)日：2013-02-26
申请号：US29422946
申请日：2012-05-25
申请人： David J. Martin , Chadwick A. Shaffer
设计人： David J. Martin , Chadwick A. Shaffer

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