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公开(公告)号：US11365950B1
公开(公告)日：2022-06-21
申请号：US16732429
申请日：2020-01-02
Applicant: James J. Kempf , Rex E. Isenhower , Randy Kitts
Inventor： James J. Kempf , Rex E. Isenhower , Randy Kitts
Abstract: An accessory mount having a plurality of uses and mounting provisions wherein an accessory may be operably removed and engaged with the accessory mount. The accessory mount may be worn on a belt or engaged with any end use article, such as a bow, a tree, a tree stand. The accessory mount shall have radial indexing provisions, allowing a receiver to rotate about the axis of the provisions.
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公开(公告)号：US09829268B1
公开(公告)日：2017-11-28
申请号：US15603606
申请日：2017-05-24
Applicant: James J. Kempf , Rex E. Isenhower
Inventor： James J. Kempf , Rex E. Isenhower
CPC classification number: F41B5/123 , F41B5/105 , Y10S124/90
Abstract: A projectile launching device includes self-timing without cam lean. The projectile launching device may include a rail, a riser, two energy storing components, (such as two limbs), two cams, a launch string, and at least one cable. The ends of the launch string are attached to the two cams. Opposing ends of first and second cables may be coupled to the rail or riser. A mid-portion of the first and second cables are slideably engaged with the first and second cams, respectively. Alternatively, a single cable may replace the first and second cables. The two cams are preferably built as mirror images of each other at a centerline of the rail. The two cams include a launch string track, having identical, but mirrored, upper and lower cable tracks.
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公开(公告)号：US08875687B1
公开(公告)日：2014-11-04
申请号：US13687534
申请日：2012-11-28
Applicant: Dorge O. Huang , James J. Kempf
Inventor： Dorge O. Huang , James J. Kempf
CPC classification number: F41B5/143
Abstract: A tangent point arrow rest preferably includes an outer housing, at least two bearing assemblies and a mounting device. The outer housing includes an arrow clearance opening for insertion of an arrow shaft. Threaded bearing holes are formed through the outer housing. The mounting device may be a mounting rod or at least one boss slot, which extend from the outer housing. Each bearing assembly preferably includes a bearing housing, a tension adjustment screw, a bearing housing cap, a contact ball bearing, an inner ball bearing and a compression spring. The inner ball bearing, the tension spring and tension adjustment screw are retained in the bearing housing. The bearing housing is threaded into one of the threaded bearing holes. The bearing housing cap is threaded on to the bearing housing to retain the contact ball bearing.
Abstract translation: 切点箭头支撑件优选地包括外壳体，至少两个轴承组件和安装装置。 外壳包括用于插入箭头轴的箭头间隙开口。 螺纹轴承孔通过外壳形成。 安装装置可以是从外壳延伸的安装杆或至少一个凸起槽。 每个轴承组件优选地包括轴承壳体，张力调节螺钉，轴承壳体盖，接触球轴承，内球轴承和压缩弹簧。 内滚珠轴承，张力弹簧和张力调节螺丝都保留在轴承座中。 轴承座被拧入一个螺纹轴承孔。 轴承座盖螺纹连接到轴承座上以保持接触球轴承。
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公开(公告)号：US08770178B2
公开(公告)日：2014-07-08
申请号：US13066146
申请日：2011-04-07
Applicant: James J. Kempf
Inventor： James J. Kempf
CPC classification number: F41B5/1469 , F41A19/10 , F41B5/12 , F41B5/123
Abstract: A trigger assembly for a crossbow or other weapon system. The trigger assembly includes a trigger arm coupled between a trigger and a sear. The trigger arm is not parallel to the line of fire, thereby allowing for increased mechanical advantage and a smoother, safer trigger pull. The trigger assembly incorporates various safety measures, including a dry fire mechanism which prevents the unintentional damaging and potentially dangerous release of the bowstring before an arrow is positioned on the rail of the crossbow. The trigger assembly allows for various adjustments to vary the trigger length and pull, while maintaining smoothness and preventing the unintentional or inadvertent release of the bowstring.
Abstract translation: 用于弩或其他武器系统的扳机组件。 触发器组件包括耦合在触发器和触发器之间的触发臂。 触发臂不平行于火线，从而允许增加机械优点和更平滑，更安全的触发器拉动。 触发器组合包括各种安全措施，包括干火防止机构，其防止在箭头定位在弩弓的轨道之前的无意的损坏和潜在的危险释放弓弦。 触发器组件允许各种调整以改变触发器长度和拉力，同时保持平滑度并防止弓弦的无意或无意的释放。
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公开(公告)号：US08505527B2
公开(公告)日：2013-08-13
申请号：US12951552
申请日：2010-11-22
Applicant: James J. Kempf
Inventor： James J. Kempf
IPC: F41B5/06
CPC classification number: F41B5/066
Abstract: A quiver for holding arrows is one-hand releasably attachable to an archery bow. A quiver attachment bracket having opposing grooves is mountable to the bow. The quiver has two parallel elongated struts supporting an arrowhead hood and at least one arrow shaft holder. A clamp is mounted to and between the struts having biased first and second jaws extending transversely of the quiver with each jaw having an adjacent one-hand grippable handle extending transversely of the quiver opposite of the jaws. The biased jaws each have a tongue that is lockable into one of the grooves.
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Patent Agency Ranking
公开(公告)号：US07708001B2
公开(公告)日：2010-05-04
申请号：US11386653
申请日：2006-03-22
Applicant: James J. Kempf
Inventor： James J. Kempf
IPC: F41B5/10
Abstract: A bow having an increased powerstroke allowing for reduced draw weight and increased speed. The bow is provided with a riser and a pair of limbs. A pulley is coupled to one limb and a cam is coupled to the other at a first journal point and second journal point respectively. The powerstroke is increased by locating the bowstring on the pulley and cam between the riser and the journal points.
Abstract translation: 具有增加的动力行程的弓具有减少的牵引重量和增加的速度。 弓提供了一个提升管和一对肢体。 滑轮联接到一个肢体，并且凸轮分别在第一轴颈点和第二轴颈点处彼此连接。 通过将弓弦定位在滑轮上并将凸轮放置在提升器和轴颈点之间来增加动力行程。
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公开(公告)号：US20090194086A1
公开(公告)日：2009-08-06
申请号：US12321078
申请日：2009-01-14
Applicant: James J. Kempf
Inventor： James J. Kempf
CPC classification number: F41B5/1469 , F41A19/10 , F41B5/12 , F41B5/123
Abstract: A trigger assembly for a crossbow or other weapon system. The trigger assembly includes a trigger arm coupled between a trigger and a sear. The trigger arm is not parallel to the line of fire, thereby allowing for increased mechanical advantage and a smoother, safer trigger pull. The trigger assembly incorporates various safety measures, including a dry fire mechanism which prevents the unintentional damaging and potentially dangerous release of the bowstring before an arrow is positioned on the rail of the crossbow. The trigger assembly allows for various adjustments to vary the trigger length and pull, while maintaining smoothness and preventing the unintentional or inadvertent release of the bowstring.
Abstract translation: 用于弩或其他武器系统的扳机组件。 触发器组件包括耦合在触发器和触发器之间的触发臂。 触发臂不平行于火线，从而允许增加机械优点和更平滑，更安全的触发器拉动。 触发器组合包括各种安全措施，包括干火防止机构，其防止在箭头定位在弩弓的轨道之前的无意的损坏和潜在的危险释放弓弦。 触发器组件允许各种调整以改变触发器长度和拉力，同时保持平滑度并防止弓弦的无意或无意的释放。
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公开(公告)号：US5538101A
公开(公告)日：1996-07-23
申请号：US168758
申请日：1993-12-16
Applicant: James J. Kempf
Inventor： James J. Kempf
Abstract: A hunter's tree stand with a platform detachably mounted to an upright mounting bracket which mounts to a tree trunk. A supporting arm pivots about the lower end of the mounting bracket and may be attached at various points long the platform to allow the platform to be leveled. The platform has wing extensions which may be folded around hinges. The platform may be easily removed from the mounting bracket or folded up against the tree. A ladder which may be disassembled for transport, is attachable to the platform. Leveling extensions are provided on the legs of the ladder. An optional seat assembly is provided. An alternative embodiment provides a platform fixed to a ladder member, for use as a ladder stand.
Abstract translation: 一个猎人的树架，平台可拆卸地安装在直立安装支架上，该支架安装在树干上。 支撑臂围绕安装支架的下端枢转，并且可以在平台的多个点处附接以允许平台平整。 该平台具有可以围绕铰链折叠的机翼延伸部。 该平台可以容易地从安装支架上移除或折叠在树上。 可以拆卸运输的梯子可附接到平台上。 梯子的腿上设有调平延伸部分。 提供了可选的座椅组件。 替代实施例提供了固定到梯子构件的平台，用作梯架。
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公开(公告)号：US12025402B1
公开(公告)日：2024-07-02
申请号：US18595684
申请日：2024-03-05
Applicant: David A. Barnett , James J. Kempf
Inventor： David A. Barnett , James J. Kempf
CPC classification number: F41B5/1469 , F41B5/12
Abstract: A projectile launching device having a bowstring carrier operably coupled with a bowstring carrier traverse assembly. The bowstring carrier traverse assembly having a motor operable with a spool and a connecting component, wherein when the bowstring is not retaining a bowstring and the bowstring carrier is in the cocked position, the traverse assembly selectively returns the bowstring carrier to the at-rest position.
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公开(公告)号：US10408560B1
公开(公告)日：2019-09-10
申请号：US16183781
申请日：2018-11-08
Applicant: James J. Kempf , Rex E. Isenhower
Inventor： James J. Kempf , Rex E. Isenhower
Abstract: An extreme reverse style crossbow, a reverse style crossbow or a reverse style crossbow with a single stirrup includes two cams, one string, two pulleys and two cables. The pulleys are rotatably retained on the limbs, adjacent the two cams. A dual stirrup crossbow includes two cams, one string, two pulleys and one cable. The two pulleys are rotatably retained on two cam axles. A second dual stirrup crossbow includes two cams, one string, two pulleys and two cables. The two pulleys are rotatably retained on two cam axles. A non-conventional crossbow includes two cams, one string, two pulleys and one cable. The two cams are rotatably retained on limbs between the proximal and distal ends thereof. The two pulleys are rotatably retained on two cam axles. A vertical bow includes two cams, one string, two pulleys and one cable. The two pulleys are rotatably retained on two cam axles.
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