公开(公告)号：US4683526A

公开(公告)日：1987-07-28

申请号：US931945

申请日：1986-11-19

申请人： Jens C. Krogsrud ,  Kai O. Sorensen

发明人： Jens C. Krogsrud ,  Kai O. Sorensen

IPC分类号： F21S6/00 ,  F21S8/00 ,  F21V7/00 ,  F21V7/05 ,  F21V7/09 ,  F21V13/10 ,  F21Y103/00

CPC分类号： F21S6/003 ,  F21S8/00 ,  F21V13/10 ,  F21V11/02 ,  F21V7/09 ,  F21Y2103/00 ,  F21Y2103/37 ,  F21Y2113/00

摘要： An asymmetric lamp with an improved reflector assembly is disclosed. The lamp includes a head, a socket for receiving a light bulb, and a front reflector. The socket and the front reflector are mounted in the head. When the light bulb is inserted into the socket, the light bulb defines a transverse axis. The front reflector has a longitudinal cross-sectional shape that is either generally hyperbolic, generally parabolic, or generally elliptic. The front reflector is formed from a plurality of triangular facets. Adjacent facets define a line that is nonparallel to the transverse axis defined by the light bulb. The front reflector is mounted in the head so that the rear edge of the front reflector is positioned proximate the top of the light bulb. The lamp may include a back reflector, preferably made from a nonconductive material. The back reflector is positioned proximate the rear edge of the front reflector. The back reflector may have rounded upper and lower portions, which conform to the rounded top and bottom sections of the light bulb. The lower portion of the back reflector may extend forward of the bottom of the light bulb, and a notch may be formed in the lower portion of the back reflector. One or more louver strips may be located at the front edge of the front reflector.

摘要翻译： 公开了具有改进的反射器组件的非对称灯。 灯包括头部，用于接收灯泡的插座和前反射器。 插座和前反射器安装在头部。 当灯泡插入插座时，灯泡限定横轴。 前反射器具有纵向横截面形状，其通常为双曲线，通常为抛物线形，或者通常为椭圆形。 前反射器由多个三角形小平面形成。 相邻的小平面定义一条与灯泡所定义的横轴不平行的线。 前反射器安装在头部中，使得前反射器的后边缘靠近灯泡的顶部定位。 灯可以包括优选由非导电材料制成的后反射器。 后反射器位于前反射器的后边缘附近。 后反射器可以具有圆形的上部和下部，其符合灯泡的圆形顶部和底部。 背反射器的下部可以延伸到灯泡的底部的前方，并且可以在后反射器的下部形成凹口。 一个或多个百叶窗条可以位于前反射器的前边缘处。

公开(公告)号：US4298921A

公开(公告)日：1981-11-03

申请号：US87482

申请日：1979-10-23

申请人： Jens C. Krogsrud ,  Kai O. Soerensen

发明人： Jens C. Krogsrud ,  Kai O. Soerensen

IPC分类号： F21V17/00 ,  F21S6/00 ,  F21S8/00 ,  F21S13/02 ,  F21V20060101 ,  F21V1/00 ,  F21V1/08 ,  F21V1/10 ,  F21V1/14 ,  F21V1/24 ,  F21V7/00 ,  F21V7/04 ,  F21V7/05 ,  F21V7/09 ,  F21V7/22 ,  F21V17/02 ,  F21V17/06 ,  F21V19/00 ,  F21V21/26 ,  F21V21/30 ,  F21V23/04 ,  F21W131/402 ,  F21Y101/00

CPC分类号： F21V7/0066

摘要： An electric lamp which provides substantially uniform lighting throughout a work area. The area extends from directly under the lamp a substantial distance beyond the shade. A faceted reflector provides the desired distribution of the light.

摘要翻译： 一种在整个工作区域提供基本均匀照明的电灯。 该区域从灯下直接延伸超过阴影。 小平面反射器提供所需光的分布。

公开(公告)号：US4796162A

公开(公告)日：1989-01-03

申请号：US131869

申请日：1987-12-11

申请人： Jessan C. Krogsrud

发明人： Jessan C. Krogsrud

IPC分类号： F16M11/04 ,  F21V21/26 ,  F21V21/28 ,  F21V21/30

CPC分类号： F21S6/003 ,  F16M11/10 ,  F16M11/2064 ,  F16M11/2092 ,  F16M11/24 ,  F16M13/022 ,  F21V21/26 ,  F21V21/30 ,  F16M2200/044 ,  F16M2200/068 ,  F21V21/08

摘要： A counterbalanced arm assembly is disclosed which includes a mounting bracket and a first arm pivotally connected to the mounting bracket along a first pivot axis. The first arm includes an inner arm located within it which is pivotally connected to the mounting bracket along a second pivot axis. A spring carrier is located near the first pivot axis and a tension spring is connected between the carrier and the bracket. The spring carrier includes a lower end defining a pair of spaced bearing surfaces located respectively to engage a pair of bearing surfaces on the bracket, with the spring biasing the bearing surfaces into engagement and providing the counterbalancing forces for the arm assembly. The bearing surfaces of the spring carrier are located on opposite sides of the first pivot axis so that as the first arm is pivoted about its first pivot axis in either direction from the vertical, one or the other of the spring carrier bearing surfaces engages the bearing surfaces of the bracket causing the glider to exert a counterbalancing force against one or the other of the inner surfaces of the first arm. The spring provides the exact counterbalancing force to the arm assembly at all angles to which the arm can be moved.

摘要翻译： 公开了一种平衡臂组件，其包括安装支架和沿着第一枢轴枢转地连接到安装支架的第一臂。 第一臂包括位于其内的内臂，其沿着第二枢转轴线枢转地连接到安装支架。 弹簧托架位于第一枢转轴线附近，并且拉伸弹簧连接在托架和托架之间。 弹簧支架包括限定一对间隔开的支承表面的下端，分别位于支架上的一对支承表面上，弹簧将支承面偏置成啮合并为臂组件提供平衡力。 弹簧支架的支承表面位于第一枢转轴线的相对侧上，使得当第一臂围绕其第一枢转轴线从垂直方向沿任一方向枢转时，弹簧支承件支承表面中的一个或另一个与轴承 支架的表面导致滑行器对第一臂的内表面中的一个或另一个施加平衡力。 弹簧在臂可以移动的各个角度向臂组件提供精确的平衡力。

公开(公告)号：USD285120S

公开(公告)日：1986-08-12

申请号：US574290

申请日：1984-01-26

申请人： Jessen C. Krogsrud

设计人： Jessen C. Krogsrud

公开(公告)号：US4160536A

公开(公告)日：1979-07-10

申请号：US888576

申请日：1978-03-20

申请人： Jens C. Krogsrud

发明人： Jens C. Krogsrud

IPC分类号： F16M11/04 ,  F21V21/26

CPC分类号： F16M11/10 ,  F16M11/04 ,  F16M11/2014 ,  F16M11/2092 ,  F16M11/24 ,  F16M13/02 ,  F21V21/26 ,  F16M2200/044 ,  F16M2200/063 ,  F16M2200/065

摘要： An equapoised arm assembly is counterbalanced by springs enclosed within tubes that are components of the arm assembly. The arm assembly has a lower pair of parallel arms which are pivoted at their lower ends to a swivel bracket that turns about a vertical axis in a fixed bracket. Each of these arms is pivoted at its upper end to a floating bracket that is pivoted to a similar upper pair of parallel arms. An article support bracket is mounted upon the other end of the upper pair of arms and may include a universal joint assembly. The arms are tubular and each pair forms a parallelogram by virtue of the pivotal connections with the respective brackets. A coil spring is enclosed within one arm of each pair of arms to exert a counterbalancing effect upon its pair of arms. A nylon shoe is connected to at least one end of each spring and is slidable within the tube. The shoe is connected through a rod to an adjacent bracket of the assembly to transmit the counterbalacing force from the spring to the adjacent bracket. By connecting a shoe and rod to both ends of the spring, it is stretched from both these ends whereby its counterbalancing force is doubled. This force is a function of the tangent of the angle between the direction of the spring force (i.e. the longitudinal axis of the tube it is in) and the connection(s) between the slide and bracket, whereby the actual spring force may be smaller than that used to produce the same counterbalancing force in prior equapoised arm assemblies.

摘要翻译： 平衡臂组件由作为臂组件的部件的管内的弹簧平衡。 臂组件具有下一对平行臂，它们在其下端枢转到绕固定支架的垂直轴线转动的转动支架。 这些臂中的每一个在其上端枢转到浮动支架，该浮动支架枢转到类似的上一对平行臂。 物品支撑托架安装在上一对臂的另一端上并且可以包括万向节组件。 臂是管状的，并且每对由于与相应的支架的枢转连接而形成平行四边形。 螺旋弹簧被封闭在每对臂的一个臂内，以在其一对臂上施加平衡效应。 尼龙鞋连接到每个弹簧的至少一端，并且可在管内滑动。 鞋通过杆连接到组件的相邻支架，以将对抗力从弹簧传递到相邻支架。 通过将鞋和杆连接到弹簧的两端，它们从这两个端部被拉伸，由此其平衡力加倍。 该力是弹簧力的方向（即，管的纵向轴线）与滑块和支架之间的连接之间的角度的切线的函数，由此实际的弹簧力可以更小 而不是用于在以前的平衡臂组件中产生相同的平衡力。

公开(公告)号：US4744019A

公开(公告)日：1988-05-10

申请号：US906302

申请日：1986-09-12

申请人： Jessan C. Krogsrud

发明人： Jessan C. Krogsrud

IPC分类号： F16M11/04 ,  F21V21/108 ,  F21V21/18 ,  F21V21/26 ,  F21V21/30

CPC分类号： F21S6/003 ,  F16M11/10 ,  F16M11/2064 ,  F16M13/022 ,  F21V21/26 ,  F21V21/30 ,  F16M2200/044 ,  F16M2200/068 ,  F21V21/08

摘要： A counterbalanced arm assembly is disclosed which includes a mounting bracket and a first arm pivotally connected to the mounting bracket along a first pivot axis. The first arm includes an inner arm located within it which is pivotally connected to the mounting bracket along a second pivot axis. A spring carrier is located near the first pivot axis and a tension spring is connected between the carrier and the bracket. The spring carrier includes a lower end defining a pair of spaced bearing surfaces located respectively to engage a pair of bearing surfaces on the bracket, with the spring biasing the bearing surfaces into engagement and providing the counterbalancing forces for the arm assembly. The bearing surfaces of the spring carrier are located on opposite sides of the first pivot axis so that as the first arm is pivoted about its first pivot axis in either direction from the vertical, one or the other of the spring carrier bearing surfaces engages the bearing surfaces of the bracket causing the glider to exert a counterbalancing force against one or the other of the inner surfaces of the first arm. The spring provides the exact counterbalancing force to the arm assembly at all angles to which the arm can be moved.

摘要翻译： 公开了一种平衡臂组件，其包括安装支架和沿着第一枢轴枢转地连接到安装支架的第一臂。 第一臂包括位于其内的内臂，其沿着第二枢转轴线枢转地连接到安装支架。 弹簧托架位于第一枢转轴线附近，并且拉伸弹簧连接在托架和托架之间。 弹簧支架包括限定一对间隔开的支承表面的下端，分别位于支架上的一对支承表面上，弹簧将支承面偏置成啮合并为臂组件提供平衡力。 弹簧支架的支承表面位于第一枢转轴线的相对侧上，使得当第一臂围绕其第一枢转轴线从垂直方向沿任一方向枢转时，弹簧支承件支承表面中的一个或另一个与轴承 支架的表面导致滑行器对第一臂的内表面中的一个或另一个施加平衡力。 弹簧在臂可以移动的各个角度向臂组件提供精确的平衡力。