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51. 发明申请

US20130292206A1 Step Stool and Method 有权
标题翻译：步凳和方法
公开(公告)号：US20130292206A1
公开(公告)日：2013-11-07
申请号：US13941137
申请日：2013-07-12
申请人： Thomas W. Parker
发明人： Thomas W. Parker
IPC分类号： E06C1/383
CPC分类号： E06C1/383 , E06C1/387 , E06C1/39 , E06C1/393 , Y10T29/49716
摘要： A folding step stool includes a front rail assembly. The step stool includes a rear rail assembly, pivotally connected to the front rail assembly, having a crossbar. The step stool includes a step pivotally attached to the front rail assembly having notches which fit over the crossbar when the stool is in an open position. The step stool includes a linkage assembly pivotally and fixedly attached to the step and pivotally and fixedly attached to the crossbar. The linkage assembly compresses to allow the notches to fit over the crossbar and the linkage assembly exerting a force to maintain the crossbar in the notches when the stool is in the open position. A method for securing a step stool includes the steps of moving the notches of a step against a crossbar of a rear rail assembly pivotally connected to a front rail assembly of the step stool. There is the step of compressing a linkage assembly pivotally and fixedly attached to the step and pivotally and fixedly attached to the crossbar to allow the notches to fit over the crossbar. There is the step of exerting a force with the linkage assembly to maintain the crossbar in the notches when the stool is in the open position.
摘要翻译：折叠式凳子包括前导轨组件。台阶凳包括枢转地连接到前导轨组件的后导轨组件，具有横杆。台阶凳包括当凳子处于打开位置时枢转地附接到前导轨组件的台阶，其具有配合在横杆上的凹口。台阶凳包括枢转地并且固定地附接到台阶并且可枢转地并且固定地附接到横杆的连杆组件。连杆组件压缩以允许凹口配合在横梁上，并且当凳子处于打开位置时，连杆组件施加力以将横杆保持在凹口中。一种用于固定台阶凳的方法包括以下步骤：使步骤的凹口移动到枢转地连接到台阶凳的前导轨组件的后轨组件的横杆上。压缩连杆组件的步骤是可枢转地并且固定地附接到台阶上，并且可枢转地并且固定地附接到横杆上，以允许凹口配合在横杆上。当凳子处于打开位置时，存在使用连杆组件施加力以将横杆保持在凹口中的步骤。

52. 发明授权

US08181744B2 Self-retracting lifeline systems and braking systems therefor 有权
标题翻译：自动回收式救生索系统及其制动系统
公开(公告)号：US08181744B2
公开(公告)日：2012-05-22
申请号：US12392061
申请日：2009-02-24
申请人： Thomas W. Parker , Ross Balquist
发明人： Thomas W. Parker , Ross Balquist
IPC分类号： A62B1/08
CPC分类号： A62B1/10
摘要： A lifeline system includes a lifeline and a drum assembly around which the lifeline is coiled. The drum assembly is rotatable about a first axis in a first direction during extension of the lifeline and in a second direction, opposite of the first direction, during retraction of the lifeline. The lifeline system further includes a tensioning mechanism in operative connection with the drum assembly to impart a biasing force on the drum assembly to bias the drum assembly to rotate about the first axis in the second direction. The lifeline system further comprises a braking mechanism in operative connection with the drum assembly. The braking mechanism includes a catch that is rotatable relative to the drum assembly about a second axis that is not concentric with the first axis. The second axis is operatively connected to the first axis so that the second axis rotates about the first axis in the same direction as the drum assembly when the drum assembly is rotating about the first axis. A center of mass of the catch is located in the vicinity of the second axis. The catch rotates about the second axis in the second direction when the drum assembly is rotated in the first direction at at least a determined angular acceleration to cause an abutment section of the catch to abut an abutment member of the lifeline system (for example, by moving radially outward a sufficient amount) and stop the rotation of the drum assembly.
摘要翻译：生命线系统包括救生索和围绕生命线盘绕的鼓组件。在救生索的缩回期间，滚筒组件可在第一方向上沿着第一方向旋转，并且在第二方向上与第一方向相反。救生索系统还包括与滚筒组件可操作地连接的张紧机构，以在滚筒组件上施加偏置力，以偏置滚筒组件以沿着第二方向围绕第一轴线旋转。救生索系统还包括与鼓组件有效连接的制动机构。制动机构包括可相对于滚筒组件围绕不与第一轴线同心的第二轴线旋转的卡扣。第二轴线可操作地连接到第一轴线，使得当滚筒组件围绕第一轴线旋转时，第二轴线以与鼓组件相同的方向围绕第一轴线旋转。卡盘的质心位于第二轴附近。当滚筒组件以至少一个确定的角加速度在第一方向上旋转时，卡爪在第二方向上围绕第二轴线旋转，以使卡扣的邻接部分邻接救生索系统的邻接构件（例如，由径向向外移动足够的量）并停止鼓组件的旋转。

53. 发明授权

US08151936B2 Access ladder and method 有权
标题翻译：访问梯子和方法
公开(公告)号：US08151936B2
公开(公告)日：2012-04-10
申请号：US12807972
申请日：2010-09-17
申请人： Thomas W. Parker
发明人： Thomas W. Parker
IPC分类号： E06C5/00
CPC分类号： E06C1/12 , E04F11/068 , E06C1/387
摘要： An access ladder for an access hole in a building includes a plurality of sections which telescope relative to each other between an extended position, where the sections define a plane and a user can climb the sections, and a retracted position where the sections are folded on each other. Several of the sections have a least one step which preferably moves between an unfolded position where the user can stand on the step when the sections are in the extended position, and a folded position when the sections are in the retracted position. Each section slides relative to another section of the plurality of sections which it is in contact in order for the sections to telescope. A method for using an access ladder attached to an end of an access hole of a building.
摘要翻译：用于建筑物中的进入孔的进入梯子包括多个部分，该多个部分在延伸位置之间相对于彼此伸缩的部分，其中所述部分限定平面并且使用者可以爬上所述部分，以及缩回位置，其中部分被折叠彼此。几个部分具有至少一个步骤，优选地在展开位置之间移动，其中使用者可以在所述部分处于伸出位置时在台阶上站立，以及当所述部分处于缩回位置时的折叠位置。每个部分相对于其接触的多个部分中的另一部分滑动，以使部分望远。一种用于使用连接到建筑物的进入孔的端部的进入梯子的方法。

54. 发明授权

US08104578B2 Stepladder folding twin-step 有权
标题翻译：梯子折叠双步
公开(公告)号：US08104578B2
公开(公告)日：2012-01-31
申请号：US12231565
申请日：2008-09-04
申请人： Jason R. Moldthan , Thomas W. Parker , Jack Warren Gee, II , David Andrew Winslow , Kyle G. Astor , Timothy James Brookbank
发明人： Jason R. Moldthan , Thomas W. Parker , Jack Warren Gee, II , David Andrew Winslow , Kyle G. Astor , Timothy James Brookbank
IPC分类号： E06C5/32
CPC分类号： E06C1/393 , E06C1/387 , E06C7/14 , Y10T16/5406 , Y10T16/546 , Y10T403/32262 , Y10T403/32336
摘要： A ladder includes a first section having at least one step. The ladder includes a second section having a least one step. The ladder includes a platform attached to the first and second sections. The ladder includes a hinge mechanism connected to the first section and second section, about which the first section and second section move between an open state, where the first and second sections are in an angular relationship for use, and a folded state where the first and second sections and the platform are essentially in parallel, as shown in FIGS. 4 and 5. The ladder includes a foldable tray mechanism attached to the hinge mechanism about which the foldable tray mechanism moves between the open state independently of the first and second sections, where the foldable tray is in an angular relationship with the first and second sections for use, and a folded state where the foldable tray essentially forms a plane with the first section. A hinge for a stepladder. A step to a ladder. Methods for using a stepladder.
摘要翻译：梯子包括具有至少一个台阶的第一部分。梯子包括具有至少一个步骤的第二部分。梯子包括附接到第一和第二部分的平台。梯子包括连接到第一部分和第二部分的铰链机构，第一部分和第二部分围绕第一部分和第二部分在第一和第二部分处于使用角度关系的打开状态之间移动，以及折叠状态，其中第一部分并且第二部分和平台基本上是平行的，如图1和2所示。梯子包括附接到铰链机构的可折叠托盘机构，可折叠托盘机构围绕可折叠托盘机构在打开状态之间独立于第一和第二部分移动，其中可折叠托盘与第一和第二部分成角度关系以及可折叠托盘基本上与第一部分形成平面的折叠状态。梯子铰链。踏上梯子的一步。使用梯子的方法

55. 发明授权

US08028805B2 Access ladder with plungers 失效
标题翻译：进入梯子与柱塞
公开(公告)号：US08028805B2
公开(公告)日：2011-10-04
申请号：US12802620
申请日：2010-06-10
申请人： Thomas W. Parker
发明人： Thomas W. Parker
IPC分类号： E06C1/00
CPC分类号： E06C1/12 , E04F11/068
摘要： An access ladder for accessing a ceiling from a floor. The ladder comprises a plurality of sections which telescope open and closed, and from a bottom section each section telescopes open to positively lock to the section below it with plungers that lock and unlock each section in sequence as the sections open and close, respectively. A method for using an access ladder for accessing a ceiling from a floor.
摘要翻译：一个从楼梯进入天花板的通道梯。梯子包括望远镜打开和关闭的多个部分，并且从每个部分的底部部分望远镜打开，以分别在部分打开和关闭时按顺序锁定和解锁每个部分的柱塞以正向锁定到其下方的部分。一种使用接入梯从地板接入天花板的方法。

56. 发明授权

US07882930B2 Pump jack crank and method 有权
标题翻译：泵千斤顶曲柄和方法
公开(公告)号：US07882930B2
公开(公告)日：2011-02-08
申请号：US11122360
申请日：2005-05-05
申请人： Thomas W. Parker
发明人： Thomas W. Parker
IPC分类号： E04G3/00
CPC分类号： G05G1/085 , B66F13/00 , G05G1/082 , Y10T70/5624 , Y10T74/20474 , Y10T74/20744 , Y10T403/32861 , Y10T403/32918 , Y10T403/7045
摘要： An apparatus for cranking a shackle of a pump jack. The apparatus includes a shaft which fits through the shackle. The apparatus includes a handle for cranking the shaft. The handle having a locked state in which the handle is unable to rotate the shaft, and an unlocked state in which the handle is able to rotate the shaft. The apparatus includes a locking mechanism engaging the handle at a pivot point and the shaft, the locking mechanism placing the handle in the lock state or the unlocked state by moving the handle about the pivot point to a first position or a second position, respectively. A method for cranking a shackle of a pump jack.
摘要翻译：用于起动泵千斤顶卸扣的装置。该装置包括通过该钩环配合的轴。该装置包括用于起动轴的把手。手柄具有手柄不能旋转轴的锁定状态，以及手柄能够旋转轴的解锁状态。该装置包括锁定机构，该锁定机构在枢转点与轴接合手柄，该锁定机构分别通过将把手绕枢轴点移动到第一位置或第二位置而将手柄放置在锁定状态或解锁状态。用于起动泵千斤顶卸扣的方法。

57. 发明申请

US20080149421A1 Flip ladder with tray and method 有权
标题翻译：翻转梯与托盘和方法
公开(公告)号：US20080149421A1
公开(公告)日：2008-06-26
申请号：US11644346
申请日：2006-12-22
申请人： Thomas W. Parker
发明人： Thomas W. Parker
IPC分类号： E06C1/383 , E06C1/04 , E06C1/14
CPC分类号： E06C1/32 , E06C7/14 , Y10T29/49826
摘要： A climbing apparatus that rests on a surface includes a flip ladder that can move between a straight configuration and a stepladder configuration. The apparatus includes a tray having a plane attached to the flip ladder that moves with the flip ladder between the straight configuration where the tray plane is essentially parallel with the ladder in a stowed position and a stepladder configuration where the tray plane is essentially parallel with the surface in an open position. A method for climbing includes the steps of moving a flip ladder between a straight configuration and a stepladder configuration. There is the step of moving a tray having a plane attached to the flip ladder from a stowed position where the tray plane is essentially parallel with the ladder to an opened position where the tray plane is essentially parallel with the surface. There is the step of moving the flip ladder from the stepladder configuration to the straight configuration which causes the tray to move automatically into the stowed position.
摘要翻译：靠在表面上的攀爬装置包括能够在直线配置和梯形结构之间移动的翻转梯。该装置包括托盘，该托盘具有附接到翻盖梯的平面，该平面与翻转梯一起在直立构型之间移动，托架平面基本上与梯子处于收起位置平行;梯形结构，其中托盘平面基本上与表面处于打开位置。一种攀爬方法包括在直式构型和梯形结构之间移动翻转梯的步骤。有一个步骤是将托盘平面与梯子基本上平行的收纳位置移动到平台上，托盘平面基本上与表面平行。将梯子从梯形结构移动到直线构型的步骤是使托盘自动移动到收起位置。

58. 发明申请

US20080023269A1 Tubular access ladder and method 有权
标题翻译：管状梯子和方法
公开(公告)号：US20080023269A1
公开(公告)日：2008-01-31
申请号：US11494217
申请日：2006-07-27
申请人： Thomas W. Parker
发明人： Thomas W. Parker
IPC分类号： E06C1/00 , E06C9/00
CPC分类号： E06C1/125 , E04F11/068 , E06C9/08
摘要： An access ladder includes a plurality of sections connected together to telescope between an extended position and a retracted position that has an increasing reactive force to counterbalance the weight of the sections as they extend. A method for accessing a room with a ladder connected to a ceiling including the steps of moving the ladder to a fully extended position subject to an increasingly active force to counterbalance the weight of the ladder as it extends. There is the step of retracting the ladder into a retracted position in the ceiling.
摘要翻译：进入梯子包括连接在一起以在延伸位置和缩回位置之间伸缩的多个部分，该延伸位置和缩回位置具有增加的反作用力，以在它们延伸时平衡部分的重量。一种用于连接天花板的梯子进入房间的方法，其特征在于包括步骤：梯子运动到达完全延伸的位置，受到越来越大的作用力，以抵抗梯子在其延伸时的重量。有一个步骤是将梯子缩回到天花板的缩回位置。

59. 发明授权

US07311177B2 Step stool, hinge and method 失效
标题翻译：步凳，铰链和方法
公开(公告)号：US07311177B2
公开(公告)日：2007-12-25
申请号：US11264105
申请日：2005-11-01
申请人： Thomas W. Parker , John J. Fiumefreddo
发明人： Thomas W. Parker , John J. Fiumefreddo
IPC分类号： E06C1/00
CPC分类号： A47C12/00 , E05D11/1007 , E05Y2900/60 , E06C1/005 , E06C1/393 , Y10T16/532 , Y10T16/54021 , Y10T16/540247 , Y10T16/54048 , Y10T16/5407 , Y10T16/54095
摘要： A folding step stool includes a hinge mechanism. The step stool includes a first section connected to the hinge mechanism. The first section having a bottom step. The step stool includes a second section connected to the hinge mechanism. The step stool includes a third section connected to the hinge mechanism, wherein when the folding step is in and unfolded state, the first and second sections form a base on a floor and are in angular relationship with each other, and the third section extends upward from the hinge mechanism relative to the first section, and when the first, second and third sections are in a folded state, they are essentially in parallel with each other, are no more than ¾ as tall and ½ as long as when the step stool is in the unfolded state. A method for using a folding step stool. A hinge for a folding step stool having a folded and unfolded state and having a top rail, front rail and rear rail. A method for using a folding step stool.
摘要翻译：折叠台凳包括铰链机构。台阶凳包括连接到铰链机构的第一部分。第一部分有一个底部的步骤。台阶凳包括连接到铰链机构的第二部分。踏板包括连接到铰链机构的第三部分，其中当折叠步骤处于和展开状态时，第一和第二部分在地板上形成基座并且彼此成角度关系，并且第三部分向上延伸从铰链机构相对于第一部分，并且当第一，第二和第三部分处于折叠状态时，它们基本上彼此平行，不超过¾高和½，只要当台阶凳正处于展开状态。一种使用折叠台凳的方法。用于折叠台阶凳的铰链，其具有折叠和展开状态，并且具有顶部导轨，前导轨和后导轨。一种使用折叠台凳的方法。

60. 发明授权

US5911242A Reversing valve and method 失效
公开(公告)号：US5911242A
公开(公告)日：1999-06-15
申请号：US307348
申请日：1994-09-16
申请人： Thomas W. Parker
发明人： Thomas W. Parker
IPC分类号： F16K31/42 , F16K11/074 , F16K17/22 , F16K31/06 , F16K39/04 , F25B41/04 , F16K11/06
CPC分类号： F16K11/0743 , F16K39/045 , F25B41/046 , Y10T137/0318 , Y10T137/86839
摘要： A reversing valve for a vapor compression refrigeration system comprising a housing defining a chamber with a high pressure port, a low pressure port and first and second system ports opening into said chamber through a chamber wall; a valve member disposed in the housing for shifting movement generally parallel to the wall between a first position wherein the valve member communicates the low pressure port with the first system port while communicating the high pressure port with the second system port and a second position wherein the valve member communicates the low pressure port with the second system port while communicating the high pressure port with the first system port, the valve member blocking communication between the high and low pressure ports when in the first and second positions; the valve member subjected to a net differential pressure force acting to firmly seat the valve member in the first or second position for preventing leakage between the high pressure port and the low pressure port; and, an actuator for reversing the direction of the net differential pressure force acting on the valve member to unseat the valve member and move it away from its first or second position for facilitating the shifting movement to the other position.

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