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51. 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

52. 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。

53. 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。

54. 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。

55. 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。

56. 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。

57. 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.

58. 发明申请

US20210198944A1 Extension Ladder with Groove Box Rails and Method 有权
公开(公告)号：US20210198944A1
公开(公告)日：2021-07-01
申请号：US16795132
申请日：2020-02-19
申请人： David S. Pozgay , Thomas W. Parker , Slavisa Dacic , Daniel R. Stumpf
发明人： David S. Pozgay , Thomas W. Parker , Slavisa Dacic , Daniel R. Stumpf
IPC分类号： E06C1/12
摘要： An extension ladder having a base section having a first box shaped base rail having a base side and a groove extending along the side. The extension ladder has a fly section having a first box shaped fly rail, and a follower bracket attached to the first box shaped fly rail and extending outward toward the first box shaped base rail. The groove is sized to engage the follower bracket which constrains the fly section to have limited motion relative to the base section and a left to right and front to rear directions while permitting the fly section to slide freely relative to the base section when the fly section is extended. A method for using an extension ladder. A method for producing an extension ladder.

59. 发明申请

US20200340301A1 Extension Ladder with Local Reinforcement and Method 审中-公开
公开(公告)号：US20200340301A1
公开(公告)日：2020-10-29
申请号：US16397679
申请日：2019-04-29
申请人： Thomas W. Parker
发明人： Thomas W. Parker
IPC分类号： E06C7/10 , E06C1/12 , E06C7/50
摘要： An extension ladder having a base section and a fly section. The fly section has a right local reinforcement disposed inside a right fly rail of the fly section at locations of highest bending moment of the right fly rail when a force is applied to the right fly rail. The right local reinforcement is shorter than a length of the right fly rail. Loads applied to the right fly rail are transmitted to the right local reinforcement so the right fly rail may be thinner than if there was no right local reinforcement present. A method for producing a ladder rail with a local reinforcement between a top rail flange and a bottom rail flange. A method for using an extension ladder.

60. 发明授权

US10072689B2 Stanchion systems, stanchion attachment systems, and horizontal lifeline systems including stanchion systems 有权
公开(公告)号：US10072689B2
公开(公告)日：2018-09-11
申请号：US12366649
申请日：2009-02-06
申请人： Thomas W. Parker , David A. Winslow , Eric M. Manson
发明人： Thomas W. Parker , David A. Winslow , Eric M. Manson
IPC分类号： F16B9/02 , E04G21/32 , E04G5/04
CPC分类号： F16B9/02 , E04G5/045 , E04G21/3219 , E04G21/3233 , F16B9/023 , Y10T403/18 , Y10T403/39 , Y10T403/69
摘要： A stanchion system, includes a stanchion post and an attachment system for attachment to a flange which includes a first edge and a second edge. The attachment system includes a crossbar including an extending section and an abutment member on a first end thereof to abut the first edge of the flange; a base including a passage through which the extending section of the crossbar is movable and a seating for the stanchion post; and a connector including a first section and a second section. The second section of the connector is attachable to the extending section of the crossbar at one of a plurality of incremental positions. The first section of the connector is movable relative to the second section to adjust the position of the first section relative to the abutment member of the crossbar. In several embodiments, the first section is movable relative to the second section to abut the base on a side of the base opposite the side upon which the flange is positioned to adjust the position of the first section relative to the abutment member.

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