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公开(公告)号：US11506207B1
公开(公告)日：2022-11-22
申请号：US17827267
申请日：2022-05-27
申请人： Gregory S. Sundheim
IPC分类号： F04C29/02 , F04C25/02 , F04C28/24 , F04C28/06 , F04C18/344
摘要： A portable vacuum pump with a lubricating oil system having a quick oil change system. The oil change system includes at least two containers of oil and a switch mechanism operable to initially place the first container in fluid communication with the vacuum pump to serve as the primary oil reservoir while isolating the second container from such fluid communication. Then in a snap action, the switch mechanism can be flipped to place the second container with clean oil in fluid communication with the vacuum pump to serve as the primary oil reservoir and isolate the first container from fluid communication when its oil becomes dirty, all while the vacuum pump is still operating to evacuate an AC/R system. The first container can then be removed, refilled with clean oil, and returned in place and the switch mechanism flipped back to it when the second container of oil becomes dirty.
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公开(公告)号：USD665285S1
公开(公告)日：2012-08-14
申请号：US29385163
申请日：2011-02-09
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公开(公告)号：USD598796S1
公开(公告)日：2009-08-25
申请号：US29326591
申请日：2008-10-21
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公开(公告)号：USD351896S
公开(公告)日：1994-10-25
申请号：US9258
申请日：1993-06-09
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公开(公告)号：USD1023076S1
公开(公告)日：2024-04-16
申请号：US29746594
申请日：2020-08-14
申请人： Gregory S. Sundheim
摘要： FIG. 1 is a front elevational view of a refrigerant hose accessory showing our new design with a refrigerant hose attached thereto as shown in broken lines.
FIG. 2 is a perspective view thereof.
FIG. 3 is a perspective view thereof.
FIG. 4 is a front elevational view thereof, the rear elevational view being a mirror image thereof.
FIG. 5 is a left side elevational view thereof.
FIG. 6 is a right side elevational view thereof.
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines of FIG. 1 are for illustrative purposes only and form no part of the claimed design.-
公开(公告)号：US20150139839A1
公开(公告)日：2015-05-21
申请号：US14605082
申请日：2015-01-26
申请人： Gregory S. Sundheim
发明人： Gregory S. Sundheim
CPC分类号： F04B9/04 , F04B27/005 , F04B35/06 , F04B41/02 , F04B53/00 , F25B45/00 , F25B2345/002 , F25B2345/0051 , F25B2345/006 , Y10T74/18256
摘要： A portable, refrigerant recovery unit for transferring refrigerant from a refrigeration system to a storage tank. The recovery unit includes two, opposed piston heads rigidly attached to respective piston rods that extend along a common fixed axis. The piston rods are rigidly attached to the yoke member of a scotch yoke arrangement. In operation, incoming refrigerant from the system is simultaneously and continuously directed to the opposing piston heads wherein the forces of the pressurized refrigerant on them counterbalance or neutralize one another. The recovery unit also has a cooling fan driven by the motor for driving the scotch yoke in which the fan is driven through a step up gearing arrangement. In operation, the drive shaft of the motor is rotated at a first rate and the driven shaft of the fan is driven at a greater rate (e.g., twice the first rate) by the step up gearing arrangement.
摘要翻译： 一种用于将制冷剂从制冷系统传送到储罐的便携式制冷剂回收单元。 回收单元包括两个相对的活塞头，其刚性地连接到沿公共固定轴线延伸的各个活塞杆。 活塞杆刚性地连接到苏格兰克轭装置的轭构件上。 在操作中，来自系统的进入制冷剂同时且连续地引导到相对的活塞头，其中加压的制冷剂在其上的力抵消或相互抵消。 回收单元还具有由电动机驱动的冷却风扇，用于驱动通过升档装置驱动风扇的苏格兰转盘。 在操作中，马达的驱动轴以第一速率旋转，并且风扇的从动轴通过升压装置以更大的速率（例如，第一速率的两倍）被驱动。
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公开(公告)号：USD536711S1
公开(公告)日：2007-02-13
申请号：US29219128
申请日：2004-12-13
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公开(公告)号：US20150226471A1
公开(公告)日：2015-08-13
申请号：US14616896
申请日：2015-02-09
申请人： Gregory S. Sundheim
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2345/002 , F25B2345/0051 , Y10T137/86035
摘要： A portable, refrigerant recovery unit to transfer refrigerant from a refrigerant system to a storage tank. The recovery unit includes a condenser bypass mode controlled by a valving arrangement that can be employed when the cooling and phase change functions of the condenser are not needed such as commonly exist during the initial stages of the overall recovery process when the refrigerant from the system may already be in liquid phase. In such cases, the bypass mode avoids having the flow run through the tubing and other plumbing of the condenser which otherwise would add significant length (e.g., 2-3 feet or more) and resistance to the flow through the recovery unit for a faster overall recovery process. The valving arrangement of the recovery unit has a single control knob and can be positioned in a plurality of modes including off, condenser bypass, recovery, and condenser purge.
摘要翻译： 便携式制冷剂回收单元，用于将制冷剂从制冷剂系统输送到储罐。 回收单元包括由不需要冷凝器的冷却和相变功能的阀装置控制的冷凝器旁路模式，例如当整个回收过程的初始阶段通常存在来自系统的制冷剂时 已经处于液相。 在这种情况下，旁路模式避免流过管道和冷凝器的其他管道，否则会增加显着长度（例如2-3英尺或更大），并阻止流过回收单元的流量更快地整体 恢复过程。 回收单元的阀装置具有单个控制旋钮，并且可以以多种模式定位，包括关闭，冷凝器旁路，回收和冷凝器吹扫。
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10.发明授权公开(公告)号：US09080569B2
公开(公告)日：2015-07-14
申请号：US12691457
申请日：2010-01-21
申请人： Gregory S. Sundheim
发明人： Gregory S. Sundheim
IPC分类号： F01C21/00 , F03C2/00 , F01C21/04 , F01C21/06 , F03C4/00 , F04C15/00 , F04C29/00 , F04C2/00 , F04C27/02 , F04C29/02 , F04C29/04 , F16D39/00 , F04C18/344 , F04C13/00 , F04C23/00 , F04C25/02 , F04C28/06 , F04C2/12 , F04C23/02
CPC分类号： F04C18/3441 , F04C2/12 , F04C13/007 , F04C15/0053 , F04C23/006 , F04C23/02 , F04C25/02 , F04C28/06
摘要： A portable, rotary vane vacuum pump with an automatic vacuum breaking arrangement that vents the pump to atmosphere whenever the drive motor ceases to rotate the pump. The arrangement prevents lubricating oil in any substantial amount from being undesirably drawn into the evacuated pump when the drive motor is shut off either intentionally or unintentionally. If the system being evacuated is also still connected to the pump, the arrangement will additionally vent it and greatly limit any amount of oil that may be undesirably sucked back into it. The pump further has a primary oil container that essentially holds all of the oil for the system. The primary container is preferably made of clear, rigid plastic and is also removable from the main body of the pump so it can be quickly and easily replaced with another container of fresh oil even while the pump is still operating.
摘要翻译： 一种便携式旋片式真空泵，具有自动真空断开装置，每当驱动电机停止旋转泵时，将泵排入大气。 当驱动马达有意地或无意地被切断时，该布置防止任何实际量的润滑油不期望地被吸入抽真空泵。 如果抽真空的系统仍然连接到泵，则该装置还将排放它并且极大地限制可能不期望地被吸回到其中的任何量的油。 泵还具有基本上保持系统的所有油的主油容器。 主容器优选地由透明的刚性塑料制成，并且也可以从泵的主体移除，因此即使在泵仍在运行时也可以快速而容易地用另一容器替换新鲜的油。
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