公开(公告)号：US5749106A

公开(公告)日：1998-05-12

申请号：US645819

申请日：1996-05-14

申请人： Casey Loyd ,  Buzz Loyd

发明人： Casey Loyd ,  Buzz Loyd

IPC分类号： E04H4/14 ,  A47K3/00

CPC分类号： E04H4/144

摘要： A portable spa is provided wherein an external axis stairway is provided within an indentation in one of the sidewalls of the tub.

摘要翻译： 提供了一种便携式温泉，其中在浴缸的一个侧壁中的凹陷内设置有外部轴梯道。

公开(公告)号：US20050147491A1

公开(公告)日：2005-07-07

申请号：US10752856

申请日：2004-01-07

申请人： Casey Loyd ,  Pedro Vargas ,  Buzz Loyd

发明人： Casey Loyd ,  Pedro Vargas ,  Buzz Loyd

IPC分类号： F04D29/12 ,  F16J15/34 ,  F01D11/00

CPC分类号： F16J15/3404 ,  F04D29/128

摘要： A centrifugal pump has a pump case and a rotatable impeller disposed within the pump case. A central aperture is defined within the rearward wall of the pump case to facilitate the connection of an impeller drive shaft to the impeller. A drive shaft seal is disposed within the central aperture to seal the impeller drive shaft to the pump case. At least one or more grooves are defined in the rearward wall of the pump case to carry liquids to and from the drive shaft seal. One or more radial ridges are disposed on the rearward side of the impeller to encourage liquids to flow within the grooves to and from the drive shaft seal to continuously wash away precipitates around the seal and to cool the seal.

公开(公告)号：US06966749B2

公开(公告)日：2005-11-22

申请号：US10752856

申请日：2004-01-07

申请人： Casey Loyd ,  Pedro Vargas ,  Buzz Loyd

发明人： Casey Loyd ,  Pedro Vargas ,  Buzz Loyd

IPC分类号： F04D29/12 ,  F16J15/34 ,  F04D29/10

CPC分类号： F16J15/3404 ,  F04D29/128

摘要： A centrifugal pump has a pump case and a rotatable impeller disposed within the pump case. A central aperture is defined within the rearward wall of the pump case to facilitate the connection of an impeller drive shaft to the impeller. A drive shaft seal is disposed within the central aperture to seal the impeller drive shaft to the pump case. At least one or more grooves are defined in the rearward wall of the pump case to carry liquids to and from the drive shaft seal. One or more radial ridges are disposed on the rearward side of the impeller to encourage liquids to flow within the grooves to and from the drive shaft seal to continuously wash away precipitates around the seal and to cool the seal.

摘要翻译： 离心泵具有泵壳和设置在泵壳内的可旋转叶轮。 中心孔限定在泵壳的后壁内，以便于叶轮驱动轴与叶轮的连接。 驱动轴密封件设置在中心孔内以将叶轮驱动轴密封到泵壳体。 至少一个或多个槽限定在泵壳的后壁中以将液体运送到驱动轴密封件和从驱动轴密封件传送液体。 一个或多个径向脊设置在叶轮的后侧，以促使液体在凹槽内流过驱动轴密封件并从驱动轴密封件流出，以连续地清除密封件周围的沉淀物并冷却密封件。

公开(公告)号：US20050265865A1

公开(公告)日：2005-12-01

申请号：US10858672

申请日：2004-06-01

申请人： Buzz Loyd

发明人： Buzz Loyd

IPC分类号： F04B17/00 ,  F04B35/04 ,  F04D7/04 ,  F04D7/06 ,  F04D29/42

CPC分类号： F04D7/045 ,  F04D29/426

摘要： A centrifugal pump has a pump case and a rotatable impeller disposed within the pump case. A central aperture is defined within the rearward wall of the pump case to facilitate the connection of an impeller drive shaft to the impeller. A drive shaft seal is disposed within the central aperture to seal the impeller drive shaft to the pump case. A tab is disposed within the pump case such that it protrudes away from the rearward wall of the pump case. The tab is sized, dimensioned and located so as to create sufficient turbulence proximate to the drive shaft seal to suppress the buildup of heat and chemical precipitates around the drive shaft seal.

摘要翻译： 离心泵具有泵壳和设置在泵壳内的可旋转叶轮。 中心孔限定在泵壳的后壁内，以便于叶轮驱动轴与叶轮的连接。 驱动轴密封件设置在中心孔内以将叶轮驱动轴密封到泵壳体。 一个突片设置在泵壳体内，使得其突出远离泵壳体的后壁。 突片的尺寸，尺寸和位置使得在驱动轴密封件附近产生足够的湍流，以抑制驱动轴密封周围的热量和化学沉淀物的积聚。