VIKING PUMP, INC. Patent applications |
Patent application number | Title | Published |
20150139843 | Internal Gear Pump - An internal gear pump with a field replaceable idler is disclosed that may be used for sanitary applications. Access to the idler mainly merely requires removal of the head. Access to the seal assembly disposed at the inboard end of the pump chamber is also fast and easy as removal of the head exposes a fastener that secures the rotor to the drive shaft. Removal of this fastener enables the rotor to be removed with a standard rotor-pulling tool thereby exposing the pump chamber seal assembly, which may be cleaned, serviced or replaced as needed. | 05-21-2015 |
20150139792 | Internal Gear Pump - An internal gear pump with a field replaceable idler is disclosed that may be used for sanitary applications. Access to the idler mainly requires removal of the head. Access to the seal assembly disposed at the inboard end of the pump chamber is also fast and easy as removal of the head exposes a fastener that secures the rotor to the drive shaft. Removal of this fastener enables the rotor to be removed with a standard rotor pulling tool thereby exposing the pump chamber seal assembly which may be cleaned, serviced or replaced as needed. | 05-21-2015 |
20140199162 | Positive Displacement Pump Including Detectable Composite Non-Metallic Components - A positive displacement pump is disclosed which includes a case that defines a pump cavity. A shaft and rotor, which are detachably connected together, are also included wherein the rotor is disposed within the pump cavity and the shaft passes through an opening in the proximal end of the case. The distal end of the shaft, in addition to being connected to the rotor, is also coupled to a fastener that couples a cover plate over the distal end of the shaft and over at least part of the base portion of the rotor. The opening in the proximal side of the case through which the shaft passes also accommodates a seal assembly. Access to the seal assembly is easily made by removing the head from the case and removing the rotor from the shaft. The seal assembly can be changed or serviced without removal of the shaft. | 07-17-2014 |
20130302137 | Pumps with Improved Drive Shaft/Casing Seals - A pump includes a drive shaft linked to a motor. The drive shaft passes through a seal assembly before passing into the pump chamber. The seal includes an outer seal housing that accommodates a lip seal. A portion of the drive shaft that passes through the seal assembly is coated with PTFE to prolong the working life of the seal assembly. | 11-14-2013 |
20120269668 | Polymeric External Gear Pump for Hot Cooking Oil - An overhung external spur gear positive displacement pump for hot oil or deep fryer applications is disclosed. The external gear pump includes a thermoplastic casing that includes a through bore for accommodating a drive shaft that leads to a pump chamber that accommodates a drive gear and a driven gear. The thermoplastic casing is connected to a stationary pin. The thermoplastic casing also includes a proximal end coupled to a motor and a distal end coupled to a thermoplastic head. The gears are enclosed in the pump chamber by the thermoplastic head. The stationary pin is accommodated within the driven gear and the drive shaft is coupled to the drive gear. The thermoplastic head is provided in the form of a plate with a plurality of holes for accommodating fasteners that couple the thermoplastic head to the distal end of the thermoplastic casing. | 10-25-2012 |
20120258006 | External Gear Pump for Hot Cooking Oil - An overhung external spur gear positive displacement pump for hot oil or deep fryer applications is disclosed. The external gear pump includes a casing that includes a through bore for accommodating a drive shaft that leads to a pump chamber that accommodates a drive gear and a driven gear. The casing further includes a recess connected to the pump chamber for accommodating a stationary pin. The casing also includes a proximal end coupled to a prime mover and a distal end coupled to a head. The gears are enclosed in the pump chamber by the head. The stationary pin is accommodated within the driven gear and the drive shaft is coupled to the drive gear. The head is provided in the form of a flat plate with a plurality of holes for accommodating fasteners that couple the head to the distal end of the casing. | 10-11-2012 |
20110008194 | Electric Heating and Temperature Control for Process Pumps - Electrically heated pumps are disclosed that include electric heating elements that are linked to a process controller. The disclosed pump designs can be applied to packed seal, lip seal, mechanical seal and magnetic drive pumps. For packed, lip and mechanical seal pumps, the external jacketing on the pump, including the head, casing, pressure relief valve and bracket, can be replaced with electric heating elements, such as flexible or custom form membranes, attached to the pump through the use of adhesive or mechanical fastening devices. For the magnetic drive pump, the external jacketing on the pump head, pressure relief valve and casing can be replaced with electric heating elements attached to the pump through the use of adhesive or mechanical fastening devices. For the bracket portion of the magnetic drive pump, the external jacketing can be removed and the heating element is attached to the canister that contains the liquid and that is located between the inner and outer magnetic drive assemblies. Through the use of appropriately placed thermocouples in the head, pressure relief valve, casing, bracket, canister, etc., and a single or multi-channel on/off, proportional or PID controller, the heating zones may be linked together, monitored and controlled to the application requirements. The disclosed pump designs may also be applied to auxiliary equipment such as strainers. | 01-13-2011 |
20100000923 | Pump System for Deep Fryers Using Trans-Fat-Free Cooking Oil - A pump for use in a filtration process for a deep fryer is disclosed. The pump includes a drive shaft linked to a motor or motor drive shaft. The drive shaft passes through a seal assembly before passing into the pump chamber. The seal includes an outer seal housing that accommodates a lip seal. The lip seal is fabricated from PTFE. A combination oil filtration and supply system for a deep fryer is also disclosed that includes a motor linked to the drive shaft. The drive shaft passes through a supply pump and a filter/return pump. The supply pump includes an inlet in communication with a fresh oil reservoir and an outlet in communication with the filter/return pump. The filter/return pump includes an inlet in each communication with an oil filtration system and an outlet in communication with the outlet of the supply pump and an inlet to an oil distribution network. The oil distribution network includes a plurality of outlets, each in communication with an inlet of a vat. Each vat each includes an outlet in communication with the oil filtration system. The supply pump further includes a bypass valve that closes the inlet to the supply pump when flow from the fresh oil reservoir is cut off by closing a fresh oil supply valve. The bypass valve permits continuous circulation of fresh oil in the supply pump chamber and around the seal to prolong the life of the seal. | 01-07-2010 |