Abstract: The pumping device includes a barrel, a cover, a pumping mechanism, a positioning ring, and plural posts. The barrel has plural first positioning portions extending upward near a bottom thereof. The cover is disposed on the barrel to selectively close the barrel. The pumping mechanism is disposed on the cover for pumping liquid in the receiving space outward or pumping liquid outside into the receiving space. The positioning ring is detachably combined by two semi-ring bodies and is sleeved onto the cover and the barrel to position the cover on the barrel. The positioning ring has plural second positioning portions. Each of the posts connects the positioning ring and the bottom of the barrel therebetween. Each post is detachably connected to one of the first positioning portions and one of the second positioning portions therebetween so that the two semi-ring bodies are unable to separate freely.

Abstract: A grease gun is provided comprising a body having a reservoir bore with a plurality of grooves; a grease reservoir is in communication with the reservoir bore and has a reservoir groove on an outside surface of the reservoir. A retention fastener is received by a groove and is in operational engagement with the reservoir groove to removably retain the reservoir. The retention fastener may be connected to a fastener bracket via an aperture. The bracket is connected to a push-button via a connection mechanism. The grease reservoir may be removed or mounted to the connection aperture by exerting force on the button which transfers the force to the bracket via the connection mechanism. The force causes movement of the bracket along the aperture which deforms the retention fastener to allow the grease reservoir to be mounted/removed.

Abstract: In one embodiment, there is provided a dock for a replaceable fluid container for an engine, the fluid container having: a fluid reservoir; and at least one fluid port having a coupling adapted to couple with a fluid circulation system associated with the engine; the dock having: a fastening mechanism configured to cooperate with the container such that, as the container is inserted into the dock, the fastening mechanism acts first to seat the fluid container in the dock but in an undocked condition and then, as the container is inserted further into the dock, acts to bring the fluid container into an engaged condition in which the fluid container is docked with a docking interface of the dock.

Abstract: A downhole vibration assembly includes a valve positioned above a rotor that is disposed at least partially within a stator. The rotor is operatively suspended within an inner bore of a housing and configured to rotate within the stator as a fluid flows through the vibration assembly. The valve includes a rotating valve segment and a stationary valve segment each including at least one fluid passage. The rotating valve segment rotates with a rotation of the rotor. In an open position, the fluid passages of the valve segments are aligned and a fluid flows through the valve. In a restricted position, the fluid passages of the valve segments are partially or completely unaligned, thereby temporarily restricting the fluid flow through the valve to create a pressure pulse. The unobstructed pressure pulse is transmitted through the drill string or coiled tubing above the valve.

Abstract: A rock crusher is provided that has a crusher cavity defined between a first part and a second part. A plurality of hydraulic cylinders are mounted between the first and second part, the hydraulic cylinders including a relief system. The relief system is included for reducing oil pressure within the hydraulic cylinders in the event uncrushables enter the crusher cavity, the relief system including a relief valve that is designed to open when hydraulic pressure in hydraulic cylinder reaches a predetermined level. This reduces the pressure in the hydraulic cylinder as oil pressure is dumped from the hydraulic cylinder via various oil passages.

Abstract: A grease gun cylinder walled cartridge adapted for direct attachment to any of a variety of grease gun head constructions and grease pumping systems, wherein the cartridge wall can be of any color or completely clear and see through, wherein the grease column within the cartridge is pressured toward and through an inlet port in the gun head, which port opens on the section stroke of a piston mounted in said cylinder into a loading portion of a cylinder of the grease pumping system, and wherein the grease column pressuring means is ambient air pressure.

Abstract: An applicator for applying cutting fluid is mounted in a CNC machine for pre-programmed, computer controlled use as a tool.

Abstract: A pump device for lubricant includes a pump main body; a cylinder part having an introduction port and a derivation port; a piston moving within the cylinder part; an actuator moving the piston forward to a 1st position to discharge a lubricant from the derivation port, backward from the 1st position to a 2nd position to suction the lubricant from the introduction port and further backward from the 2nd position to a 3rd position to stop the suction and discharge of the lubricant; and a driving control device controlling the actuator such that when the lubricant is supplied, the piston is moved from the 3rd position to the 1st position and moved between the 1st position and the 2nd position, and when the lubricant is not supplied, the piston is moved to the 3rd position and stopped.

Abstract: A portable pumping assembly for pumping and transporting fluids includes a container having bottom and side walls defining a chamber and a hand operated pump connected with an upper portion of the container side walls and arranged within the container generally parallel to the container bottom wall. When the pump is operated, fluid is drawn from outside the container and deposited into the container chamber for easy transport to a disposal location or facility.

Abstract: An oil injector for a vehicle is provided. The oil injector includes a transparent body having a flowing hole formed on a front end of the body. A flexible tube member is connected to the body and corresponds to the flowing hole. A storing space is formed in an internal portion of the body. One end of a piston member is entered into the storing space, and the piston member is movable relative to the body. Therefore, the piston member provides a pushing function in the storing space so that a fluid flows into or out form the body via the tube member, and the transparent body is provided for observing a storing amount of the fluid in the body.

Abstract: An oil flow control structure for grease gun has a hollow main body. An inflow end and an outflow end are respectively disposed at two sides of the main body. A high pressure passage and a low pressure passage, in which its inner diameter is larger than the high pressure passage, are disposed between the inflow end and the outflow end. A first pumping rod and a second pumping rod are respectively disposed in the two passages. The first pumping rod is pivoted to a pressing stem. The second pumping rod is pivoted to the pressing stem through a switching mechanism. The switching mechanism can regulate a pivot position of the second pumping rod relative to the pressing stem so that an initial position of the second pumping rod performing piston motion in the low pressure passage can be changed to seal or open the second inflow port.

Abstract: An apparatus for delivering a lubricating oil into a lower unit housing through a hole in the housing, the apparatus comprising an oil container having a neck portion and a main body. The main body defined by a main body wall for containing the lubricating oil. The main body wall being sufficiently thick to withstand pressure of up to 30 pounds per square inch. A pumping mechanism is attached to the oil container, the pumping mechanism comprising a pumping component comprising a plunger housing and an air moving plunger movable within the plunger housing, and an outer sleeve positioned within the container. The plunger housing is positioned within the outer sleeve, the plunger housing having an air valve disposed at a distal end thereof for expelling air into the outer sleeve, the air being moved by the plunger.

Abstract: A device that relieves lubricant pressure in a divider block lubrication system into a fluid reservoir, a container, or directly back into the compressor frame to which the tubing is connected. This eliminates housekeeping, environmental, safety, and compressor component failure concerns associated with current atmospheric rupture assemblies that relieve directly to the atmosphere. The environmental compressor protection assembly contains a spring set to a pre-determined pressure. Lubricant pressure in excess of this pre-determined set pressure results in spring compression and opening of a relief path. The assembly preferably remains in a full open position and must be must be manually reset to the closed position to prevent fluid flow in the system. The relief path can lead to a fluid reservoir, a container, or directly back into the compressor frame. Flow of lubricant through the relief path results in loss of flow to the lubrication system.

Abstract: Apparatus and method for on-board lubrication of a paint pumping piston including a reservoir for lubricant and a lubricant dispensing mechanism for delivering a predetermined repeatable amount of lubricant upon manual actuation of the lubricant dispensing mechanism. In one embodiment, a section of tubing acts as the reservoir, and in another embodiment, the reservoir is formed by a transparent or translucent chamber located adjacent an aperture in a pump housing to enable visual inspection of the level of lubricant in the reservoir. A lubricant delivery piston is actuated by an extension thereof projecting through an aperture in the housing, and a lubricant discharge nozzle is located adjacent the paint pumping piston proximate a bushing supporting the paint pumping piston. A breather valve prevents a vacuum in the reservoir as the lubricant is dispensed.

Abstract: A portable grease gun with the capability of being attached to either a grease containing barrel or a hose carrying grease from a grease supply container. An adapter may be mounted to the barrel mounting in place of a barrel to couple the grease gun to a hose connected to a grease supply container remote from the grease gun. Alternating plug may be mounted in the barrel mounting and a pumped grease supply coupled to the resupply port on the grease gun. The grease gun includes an output valve which restrains passage of grease at pressure below 30 psi.

Abstract: A bearing lubricating device includes a container and a piston member is located in the container and movably in contact with an inner periphery of the container. The piston member includes a concaved top surface and a concaved underside. A center post is located at a center of the piston member and a central passage is defined axially through the center post and through the concaved underside. A plurality of passages are defined through the concaved underside and located around the center post. A grease fitting has a cone-shaped portion on a lower end thereof and a handle is located on a top end of the grease fitting. A recess is defined in the lower end of the grease fitting and the center post is securely engaged with the recess.

Abstract: A portable grease gun with the capability of being attached to either a grease containing barrel or a hose carrying grease from a grease supply container. An adapter may be mounted to the barrel mounting in place of a barrel to couple the grease gun to a hose connected to a grease supply container remote from the grease gun. The grease gun includes an output valve which restrains passage of grease at pressure below 30 psi.

Abstract: A fifth wheel lubricating system for greasing the interface between the upper and lower fifth wheel plates while the trailer is couple to the tractor. The system supplies grease form a cartridge that is coupled to a solenoid activated grease valve and controlled by means of an electrical controller mounted in the cab or on the catwalk of the fifth wheel tractor. The grease gun is operated pneumatically from an onboard air compressor or can be manually operated by means of a hand pump lever built into the grease gun. A primary grease hose carries grease from the grease valve to a grease distribution hub, where it is distributed to two or more distribution hoses that connect to the bottom side of the tractor mounted lower fifth wheel plate. The grease is forced up through holes in the lower fifth wheel plate, into grease slots on the top side of the lower plate.

Abstract: An in-line lubricator for a pneumatic tool system includes a body defining a fluid reservoir and a working passageway and an actuator positionable within the body. The actuator includes an elongated body having a transfer cavity formed therein which is in fluid communication with the fluid reservoir when the actuator is in a first position and which is in fluid communication with the working passageway when the actuator is in the second position. Movement of the actuator from the first position to the second position transports a predetermined amount of fluid from the fluid reservoir into the working passageway.

Abstract: This invention relates to an accessory for maintaining bearings, more particularly but not exclusively, to an accessory for use in the cleaning of bearings. The bearings maintenance accessory is used for the maintenance and cleaning of a bearing located on a shaft within a bearing house. The accessory consists of an annular manifold split into at least two parts. Each of the two parts has interlocking formations for releasably interlocking the parts together about a shaft. The manifold has an inlet in flow communication with an outlet through a flow passage for forcing a fluid through the manifold. A side of the manifold having the outlet is engageable against a face of a bearing house.

Abstract: A grease bearing packer device includes a cylindrical container filled with grease into which a stem member including a piston and a concave frustoconical bearing support plate are positioned. A cap member with a convex bearing engagement plate is pushed toward the stem member to retain a bearing between frustoconical surfaces so that the assembly may be manually pushed into the grease filled container thereby causing grease to flow into a bearing retained between the plates.

Abstract: A press for extruding lubricating grease has a press head with a high pressure reciprocating pump, a high-pressure outlet opening with a check valve, a low-pressure intake opening for feeding the mass to be extruded to the reciprocating pump, and a connection on the press head for connecting a pipe thereto. The pipe receives therein a grease filled cartridge having a displaceable trailing piston. A cartridge-connecting element has a connection for the cartridge, and the pipe is open at that end thereof oriented away from the press head, whereby when the cartridge is connected to the cartridge-connecting element, it protrudes from the open end of the pipe, is guided radially by the pipe and is retained axially by the cartridge-connecting element.

Abstract: A liquid changer includes a base, a liquid tank, a pump and a changeover valve. The base has two insert grooves for the liquid tank and the pump to fit therein to stand up. The changeover valve is located at one side of the pump. Switching the changeover valve to IN or OUT position can pump out the liquid in the liquid tank or exhaust out the liquid in a container of any other use. Thus the liquid changer can be used in two ways by means of the changeover valve easily switched. In addition, the pump is located outside the liquid tank, increasing liquid volume to be stored in the liquid tank.

Abstract: A device for recovering fluid from a reservoir having a lower drain. The device includes a first coupling connectable to a drain of a reservoir and having an internal passage for fluid flow therethrough. A conduit has one end connected to the first coupling for fluid flow into the conduit and a second end opposite the first end with a valve to control fluid flow through the conduit. A probe, defining a fluid passage, has a tip portion for actuating the valve from its normally closed position to an open position upon insertion of the tip portion in the valve to allow fluid flow through the valve and the probe. A portable receptacle is attached to the probe for collecting fluid when the valve is actuated to the open position. A portable pump reduces the pressure in the receptacle to draw fluid through the conduit and into the receptacle.

Abstract: A grease packer (10) for packing grease into a bearing (15) has an inner race and an outer race, having a non-rigid bearing holder (11) that defines a conical chamber (12) having a first open end (13) and a second open end (14) through which the bearing (15) may be loaded into the packer (10) with the outer race (16) sitting on the inner wall (17) of the conical chamber (12) and the bearing (16) spaced from the first open end. A non-rigid insert (20) has a first end defined by a stub (22) adapted to pass through the inner race (18) of the bearing (16) located in the conical chamber (12) and a conical outer surface (23) adapted to seat against the inner race (18) of the bearing (16). Grease applying means (38, 43) is connected to the bearing holder (11) to force grease through the first opening (13) of the bearing holder (11) and into the bearing (16) so as to pack the bearing (16) with grease.

Abstract: A dispenser for selectively dispensing oil onto a cutting member of a power tool. The inventive device includes a reservoir attachable to or integral with a body of a power drill. A dispensing assembly extends from the reservoir into close proximity to a drill bit of the drill. A pump assembly extends from the reservoir for operation by a digit of a human hand to effect dispensing of a fluid from the reservoir and onto the drill bit.

Abstract: A portable oil suction device including a solid oil tank, a top cover securely fixed to the top open end of the oil tank and having a unitary handle for carrying by hand, a pump cylinder disposed inside the oil tank, a plunger moved in the pump cylinder to induce a suction force for drawing engine oil from an engine into the oil tank, and a control valve carried on a link on the bottom side of the top cover and controlled by a float to stop the air passage on the cover when the engine oil in the oil ,tank reaches the high oil level.

Abstract: An apparatus for cleaning and lubricating a bicycle chain while riding is provided. The apparatus includes a water reservoir, a lubricant reservoir and a device for transporting the lubricant and water to an injecting device for injecting said fluids onto the chain. Also provided is a device for enabling the water to be added to further cleansing agents in a dispenser before being gravitated to the injecting device. Similarly, a pump is provided for forcing a controlled quality of lubricant to the injecting device.

Abstract: A new and improved oil drainage device. The device includes an oil receptacle upon which is mounted an oil pump. The pump can be connected, by way of a length of flexible tubing and a quick coupling, to the drainage hole of an oil pan. Thus, the device serves to pump oil from the drainage hole through the tubing and into the receptacle. The receptacle can alternatively be removably coupled to a larger oil receptacle by way of coupling assembly so that the receptacle is for industrial applications, whereas the former embodiment is for individual automotive or marine use.

Abstract: A new and improved trailer fifth wheel lubrication apparatus is carried by a truck and includes a fifth wheel assembly which has lubrication channels and fittings for conveying lubricant to an upper surface of the fifth wheel assembly. Lubricant conveyances are connected to the fittings for conveying lubricant to the fifth wheel assembly. A main lubricant supply line is connected to the lubricant conveyances. A lubricant supply assembly is connected to the main lubricant supply line. A power assembly is connected to the lubricant supply assembly and forces discharge of lubricant from the lubricant supply assembly into the main lubricant supply line. A control assembly controls flow of power from the power assembly to the lubricant supply assembly. The control assembly includes an actuator assembly located in a cab of the truck. A lubricant distribution assembly is connected to the lubricant conveyances and conveys lubricant to the lubricant conveyances.

Abstract: This invention relates to a grease pump and in particular to one including a body portion having a main tube and a cover threadedly engaged with an end of the main tube, an adjusting device mounted with the main tube and having a throttle valve, a steel ball, a seat, a first piston, and a first Venturi tube, a resilient member disposed within the first Venturi tube, a pumping device including a second Venturi tube, a sleeve, a second piston, two oil seals, a head, a packing and a nozzle, a sealing ring mounted between the nozzle and the head, whereby the grease pump may be operated with a single hand and is especially useful in a narrow space.

Abstract: An apparatus that facilitates the filling of a marine engine lower unit reservoir with gear lube. A squeezable container having a conical spout with a threaded base is modified by cutting off a substantial part of the spout, leaving only a truncated, unthreaded part above the threaded base. The threads at the base of the spout engage complementally formed threads in a fitting member having an axial bore disposed in fluid communication with a first end of an elongate flexible tube that carries a clamp member operable to selectively open and close the tube to fluid flow. The opposite end of the tube is confluent with an axial bore formed in another fitting that is adapted to engage either a drain opening or a vent opening in a lower unit. The lower unit is filled by elevating and inverting the squeezable gear lube container when the clamp is open and the proper fitting is engaged with the drain opening.

Abstract: A lubricant filled reservoir attached to a pressuring device is adapted to deliver lubricant from the reservoir to between the padding layers of the shaker heads. The lubricant reservoir and pressuring device in one arrangement of the invention is a manually operated hand-held grease gun attachable to a lubricant fitting which extends through an outer pad of the shaker head to a second layer of padding. In another arrangement of the invention the lubricant reservoir is mounted on the harvester and the pressuring device is either manually or power operable from within the driver's cab. A conduit extending from the mounted lubricant reservoir to the shaker head padding is generally permanently attached as a part of the machine. The driver in this arrangement may grease the shaker heads periodically without stopping the tree shaking process or leaving the driver's cab.

Abstract: A lubrication pump includes a piston and cylinder pump assembly comprising a piston arranged for reciprocation within and relative to a cylinder and having a charging stroke and a discharging stroke, a motor drivingly connected to the piston and cylinder assembly and a priming means including a priming handle coupled to the piston and cylinder assembly. In order to reduce the risk of damage to the pump or parts of a downstream lubricant distribution system through excessively forceful use of a priming handle and to provide a visual indication of the operation of the pump, a resilient member is provided in the coupling between the priming handle and the assembly such that movement of the priming handle to move the piston relative to the cylinder through the discharging stroke can take place without corresponding movement of the piston relative to the cylinder by deformation of the resilient member.

Abstract: A grease gun has a grease container with a low pressure piston, and a high ressure part with a high pressure piston in a passage. The high pressure part is located on a cap screwed to the grease container. The high pressure part is connected through a hole with the interior of the grease container and has an outlet nozzle extending perpendicularly to the high pressure piston and having a passage and a valve. A hand lever is journalled to the high pressure piston and mounted on a pivoting link joining it to the high pressure part. The high pressure part and the outlet nozzle are made as an integral one piece component bend of round steel stock pressed and bent into an L-shape into which the necessary passages are formed after the bending and pressing. These passages may be formed also by pressing, or drilling, or the like.

Abstract: There is disclosed an oil changing and lubricating system for a vehicle comprising a housing connectable to the vehicle, a pump affixed to the housing, the intake of the pump communicating with an oil reservoir for the vehicle and the outlet of the pump being adapted for communication with a receptacle for oil removed from the reservoir when the pump is in use and lubricant inputs mounted on the housing for connection to a supply of lubricant, the inputs communicating with the points of the vehicle requiring lubrication for the delivery of lubricant thereto.

Abstract: Disclosed is a grease gun comprising a tubular casing having a grease pump attachment at one end and a cover at the other end which fits internally against the casing rim. A draw rod extends into the casing through the cover and carries an internal pressure collar with a compression spring acting between the cover and the pressure collar. A small section opening is provided in the casing at the pump attachment end for the expulsion of air from the casing. The draw rod can be clamped in position with respect to the cover by a clamping device and the design of the cover is such that when the draw rod is clamped in position and then pushed inwardly of the casing, movement of the cover in the casing is facilitated.

Abstract: A liquid-oil feeder is provided for supplying various metered amounts of oil to a plurality of regions. The feeder has a tank of oil and an oil pick-up chamber reciprocating in and out of the supply of oil. The chamber contacts a transfer plate and a longitudinally adjustable rod displaces the oil from the chamber to the transfer plate. The metered amount of oil then flows from the transfer plate through a spout to an outlet leading to an oil line for carrying the oil to the various regions. A plurality of such chambers and transfer plates, displaced as a unit and each associated with a separate adjustable rod and outlet, may be provided. The feeder is capable of supplying oil in a continuous flow of droplets and also has flushing apparatus for supplying a stream of oil to various regions.

Abstract: An oiler for a motorcycle chain has a container for an oil can the discharge therefrom controlled by a plunger exposed at one end. The container has a port and includes an open-ended chamber which the can fits and a cap provided with a lever yieldably held in a first inoperative position and moved into a second position by means operated by the operator and in the second position the plunger is actuated to effect oil discharge through a conduit extending through the container port. The container is attachable to the frame of the motorcycle in a position such that discharged oil is delivered to a course of the chain.

Abstract: A lubricant feed system for use in lubricating the cutting attachments of a chain saw having an internal combustion engine and a lubricant tank. The feed system has a system of passageways permitting flow of lubricant from the tank to the guide bar. A check valve and a manually operable plunger are positioned in the passageway and spaced from each other to define a first chamber. The check valve permits flow from the tank to the bar pad and is openable by pressure in the tank. A metering valve for regulating the flow from the check valve to the bar pad is reciprocable between a closed and an opened position. The reciprocation and thus the position of the valve are controllable by manually operable means extending from the metering valve to the exterior. The metering valve has means to urge it to the closed position. The urging means exerts a force that can be overcome by operation of the plunger.

Abstract: A grease gun characterized in that a dispensing head assembly having a lever-operated piston pump is screwed onto the head end of a grease-containing cylinder and in that a spring-biased plunger and rod assembly inserted into said cylinder from the head end thereof with a rear end cap engaging an inturned flange at the rear end of said cylinder is operative to feed grease from the cylinder to the pump.

Abstract: A grease gun of the type wherein a dispensing head assembly having a lever-operated piston pump is screwed onto the head end of a grease-containing cylinder and wherein a spring-biased plunger and rod assembly in said cylinder is operative to feed grease from the cylinder to the pump, said dispensing head assembly being characterized in that the head cap thereof has diametrically opposite holes through the side wall thereof in which a pump cylinder of circular cross section is firmly supported, in that a sheet metal clevis for a link of the pump-operating lever has its base secured as by welding on the end wall of the head cap, and in that a check valve body is secured in a cross bore adjacent the closed end of the pump cylinder and extends through aligned holes in the head cap end wall and the clevis base to provide a pump outlet to which the grease dispensing tube is connected, said check valve body having a shoulder engaging the clevis base to prevent breaking away of the clevis from the head cap end wall

Abstract: A rust retarder applicator which includes a tubular length to be inserted into the combustion chamber of an internal combustion engine when not in use, which is of a cross sectional area adapting the same for insertion through the spark plug opening and which includes a plug slidable therealong which is conical with its lower end being sized for receipt in the spark plug opening and its upper end being sized greater than the cross sectional area of the spark plug opening so that, when the plug is pressed into the spark plug opening, it will be closed, and the upper end of the tubular length including an adapter for connection to an aerosol spray can source of oily material to be sprayed into the combustion cylinder when the spark plug has been removed to weatherproof it.

Abstract: Apparatus is provided for attachment to a bearing housing through an access conduit, which provides means for allowing observation of the lubricating oil in the bearing housing, ascertaining the level of oil in the lubricating housing, and maintaining a desired fluid level in the bearing. The apparatus provided has an upper chamber and lower chamber, separated by a partition. An opening in the partition allows fluid communication between the upper and lower chambers with a tube connected to the opening and extending a distance into the lower chamber. An aperture through the housing in the lower chamber above the lower end of the tube allows ambient pressure in the lower chamber. Lubricating oil in the two chambers may be pushed from the chambers through the access conduit by a plunger in the upper chamber when the aperture is covered by the hand to remove any blockage of the conduit and then upon withdrawal of the plunger bringing fluid back into the lower and upper chamber.

Abstract: A reservoir-type pump structure for liquid and viscous materials, particularly lubricating materials such as lubricating oils and greases, in which the reservoir is formed as an independent unit readily detachable from the pump structure or attached thereto, whereby the pump may be readily supplied with lubricating materials by interchanging reservoirs, eliminating the need for refilling the reservoir at the location of use.

Abstract: A grease gun having a hollow cylindrical body closed at one end and threadedly engaged at the other end with a removable delivery nozzle. Within the cylindrical body there is a central push rod having one end extending through a central aperture in the closed end thereof which is slidably retained to a plunger within the body by means of a locking ring, and a barrel spring around the push rod adapted to be compressed during retraction of the push rod and its associated plunger. The push rod comprises a circumferentially recessed groove between the locking ring and exposed end and an elongated detent portion in spaced relation to the circumferentially recessed groove near the exposed end. The removable delivery nozzle includes a central bore and a check valve therein adapted to be biased by the pressure of the grease in the cylindrical body in order to permit the passage of the grease therefrom into the removable delivery nozzle.