DE2214652A1 - - Google Patents

Description

DR.-1 NG. G. RIEBLING 22Ί4θθ2 PATENT ADVOCATE

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899 Lindau (Lake Constance)

Your message from Rennerle 10 · P.O. Box 3160

March 24, 1972

THE GREASE APPLIANCE COMPANY LIMITED, 18-2o Waterloo Road, Stockport, County of Chester /England

Grease gun

This invention relates to improvements in grease guns.

A grease gun has been proposed in which

a cylinder has a piston that extends through

Movement of a manually operated spring-loaded

sliding plunger is movable therein, so that a

Stroke of the plunger in one direction causes the piston

will / suck grease from a grease reservoir into the cylinder,

209841/0827 - 2 -

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and stroke of the plunger against the spring in the opposite direction that will cause the piston to move to squeeze sucked grease out of a nozzle attached to one end of the cylinder; the storage container contains a drum with a base and a rim by which it is detachably connected to the cylinder is, the drum is designed to receive a disposable cartridge having a base and a rim so that when the cartridge is received in the associated drum, the cartridge edge to an annular Flange on the cylinder to form a substantially airtight seal therewith, the The cartridge has a slider slidably disposed therein attached to the lower end of the cartridge, when the cartridge is filled with fat, the rim of the drum being shaped to form a passage, through which air in the inserted cartridge can escape if the drum is not firmly tightened on the cylinder is, wherein the cartridge is pushed up by a rod or the like. In the reservoir.

The object of the invention is to provide a storage container or a cartridge with an open face and a sliding Provide slider therein to prevent the entry of air into the fat and to eliminate the spring pressure, wherein the slide by the suction created by the piston

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is pulled up in the reservoir or cartridge.

According to the present invention, a grease gun contains a cylinder having a manually operated piston therein and a grease reservoir, which is sealed at one end in a cap that forms a housing for the cylinder, and at the the other end is open and is connected to the cap via an inlet port, creating a hub of the piston in one direction, sucking grease in the cylinder, and one stroke in the opposite direction Inlet opening from the reservoir closes and an opening opens to the grease of an outlet nozzle feed, a slide being inserted into the end face of the storage container facing away from the cap, which is drawn up in the reservoir by the suction created by the piston when the fat of which is sucked in, and a manually controlled valve that is in communication with the cylinder housing, to vent the press.

The invention is based on preferred embodiments in connection with the accompanying drawings.

It shows:

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Figure 1 is a side view of one form of grease gun;

Fig. 2 is a vertical section of the same;

3 shows a vertical section through a further grease gun;

4 shows part of a vertical section of a further modification of the storage container;

Figure 5 is a side view of another form of grease gun;

Figure 6 is a partial view of a grease gun cap employing a grease fill valve.

As shown in Figs. 1 and 2, a grease gun is formed with a cap 1 which receives a piston 2 on the a bolt 5 is rotatably mounted on a manually operated lever 3 which is rotatable on a bolt 6 is mounted on the cap 4. The bolt 5 extends through arcuate grooves 7 in cheeks 4 a on the cap 4 to allow the piston 2 to move in the cylinder 1 under the action of the handle 3.

The cap 4 is on the end face of a grease container 8

_ C -

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screwed that is open on the other side and how As shown in Figs. 2 and 3, a cartridge 9 contains "which receives the fat. The cartridge 9 is flanged with a crimp Edge 11 formed, which rests on the edge of the screwed side of the fat container 8 and with the seat in the Cap 4 forms an airtight seal.

A cylindrical slide 12 is inserted into the side of the cartridge 9 facing away from the cap 4, the The end of the reservoir is bent inward to prevent the slide from being ejected from the reservoir.

The side of the cartridge 9 that differs from that with the crimped Edge 11 provided side is removed is closed by a cap, which is removed when the Cartridge is inserted into the housing. The cylindrical slide 12 is inserted into the cartridge 9 before the Cartridge is inserted into the reservoir with the cap removed, the slide 12 having a sliding fit in the cartridge to prevent air from reaching the fat therein.

After inserting the cartridge into the reservoir, it will the container is screwed into the cap 4 to form the seal between the rim and a seat on the cap.

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An inlet port 13 is provided between the container and the cap, and the actuation of the piston 2 unidirectional creates suction on the cartridge 9 to draw grease therefrom into the cylinder. When the piston 2 is moved manually in the direction of arrow A, the inlet port 13 is through a ball 14 is closed and a second opening 15 is opened, through which the load of fat in the cylinder is ejected to an outlet nozzle. After the fat load has been moved through the opening 15, this by a ball 16 under the action of a spring 17 closed.

When inserting a new cartridge into the press, the air is in the part of the grease container between the Opening 13 and the cylinder 1 and a vent valve 18 is provided on the cap 4. The valve 18 is open and the slide 12 is pushed to expel air from the cap. As soon as grease from the vent valve 18 exits, this is closed and the cap is then vented to feed grease to the outlet nozzle. The actuation of the piston 1 sucks grease from the cartridge and pulls the slide 12 in the direction of the opening 13.

The handle 3 (FIGS. 3 and 5) can also be attached to joints 19

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be rotatably mounted, which are rotatably mounted on the cap 4, with grease supplied to the outlet nozzle21 which is arranged in alignment with the magazine.

In a further alternative, the fat can be fed directly into the fat container through an inlet valve 22 in the cap 4 8, the valve 22 being closed by a further spring-loaded ball valve, as shown in FIGS. 4, 5, 6. The slide 12 is formed in a sliding fit in the reservoir and is applicable to the presses shown in Figs.

Claims

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Claims (7)

Claims 1Λ Grease gun, characterized by> - s
a cylinder (1) which has a piston (2) therein which is manually operated by a handle (3) and a FEtt container (8) which is sealed on one end in a cap (4) forming a housing for the cylinder and at the other end is open, and is in communication with the cap via an inlet opening (13), whereby one stroke of the piston (2) in one direction sucks grease into the cylinder, and a stroke in the opposite direction the inlet opening (13 ) from the grease container (8) closes, and an opening (15) opens in order to supply grease to an outlet nozzle, a slide (12) being inserted into the end face of the grease container (8) facing away from the cap (4), which through the from suction generated by the piston is drawn up in the grease container (8) when the grease is sucked therefrom, and a manually controlled valve (18) which is in communication with the cylinder housing to vent the press. 209841/0827 22H652 2. Grease gun according to claim 1, characterized in that one is the fat containing cartridge (9) is inserted in the grease container (8). 3. Grease gun according to claim 1 or 2, characterized in that the slide (12) is inserted in a sliding fit in the cartridge (9) or the grease container (8). 4. Grease gun according to one of claims 1 to 3, characterized in that the free end of the piston (2) is rotatably mounted on the handle (3). 5. Grease gun according to claim 1, characterized in that the fat is over a one-way valve (22) is inserted into the cap (4), 6. Grease gun according to one of claims 1 to 5, characterized in that - Io - 209 84 1/0827 -Io - 22U652 the bolt (5) connecting the piston (2) to the handle (3) passes through arcuate slots (7) extends in cheeks (4a) on the cap (4). 7. Grease gun according to one of claims 1 to 5, characterized in that a joint (19) connects the piston (2) to the handle (3). 20984 1/0827 Blank page