Hand grease gun with lever-operated piston pump and tubular...

F - Mech Eng,Light,Heat,Weapons – 16 – N

Patent

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Details

F16N 3/12 (2006.01) F16N 13/16 (2006.01)

Patent

CA 2245787

Manual grease gun comprising a tubular reservoir (1) for the grease (7) closed by a rear cover (3), a dual seal pressure piston (10) slidable within the container (1) and a head piece (2) with a reciprocating piston (5) pump manually operated through a lever (6), the suction port of the pump being connected with the interior of said tubular reservoir (1) and the delivery port of the pump being connected with a grease delivery nozzle (8); on the rear cover (3) or on the rear region of the tubular reservoir (1) there is provided a manual reciprocating air compressor (4), the delivery port of which is connected with a rear pressure chamber (12) of the tubular reservoir (1). The diameter of the reciprocating compressor (4) is smaller than the diameter of the tubular reservoir (1), the ratio being preferably below 1/4.

Pistolet graisseur portatif comportant un réservoir tubulaire (1) pour la graisse (7), ce réservoir étant fermé par un couvercle arrière (3), un piston de compression (10) à deux joints d'étanchéité monté coulissant dans le réservoir (1), et un ensemble de tête (2) pourvu d'une pompe à piston alternatif (5) et à actionnement manuel par l'intermédiaire d'un levier (6), l'orifice d'aspiration de la pompe étant relié à l'intérieur dudit réservoir tubulaire (1), tandis que l'orifice de refoulement de la pompe est relié à une buse (8) de distribution de graisse. Le couvercle arrière (3) ou la partie du réservoir tubulaire (1) voisine de ce couvercle comporte un compresseur d'air alternatif (4) à actionnement manuel dont l'orifice de refoulement est relié à une chambre de compression arrière (12) du réservoir tubulaire (1). Le diamètre du compresseur alternatif (4) est inférieur à celui du réservoir tubulaire (1), le rapport étant de préférence inférieur à 1/4.

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