Patent ID: 9458964
Filing Date: 2016-10-04
CPC Classification: F16N

Claim Text:
1. A lubricant dispenser comprising: a lubricant cartridge having a storage space for lubricant with a front outlet port for the lubricant; a spindle in the cartridge and defining an axis; a support detachably connected to the lubricant cartridge and having a seat open axially forward toward the space; a battery-operated motor carried on the support and having a drive shaft extending axially forward into the seat for driving the spindle; an axially displaceable piston for ejecting the lubricant and connected to the spindle such that rotation of the spindle axially forwardly advances the piston, pressurizes the lubricant in the space, and presses lubricant in the space forward out of the port; an adapter rotatable in the seat of the support a roller bearing in the seat axially between the support and the adapter; and a retaining cap attached to the support having a hole through which the spindle extends, and formed with an inner edge projecting over an outer edge of the adapter in the seat, the inner edge bearing axially rearward on the adapter and retaining the adapter and the roller bearing in the seat only when the lubricant in the space is not pressurized, and spaced axially forward from the adapter and out of contact with the adapter when the lubricant is pressurized.