Lead refill cartridge for mechanical pencil
OwnerTor H. Pettersoninventor
Life of this patent
Estimating the term…
Abstract
A cartridge for storing pencil leads and dispensing such leads into the lead storage chamber of a pencil has an assembly slidably mounted therein which has a dispensing spout on one end thereof. Pencil leads are contained within the cartridge and prevented from being released therefrom by a gate member formed on the slidable assembly. When the slidable assembly is actuated to effect slidable motion thereof relative to the main body of the cartridge, the gate member is driven out of the path between the leads and the dispensing spout, permitting the leads to be dispensed into the chamber of the pencil.
Claims8
A cartridge for storing pencil leads and dispensing such leads in the lead storage chamber of a pencil comprising:
- a main body portion having a chamber therein for storing pencil leads,
- an assembly,
- means for movably mounting said assembly in said main body portion,
- said assembly including:
- dispensing means having an aperture formed therein for dispensing leads, said dispensing means comprising means for matingly engaging the lead storage chamber of the pencil,
- gate means positioned in a path between the chamber of said main body portion and said dispensing means aperture for preventing the pencil leads stored in said chamber from reaching said aperture, and
- means including said dispensing means for driving said gate means out of said path to permit said pencil leads to reach said aperture and to be dispensed from said dispensing means, said driving means being operated in response to downward force of said dispensing means against said pencil chamber, thereby causing motion of said assembly relative to the main body portion of said cartridge.
A cartridge for storing pencil leads and dispensing such leads into the lead storage chamber of a pencil comprising:
- a main body portion having a chamber therein for storing pencil leads,
- an assembly slidably mounted in said main body portion, said assembly including:
- dispensing means having an aperture formed therein for dispensing leads,
- gate means positioned in a path between the chamber of said main body portion and said dispensing means aperture for preventing the pencil leads stored in said chamber from reaching said aperture, and
- means for driving said gate means out of said path to permit said pencil leads to reach said aperture and to be dispensed from said dispensing means, said driving means being operated in response to slidable motion of said assembly relative to the main body portion of said cartridge and including an elongated bifurcated arm member having a pair of arm sections joined together by an elastic cross arm, said gate means comprising a tab formed on the free end of one of said arm sections and extending substantially laterally therefrom, a septum running down the main body portion of the cartridge, said arm member being located on one side of said septum, the other side of said septum forming the chamber for said pencil leads, said one of said arm members being driven laterally by said septum in response to said motion of said assembly.
A cartridge for storing pencil leads and dispensing such leads into the lead storage chamber of a pencil comprising:
- chamber for storing pencil leads,
- dispensing means having an apertured portion formed therein for dispensing said leads, said apertured portion being adapted to matingly engage the opening of the lead storage chamber of the pencil,
- gate means positioned in a path between said chamber for storing pencil leads and said dispensing means apertured portion for preventing the pencil leads stored in said chamber from reaching said apertured portion, and
- means for driving said gate means out of said path to permit said pencil leads to reach said apertured portion to be dispensed therethrough into the storage chamber of the pencil, said driving means being operated in response to force applied between the apertured portion of said dispensing means and the opening of the storage chamber of the pencil.
Dependencies are inferred from the claim text.