Apparatus and method for abrading pencil lead

Details Apparatus and method for abrading pencil lead Apparatus and method for abrading pencil lead

1978-06-16

1980-12-09

Smith, Gary L.

Bridges

51181R, 144310R, 206224, B43L 2300

Patent

active

042379458

ABSTRACT:
An apparatus and method for abrading pencil lead are provided. The apparatus comprises two major parts-- a receptacle and an abrader. The apparatus is further modified by the addition of two subordinate components-- storage space and graphite dust cleaning compartments. The receptacle is in the form of a container having an open top and is defined by a bottom and two sidewalls; the abrader is in the form of a plate with abrasive surface on both sides. At one end of the abrader, two pivotal means are provided to engage with two pivotal receiving means formed at middle points of two inclining side rims of the receptacle; and the other end of the abrader rests on the end rim of the receptacle. When the graphite dust presents on the surface of the abrader after abrading, the abrader is flipped from one side to the opposite side of the rim, the graphite dust is threby disposed of in the receptacle and the other side of the dust-free abrading surface appears toward the top, ready for the next abrading.

REFERENCES:
patent: 1688840 (1928-10-01), Tevonian
patent: 1863616 (1932-06-01), Bosch
patent: 3254630 (1966-06-01), Tufan
patent: 3840113 (1974-10-01), Bartleson

Affiliated with

Also associated with

Rating

Apparatus and method for abrading pencil lead does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for abrading pencil lead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for abrading pencil lead will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2276363