US3276434A - Pencil pointer - Google Patents

Pencil pointer Download PDF

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Publication number
US3276434A
US3276434A US474838A US47483865A US3276434A US 3276434 A US3276434 A US 3276434A US 474838 A US474838 A US 474838A US 47483865 A US47483865 A US 47483865A US 3276434 A US3276434 A US 3276434A
Authority
US
United States
Prior art keywords
abrasive element
pencil
holder
post
abrasive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US474838A
Other languages
English (en)
Inventor
Virgil D Dorstewitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRU POINT PRODUCTS Inc
Original Assignee
TRU POINT PRODUCTS Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TRU POINT PRODUCTS Inc filed Critical TRU POINT PRODUCTS Inc
Priority to US474838A priority Critical patent/US3276434A/en
Priority to SE8518/66A priority patent/SE308680B/xx
Priority to DE1966T0031411 priority patent/DE1511480B2/de
Application granted granted Critical
Publication of US3276434A publication Critical patent/US3276434A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L23/00—Sharpeners for pencils or leads
    • B43L23/006—Sharpeners for pencils or leads with rasping surfaces

Definitions

  • the body portion of the sharpening member is formed of non-rustable or non-corrodable material such for example as thermoplastic materials.
  • FIG. 1 is a side elevational view of a pencil sharpener embodying my invention.
  • FIG. 2 is a plan view with the pencil holder removed, the pencil holder constituting the top member.
  • FIG. 3 is a view of the body member and certain of the parts mounted therein on a line corresponding to line 3-3 of FIG. 2.
  • FIG. -4 is an enlarged fragmentary vertical section of the abrasive member.
  • FIG. 5 is a vertical section of the holder member for the abrasive member.
  • FIG. 6 is a fragmentary sectional view illustrating the positioning of a pencil to be sharpened.
  • the body member 1 is adapted to rest upon a supporting surface and has an upwardly opening chamber 2 preferably cylindrical and in the commercial embodiment desirably somewhat tapered.
  • the chamber has an upwardly facing flat bottom 3.
  • a post 4 is disposed centrally of the chamber with its lower end fixedly secured in an opening 5 provided therefor. The upper end of the post projects substantially above the top of the body member and is provided with a threaded upper end 6 and an upwardly facing bearing 7 at the inner end of the threaded portion.
  • a bearing member 8 preferably provided with an upwardly projecting peripheral flange 9, is supportedly mounted on the bottom of the body member as is illustrated in FIG. 3, and it has a post receiving opening 10 surrounded by an upwardly projecting flange 11.
  • a pencil holder 12 is provided with a socket 13 open at its upper and lower ends and adapted to receive a pencil as is illustrated in FIG. 6.
  • the top member 12 is rotatably mounted on the post 3,276,434 Patented Oct. 4, 1966 and retained thereon by the nut 14 which rotatably supports the pencil holder on the post and permits the rotation thereof by means of a pencil inserted in the pencil holder 13.
  • the abrasive element 15 of the embodiment illustrated is downwardly tapered and provided with an offset portion 16 at its upper end which serves to stiffen the abrasive element and also serves as a stop limiting the inward movement of the abrasive element relative to the pencil holder thereby preventing the entire lead being ground away.
  • the abrasive element is slidably and nontiltably supported on the bottom bearing member 8.
  • the abrasive element has inwardly projecting portions 18 at its lower end provided with upwardly facing seats 19 and inclined way portions 20 extending from the seat with their lower edges merging into the flange portions 18.
  • the circular abrasive member holder or coupling 22 is provided with laterally projecting peripherally spaced lugs 23 and 24 which project over the flange 18 but are dimensioned and spaced to permit the insertion and removal, as well as the rotative engagement of the abrasive element with this holder member.
  • the post is provided with an abutment 25 which is fixedly secured to the post in downwardly spaced relation to its upper end.
  • the coil spring 26 is in thrust engagement with the abutment 25 and the lower end of the spring is in thrust engagement with the coupling member 22, being seated in the inwardly projecting flange portion thereof.
  • a lug 27 on the lower end of the spring projects into engagement in a notch 28 in the lug 24.
  • the top member 12 is removably secured to the post member 4.
  • the top member is removed, the user can hold the holder member 22 against rotation as by engaging a pencil or other tool behind one of the lugs 23 or 24, while rotating the abrasive element 15 to cause the lugs 23 and 24 to move out of the seats 19 and down the inclines 20 to the notches 21 and then lift outwardly the abrasive lined cup member 15. Insertion of a new abrasive cup is accomplished by reverse sequence of these steps.
  • abrasive element change is accomplished without the operators hands touching more than the rim 16 of the abrasive cup which remains clean as all pencil lead dust falls to the bottom of the cup and body, below the rim 16.
  • the abrasive element and the holder member are desirably formed of thermoplastic material, this from the production and cost standpoint and also from the fact that such material does not rust even though subjected to moisture.
  • the holder member 22 is lifted up out of contact with the bottom plate 8 when in use by engagement of the lugs 23 and 24 with the inclined ways 20 and seats 19.
  • a pencil pointer comprising, a body member adapted to rest upon a supporting surface and having an upwardly opening chamber therein, the chamber having a substantially fiat bottom portion, a post fixedly secured to the bottom of the body member and projecting above the top thereof, a bearing member supportedly disposed on the bottom of said body member, a pencil holder supportedly and rotatably mounted on said post and constituting a cover for said body member chamber and provided with a pencil socket spaced radially from the axis of the holder and adapted to supportedly receive and guide a pencil in a circular path as the pencil holder is rotated, 21 downwardly tapered abrasive element open at the top and having a continuous inner abrasive surface, said abrasive element being slidably and nontiltably supported on said bearing member, said abrasive element having an inwardly projecting portion on its inner end provided with upwardly facing seats, a coil spring disposed about said post and laterally swingable relative thereto, said post having an a
  • a pencil pointer comprising, a body member adapted to rest upon a supporting surface and having an upwardly opening chamber therein, the chamber having a substantially flat bottom portion, a post fixedly secured to the bottom of the body member and projecting above the top thereof, a bearing member supportedly disposed on the bottom of said body member, a pencil holder supportedly and rotatably mounted on said post and constituting a cover for said body member chamber and provided with a pencil socket spaced radially from the axis of the holder and adapted to supportedly receive and guide a pencil in a circular path as the pencil holder is rotated, a downwardly tapered abrasive element open at the top and having a continuous inner abrasive surface, said abrasive element being slidably and nontiltably supported on said bearing member, said abrasive element having an inwardly projecting portion on its inner end provided with upwardly facing seats, a coil spring disposed about said post and laterally swingable relative thereto, said post having an a
  • a pencil pointer comprising, a body member adapted to rest upon a supporting surface and having an upwardly opening chamber therein, the chamber having a substantially fiat bottom portion, a post fixedly secured to the bottom of the body member and projecting above the top thereof, a bearing member supportedly disposed on the bottom of said body member in engagement with said post and provided with an upwardly projecting peripheral flange, a pencil holder supportedly and rotatably mounted on said post and constituting a cover for said body member chamber and provided with a pencil socket spaced radially from the axis of the holder and adapted to supportedly receive and guide a pencil in a circular path as the pencil holder is rotated, a downwardly tapered abrasive element open at the top and having a continuous inner abrasive surface, said abrasive element being slidably and nontiltably supported on said bearing member, said abrasive element having an inwardly projecting portion on its inner end provided with upwardly facing seats, a coil spring disposed
  • a pencil pointer comprising a body member adapted to rest upon a supporting surface and having an upwardly opening chamber therein, a post fixedly secured to the bottom of the body member and projecting above the top thereof, a pencil holder supportedly and rotatably mounted on said post and constituting a cover for said body member chamber and provided with a pencil socket spaced radially from the axis of the holder and adapted to supportedly receive and guide a pencil in a circular path as the pencil holder is rotated, a cylindrical downwardly tapered abrasive element open at the top and having an inwardly projecting portion on its end provided with upwardly radially spaced seats, a coil spring disposed about and laterally swingable relative to said post, the outer end of said spring being supportedly connected to said post, a holder member for said abrasive element provided with a seat with which the inner end of said spring is thrustingly engaged and having radial lugs detachably engageable with said seats in said abrasive element, the opening
  • a pencil pointer comprising a body member adapted to rest upon a supporting surface and having an upwardly opening chamber therein, a post fixedly secured to the bottom of the body member and projecting above the top thereof, a pencil holder supportedly and rotatably mounted on said post and constituting a cover for said body member chamber and provided with a pencil socket spaced radially from the axis of the holder and adapted to supportedly receive and guide a pencil in a circular path as the pencil holder is rotated, a cylindrical downwardly tapered abrasive element open at the top and having an inwardly projecting portion on its end provided with upwardly radially spaced seats, a coil spring disposed about and laterally swingable relative to said post, the outer end of said spring being supportedly connected to said post, a holder member for said abrasive element provided with a seat with which the inner end of said spring is thrustingly engaged and having radial lugs detachably engageable with said seats in said abrasive element, the opening
  • a pencil pointer comprising a body member having a chamber therein open at its outer end, a post supportedly connected to the inner end of the body member and projecting from the chamber, a pencil holder rotatably mounted on said post and provided with a pencil socket spaced radially from the axis of the holder and adapted to supportedly receive and guide a pencil in a circular path as the pencil holder is rotated, a cylindrical inwardly tapered abrasive element of form retaining thermoplastic material supported at its inner end in said body member and having an opening in its inner end and being provided with outwardly facing radially spaced holder member seats, a spring laterally swingable relative to said post and connected thereto at its outer end, a holder member for said abrasive element of form retaining thermoplastic material with which the inner end of said spring is in thrust engagement, said holder member and said abrasive element having coengaging means for releasably holding said abrasive element while permitting lateral shifting thereof.
  • a pencil pointer comprising a body member having a chamber therein open at its outer end, a post supportedly connected to the inner end of the body member and projecting from the chamber, a pencil holder rotatably mounted on said post and provided with a pencil socket spaced radially from the axis of the holder and adapted to supportedly receive and guide a pencil in a circular path as the pencil holder is rotated, a cylindrical inwardly tapered abrasive element supported at its inner end in said body member and having an opening in its inner end and being provided with outwardly facing radially spaced holder member seats, a spring laterally swingable relative to said post and connected thereto at its outer end, a holder member for said abrasive element with which the inner end of said spring is in thrust engagement, said holder member and said abrasive element having wongaging means for releasably holding said abrasive element while permitting lateral shifting thereof.
  • a pencil pointer comprising a body member having a chamber therein open at its outer end, a post supportedly connected to the bottom of said chamber, a pencil holder supportedly and rotatably mounted on said post and provided with a pencil socket disposed radially from the post, a cylindrical inwardly tape-red abrasive element of form retaining thermoplastic material supported at its inner end in said body member chamber and having an opening in its inner end and being provided at its inner end with outwardly facing holder member seats, a coil spring connected at its outer end to said post and laterally swingable relative thereto, a holder member for said abrasive element with which the inner end of said spring is in thrust engagement, said holder member being detachably engageable with the inner end of said abrasive element whereby said abrasive element may be removed and replaced without removing said spring and holder member from said post.
  • a pencil pointer comprising a body member having a chamber therein open at its outer end, a post supportedly connected to the bottom of said chamber, a pencil holder supportedly and rotatably mounted on said post and provided with a pencil socket disposed radially from the post, a cylindrical inwardly tapered abrasive element supported at its inner end in said body member chamber and having an opening in its inner end and being provided at its inner end with outwardly facing holder member seats, a coil spring connected at its outer end to said post and laterally swingable relative thereto, a holder member for said abrasive element with which the inner end of said spring is in thrust engagement, said holder member being detachably engageable with the inner end of said abrasive element whereby said abrasive element may be removed and replaced without removing said spring and holder member from said post.

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  • Drawing Aids And Blackboards (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
US474838A 1965-07-26 1965-07-26 Pencil pointer Expired - Lifetime US3276434A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US474838A US3276434A (en) 1965-07-26 1965-07-26 Pencil pointer
SE8518/66A SE308680B (forum.php) 1965-07-26 1966-06-22
DE1966T0031411 DE1511480B2 (de) 1965-07-26 1966-06-22 Bleistiftspitzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US474838A US3276434A (en) 1965-07-26 1965-07-26 Pencil pointer

Publications (1)

Publication Number Publication Date
US3276434A true US3276434A (en) 1966-10-04

Family

ID=23885138

Family Applications (1)

Application Number Title Priority Date Filing Date
US474838A Expired - Lifetime US3276434A (en) 1965-07-26 1965-07-26 Pencil pointer

Country Status (3)

Country Link
US (1) US3276434A (forum.php)
DE (1) DE1511480B2 (forum.php)
SE (1) SE308680B (forum.php)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667516A (en) * 1970-03-27 1972-06-06 Robert M Grosjean Apparatus for sharpening leads for pencils or the like
USD559324S1 (en) * 2006-06-22 2008-01-08 Acme United Corporation Pencil sharpener
USD559323S1 (en) * 2006-06-22 2008-01-08 Acme United Corporation Pencil sharpener

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540320A (en) * 1949-03-22 1951-02-06 Edward L Cayo Pencil pointer
US2785657A (en) * 1953-05-22 1957-03-19 Wolfson Walter Adjustable pencil sharpener
US3042003A (en) * 1956-02-16 1962-07-03 Virgil Dorstewitz Pencil pointer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540320A (en) * 1949-03-22 1951-02-06 Edward L Cayo Pencil pointer
US2785657A (en) * 1953-05-22 1957-03-19 Wolfson Walter Adjustable pencil sharpener
US3042003A (en) * 1956-02-16 1962-07-03 Virgil Dorstewitz Pencil pointer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667516A (en) * 1970-03-27 1972-06-06 Robert M Grosjean Apparatus for sharpening leads for pencils or the like
USD559324S1 (en) * 2006-06-22 2008-01-08 Acme United Corporation Pencil sharpener
USD559323S1 (en) * 2006-06-22 2008-01-08 Acme United Corporation Pencil sharpener

Also Published As

Publication number Publication date
SE308680B (forum.php) 1969-02-17
DE1511480A1 (de) 1969-09-11
DE1511480B2 (de) 1977-01-13

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