Patent DE631145C successfully refreshed from Google Patents.
Patent US4048761A successfully refreshed from Google Patents.
US4048761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper stick pointing apparatus
Assignee: SETTERSTIX ACQUISITION CORP
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Filing: 1976-07-09
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Granted: 1977-09-20
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Expires: 1996-07-09
Abstract
Abstract Apparatus for grinding conical points on the ends of paper sticks. The sticks are fed one at a time in spaced relation to pockets on an endless carrier. The sticks have one end extending beyond a lateral edge of the carrier which are ground to a conical point by an abrasive belt supported at an acute angle to the axis of the carrier. The sticks are rotated counter to the direction of travel of the abrasive belt in the carrier pockets by upper and lower contact belts as they are ground to expedite the grinding operation. The abrasive belt is reciprocable 90° to its direction of travel to effect an even distribution of the cutting action over the belt surface.
Inventors
- 👤 Edward D. Cottrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:18
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/02; B24B19/00; B24B19/16
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
238 words
An apparatus for forming a substantially conical point on a cylindrical workpiece comprising, in combination: a. endless carrier means for transporting individual ones of said cylindrical work pieces to a pointing station with one end of said work piece projecting beyond a lateral edge of said carrier means, said endless carrier including a pair of chains each chain of said chain pair having a plurality of identical inner and outer links disposed in an overlapping portion relationship forming opposite parallel edges of each said chain, said overlapping chain portions being pivotally connected to each other, each said link being provided with a centrally disposed upright portion, adjacent link upright portions forming a pocket for receiving one of said work pieces therein; b. hopper means cooperating with said carrier means for supplying individual work pieces to each said carrier means pockets; c. a pair of endless belts, one of said belt pair being disposed below said work pieces, said pair of endless belts being disposed between said chains of said chain pair, said upper belt having a lower run in contact with said work pieces and said lower belt having an upper run in contact with said work pieces, said upper and lower runs moving in opposite directions for rotating said work pieces; and d. abrasive means at said pointing station for contact with the end of said rotating work piece for grinding said end into a conical point.
Claim 2
Independent Claim
238 words
An apparatus for forming a substantially conical point on a cylindrical workpiece comprising, in combination: a. endless carrier means for transporting individual ones of said cylindrical work pieces to a pointing station with one end of said work piece projecting beyond a lateral edge of said carrier means, said endless carrier including a pair of chains each chain of said chain pair having a plurality of identical inner and outer links disposed in an overlapping portion relationship forming opposite parallel edges of each said chain, said overlapping chain portions being pivotally connected to each other, each said link being provided with a centrally disposed upright portion, adjacent link upright portions forming a pocket for receiving one of said work pieces therein; b. hopper means cooperating with said carrier means for supplying individual work pieces to each said carrier means pockets; c. a pair of endless belts, one of said belt pair being disposed below said work pieces, said pair of endless belts being disposed between said chains of said chain pair, said upper belt having a lower run in contact with said work pieces and said lower belt having an upper run in contact with said work pieces, said upper and lower runs moving in opposite directions for rotating said work pieces; and d. abrasive means at said pointing station for contact with the end of said rotating work piece for grinding said end into a conical point.
Claim 3
Dependent Claim
50 words
An apparatus according to claim 1 wherein said abrasive means includes an endless belt having an abrasive surface in contact with one end of said work pieces at an acute angle to the longitudinal axis thereof, said endless belt being reciprocated perpendicular to the longitudinal axis of said abrasive belt.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |