US3702092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pistons for engines
Assignee: Zollner Corp
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Filing: 1971-05-03
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Granted: 1972-11-07
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Expires: 1991-05-03
Abstract
Abstract An engine piston with opposed piston pin bosses depending from the head of the piston and laterally spaced apart. A piston pin is secured within openings in the bosses, such openings being aligned transversely whereby the piston pin also is disposed transversely of the piston. The pin is formed with a plurality of eccentrically disposed holes of selected lengths extending longitudinally of the piston pin. Such holes are spaced predetermined distances apart and are arranged one above another while preferably occupying in whole less area than the solid area of the pin adjoining said holes. These holes in certain instances may be circular in shape and in number ranging for examples from two to six. In other instances the holes may be either rectilinear, oval or approximately triangular in shape and vary in number such for example as three or four thereof.
Inventors
- 👤 Fred Zollner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:52
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F16J1/16; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32893
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
A piston for an engine including a head having ring groove means and spaced depending opposed piston pin bosses formed with transversely aligned openings, a one piece piston pin securely mounted in said openings and provided with a multiple number of eccentrically disposed holes of predetermined size, shape and number extending longitudinally of said pin, one thereof extending a predetermined distance less than the length of the pin, said pin as a unitary one piece unit containing only said eccentrically disposed holes.
Claim 2
Dependent Claim
82 words
A piston for an engine including a head having ring groove means and spaced depending opposed piston pin bosses formed with transversely aligned openings, a one piece piston pin securely mounted in said openings and provided with a multiple number of eccentrically disposed holes of predetermined size, shape and number extending longitudinally of said pin, one thereof extending a predetermined distance less than the length of the pin, said pin as a unitary one piece unit containing only said eccentrically disposed holes.
Claim 3
Dependent Claim
14 words
A piston according to claim 1 wherein an even number of holes are provided.
Claim 4
Dependent Claim
14 words
A piston according to claim 1 wherein an odd number of holes are provided.
Claim 5
Dependent Claim
95 words
An aluminum alloy piston for use in an internal combustion engine, said piston including a head having laterally spaced piston pin bosses apertured to receive in fixed relation to the head and bosses a one piece piston pin formed with a plurality of eccentrically disposed holes extending selected distances in the length thereof, said pin comprising a unitary one piece unit and being of predetermined diameter, said holes being arranged one above another and with at least one thereof extending less than the length of the pin, said pin containing only said eccentrically disposed holes.
Claim 6
Dependent Claim
95 words
An aluminum alloy piston for use in an internal combustion engine, said piston including a head having laterally spaced piston pin bosses apertured to receive in fixed relation to the head and bosses a one piece piston pin formed with a plurality of eccentrically disposed holes extending selected distances in the length thereof, said pin comprising a unitary one piece unit and being of predetermined diameter, said holes being arranged one above another and with at least one thereof extending less than the length of the pin, said pin containing only said eccentrically disposed holes.
Claim 7
Dependent Claim
69 words
A piston for an internal combustion engine having a head and laterally spaced depending pin bosses formed with transversely aligned openings, a one piece piston pin secured in said openings to said bosses, said pin being formed with a plurality of holes all eccentrically disposed, said holes being noncircular and certain thereof extending less than the length of the pin, said pin containing only holes that are eccentrically disposed.
Claim 8
Dependent Claim
69 words
A piston for an internal combustion engine having a head and laterally spaced depending pin bosses formed with transversely aligned openings, a one piece piston pin secured in said openings to said bosses, said pin being formed with a plurality of holes all eccentrically disposed, said holes being noncircular and certain thereof extending less than the length of the pin, said pin containing only holes that are eccentrically disposed.
Claim 9
Dependent Claim
73 words
A piston for an engine having a head and laterally spaced depending pin bosses formed with transversely aligned openings, a one piece piston pin securely mounted in said openings and formed with a plurality of eccentrically disposed holes extending in the length thereof and spaced predetermined distances apart, at least one of said holes is foreshortened to extend less than the length of the pin, said pin containing only said eccentrically disposed holes.
Claim 10
Dependent Claim
73 words
A piston for an engine having a head and laterally spaced depending pin bosses formed with transversely aligned openings, a one piece piston pin securely mounted in said openings and formed with a plurality of eccentrically disposed holes extending in the length thereof and spaced predetermined distances apart, at least one of said holes is foreshortened to extend less than the length of the pin, said pin containing only said eccentrically disposed holes.
References Cited (Backward Citations)
DE808300C
Cited
US1477622A
Cited
US1936158A
Cited
US1922707A
Cited
US1961789A
Cited
DE718722C
Cited
US2418245A
Cited
US2687931A
Cited
US2851319A
Cited
GB813597A
Cited
US3292244A
Cited
US3479929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |