US4359913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston pin assembly
Assignee: Amsted Industries Inc
•
Filing: 1978-06-22
•
Granted: 1982-11-23
•
Expires: 1998-06-22
Abstract
Abstract An improved piston pin assembly which includes a hollow tubular piston pin and one or more supports positioned within the hollow space formed by the piston pin so as to inhibit deflection of the piston pin when the assembly is subjected to load conditions.
Inventors
- 👤 David J. Mahlke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:20
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F16J1/16; F05; F05C; F05C2201/00; F05C2201/04; F05C2201/0433; F05C2201/0448; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
In a piston pin assembly particularly adapted for joining a connecting rod to a pistonhead having high performance characteristics, and improvement therein comprising, a body having an elongated cylindrical-shaped outer surface and a hollow inner space defined by a cylindrical-shaped center section of a selective length joined on each side by contiguous cylindrical-shaped intermediate sections having a diameter greater than said center section to provide stops at the juncture of said sections, said hollow inner space further being defined by cylindrical-shaped outer sections contiguous with the outer ends of each said intermediate sections, each said outer sections having a diameter greater than said intermediate sections to provide a body having a maximum deflection resistant-weight ratio, said outer and center sections being hollow, and solid cylindrical-shaped inserts tightly positioned in said intermediate section in contact with said stops to minimize deflection of said pin body upon loads being transferred between said connecting rod and said pistonhead.
Claim 2
Dependent Claim
155 words
In a piston pin assembly particularly adapted for joining a connecting rod to a pistonhead having high performance characteristics, and improvement therein comprising, a body having an elongated cylindrical-shaped outer surface and a hollow inner space defined by a cylindrical-shaped center section of a selective length joined on each side by contiguous cylindrical-shaped intermediate sections having a diameter greater than said center section to provide stops at the juncture of said sections, said hollow inner space further being defined by cylindrical-shaped outer sections contiguous with the outer ends of each said intermediate sections, each said outer sections having a diameter greater than said intermediate sections to provide a body having a maximum deflection resistant-weight ratio, said outer and center sections being hollow, and solid cylindrical-shaped inserts tightly positioned in said intermediate section in contact with said stops to minimize deflection of said pin body upon loads being transferred between said connecting rod and said pistonhead.
References Cited (Backward Citations)
CA553811A
Cited
DE601520C
Cited
US1157130A
Cited
US1268282A
Cited
US1435528A
Cited
US1365867A
Cited
US1438132A
Cited
US1887964A
Cited
US1859360A
Cited
GB401154A
Cited
US2065509A
Cited
GB528930A
Cited
US2260240A
Cited
US2251714A
Cited
US2295199A
Cited
US2648122A
Cited
US2851319A
Cited
US2797135A
Cited
US3161125A
Cited
US3702092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |