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US 4,729,291 AGranted
Gas compressor
AssigneeIngersoll-Rand Company
InventorBernard F. Miller
Life of this patent
Estimating the term…
Abstract
The Compressor is small, compact and lightweight in that it is formed of the barest essentials. It has a pair of in-line cylinders, with pistons reciprocatable therein, and the crankshaft, having only one crank, is drivingly coupled to one of the pistons. The other piston is fastened to the crank-driven piston, in spaced-apart disposition, for a common reciprocation of the two. One of the cylinders serves as the crankcase.
Claims4
A gas compressor, comprising:
- a pair of opposed, in-line cylinders opening onto each other in an unobstructed confronting relationship;
- a pair of opposed, in-line pistons disposed in said cylinders for reciprocation;
- a crankshaft having a single crank formed therealong;
- a connecting rod directly interconnecting said crank and one of said pistons;
- and
- means fastening said pistons together into a unitized assembly, albeit with said pistons in spaced-apart disposition, for reciprocation of said assembly;
- wherein
- said fastening means comprises four, identical rods;
- each of said pistons has a head and a base, and at said base thereof, a radially extending flange or skirt;
- said rods are in penetration of, and fastened to, said piston flanges or skirts to define, between said pistons, an open framework of said rods;
- said crank is centralized within said framework;
- said crankshaft traverses said framework;
- and
- said rods comprise means for strengthening and stiffening said assembly.
11 more elements
Dependencies are inferred from the claim text.