Self-telescoping cartridge magazine spring
OwnerLueder Seecampinventor
Life of this patent
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Abstract
A self-telescoping cartridge magazine spring having two-sizes of coils with the smaller ones disposed at various points along the length of the spring, such that on compression they fit completely within the outer ones. The inner and outer coils are connected by straight sections within which the transition from one size to the other is made, so that they can bend laterally in order to conform to the space available without increasing the solid-height of the spring, while providing a substantially longer free-length, and therefore available compression, than that provided by magazine springs of prior designs.
Claims6
A self-telescoping cartridge magazine spring comprising a plurality of alternating curved portions and straight sections disposed about the longitudinal axis of said spring,
- said curved portions being of two different sizes with the smaller disposed axially inward of the larger and occurring at various intervals lengthwise of said spring,
- each transition from one size curved portion to the other occurring entirely within one of said straight sections.
Dependencies are inferred from the claim text.