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John Evans' Sons

1 Spring Avenue, P.O. Box 885
Lansdale, PA 19446

About John Evans' Sons

John Evans’ Sons is the international leader in design and manufacturing of constant force springs, constant force spring assemblies and pusher springs (variable force). Custom design, in-house tooling and precision manufacturing, combined with a wide & varied stock spring selection allows us to serve a wide variety of applications from military to medical, high-tech, point of purchase and retail, and aerospace.

Competitors of John Evans' Sons

PowerRail

PowerRail

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Donohue Railroad Equipment Inc

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Miner Enterprises, Inc.

Miner Enterprises, Inc.

Founded in 1894, the W.H. Miner spring draft gears filled a special need during the railroads’ transition from wooden frames and the standardization of draft gear pockets, automatic couplers and braking systems from approximately 1885 to 1919. The key patents involved in this evolutionary period... Read More