Undulating springs of thermoplastic material - for use in tension or compression esp. for springs for spectacle side arms
Номер патента: FR2285229A1
Опубликовано: 16-04-1976
Автор(ы):
Принадлежит: MAZZUCCHELLI CELLULOIDE SpA
Опубликовано: 16-04-1976
Автор(ы):
Принадлежит: MAZZUCCHELLI CELLULOIDE SpA
Реферат: Springs comprise an elongated body involving at least two successive elbows or undulations, and made of thermoplastic material. Used for mfr. of springs to be used in tension or compression, esp. as springs operating in compression to press the side-arms of spectacles gently against the wearer's head. A combination of a spring element and end fittings or couplings may be made in one pice from material which is lightweight and non-corrodible. Suitable for mass prodn. of modestly prices sunglasses etc. Spring may be (injection-) moulded directly to shape or machined from solid bar profiles, viz by cutting parallel grooves in staggered planes along opposite faces of a bar and then cutting segments from the end of the bar.
Adiabatic secondary optics for solar concentrators used in concentrated photovoltaic systems
Номер патента: US09813017B2. Автор: Marc Levesque,Raymond Gilbert,Artashes YAVRIAN,Steeve TREMBLAY. Владелец: OPSUN TECHNOLOGIES Inc. Дата публикации: 2017-11-07.