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US 3,968,849 AGranted
Lightweight portable scale
OwnerJohn D. Dale, David G. Knotterinventors
Life of this patent
Estimating the term…
Abstract
A lightweight portable pocket size scale, the balancing mechanism of which may be folded and contained in the bottom portion of a two piece case when not in use and which may accurately weigh small quantities of substances when the cover portion of the case is removed and the balancing mechanism is unfolded from its storage position in the bottom portion of the case.
Claims7
A lightweight miniaturized portable scale comprising:
- a carrying case comprising a base portion and a cover portion,
- a pair of shaft support members spacedly mounted within said base portion and arranged to extend laterally of the longitudinal axis of said base portion each adjacent a different side thereof,
- a collapsible weighing mechanism comprising a yoke portion having a pair of spaced arms, a scale portion and a shaft,
- said shaft being non-rotatively attached to said yoke portion with each end fulcrumed on a different one of said support members,
- said scale portion being pivotally mounted on said shaft and comprising interference means for engaging said yoke portion and for transmitting given rotative movement of said yoke portion to said scale portion,
- a scale having indicia thereon mounted on said scale portion along its length,
- a slide member slidably mounted on said scale portion, and
- a cup fulcrumed between said arms of said yoke portion for holding the substance to be weighed.
5 more elements
Dependencies are inferred from the claim text.