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US 5,398,422 AGranted
Miniature level device
OwnerJoseph G. Clarksoninventor
Life of this patent
Estimating the term…
Abstract
A simply-constructed miniature level device in which a small ball bearing, a visual indicator of a level condition of the device, is maintained between two races, that is, arcuate slots formed in opposing panels which are spaced-apart by opposing leg portions extending between the panels. A sleeve member disposed between the panels allows for the level to be supplied with a key-chain or key ring.
Claims7
A miniature level device comprising,
- a pair of generally rectangular and opposed panel members each having an arcuate slot that together form a pair of opposed and parallel races,
- one of said panel members having parallel extension members extending at right angles from respective ends of said one panel member for maintaining said panel members in a spaced apart relation,
- a roller means disposed between said races for rolling engagement therewith and for visually indicating a level condition of said level device when said roller means is in the nadir portion of said races, and
- receiving means connecting said panel members for receiving a key chain.
1 more element
A miniature level device comprising,
- a pair of generally rectangular and opposed panel members each having an arcuate slot that together form a pair of opposed and parallel races,
- a roller means disposed between said races for rolling engagement therewith and for visually indicating a level condition of said device when said roller means is in the nadir portion of said races,
- said panel members having connecting leg members outside the boundary of said races for maintaining said panel members in a spaced apart relation, and
- one of said leg members being hollow throughout its extent and forming a sleeve member therein for receiving a key chain.
1 more element
Dependencies are inferred from the claim text.