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US 6,293,783 B1Granted
Lighter with a through-hole and reinforcing ribs
OwnerJung-Hua Leeinventor
Life of this patent
Estimating the term…
Abstract
A lighter includes a housing having a through-hole defined by an annular wall. The annular wall has a thickness smaller than that of the remaining portion of the housing. A ring is attached to the through-hole for attaching keys. The annular wall has a central bulge portion, thereby having a maximum diameter in each of two outer portions of the through-hole and a minimum diameter in a central portion of the through-hole. The maximum diameter of the through-hole is greater than a diameter of a cigarette and the minimum diameter of the through-hole is smaller than the diameter of the cigarette.
Claims7
A lighter comprising:
- a housing comprising a compartment, the compartment provided between at least two sides of the housing;
- an igniter element attached to the housing;
- at least one through-hole formed at the compartment and extending through at least two sides of the housing;
- an annular wall provided around each of the at least one through-hole, the annular wall connected to the housing and being configured to increase the structural strength and rigidity of the housing;
- and
- the annular wall has a thickness smaller than that of any other portion of the housing such that in the event that the lighter explodes, explosive debris is directed toward the at least one through-hole, away from the user of the lighter.
3 more elements
A lighter comprising:
- a housing comprising a plurality of compartments, each of the compartments provided between at least two sides of the housing;
- an igniter element attached to the housing;
- a plurality of through-holes formed between the compartments and extending through at least two other sides of the housing;
- a plurality of annular walls, a one of the annular walls provided around each of the through-holes, the annular walls connected to each other and to the housing and configured to increase the structural strength and rigidity of the housing;
- and
- at least one reinforcing rib for connecting the annular walls of the through-holes.
3 more elements
Dependencies are inferred from the claim text.