Patent ID: 11913280
Assignee: SAFE-T-SHADE, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 1:
2. The apparatus of claim 1, wherein:
the first upper passage has a first upper end coinciding with the first upper opening and having a first lower end proximate to the central portion, the first passage having a greater width at the first upper end than at the first lower end, with each of the first upper end and the first lower end having a circular cross-sectional shape; and
the second upper passage has a second upper end coinciding with the second upper opening and having a second lower end proximate to the central portion, the second passage having a greater width at the second upper end than at the second lower end, with each of the second upper end and the second lower end having a circular cross-sectional shape.