Cap Type Patents (Class 215/316)
- With means to prevent unintentional rotation in closure releasing direction (Class 215/330)
- Projection engages keeper to stop rotation in closure applying direction (Class 215/331)
- Keeper has vertically and horizontally extending slots (e.g., bayonet) (Class 215/332)
- Keeper formed by bend in bead encircling lower edge of cap skirt (Class 215/333)
- Keeper formed only on inner wall of double-wall cap or consists of separate member on cap (Class 215/334)
- Keeper consists of separate member on receptacle (Class 215/335)
- Keeper consists of tab or strip struck from cap skirt (Class 215/336)
- Cap skirt impressed with circumferential inclined keeper indent, or with circumferentially spaced keeper indents (Class 215/337)
- Keeper shaved from inner surface of cap skirt (Class 215/338)
- Keeper formed by inward facing beads spaced along lower edge of cap skirt (Class 215/339)
- Keeper formed by horizontal flange projecting inward from lower edge of cap skirt (Class 215/340)