Chalk line apparatus with a spool configured to avoid cavitation
AssigneeKeson Industries, Inc.
InventorsMark Nepil, Clyde Torp
Life of this patent
Estimating the term…
Abstract
A chalk line apparatus having a housing defining a chamber within which a supply of chalk can be stored and a reel within the chamber and mounted for rotation relative to the housing around a first axis. The housing has an opening through which a flexible line emanating from the reel can extend to outwardly of the housing for use. The reel has a spool defining a support against and around which a flexible line can be wrapped. The spool is rotatable around the first axis and has an axial extent. The spool is configured so that line wrapped around the support does not have a substantially cylindrical shape centered on the first axis over any substantial portion of the axial extent of the spool.
Claims22
A chalk line apparatus comprising:
- a housing defining a chamber within which a supply of chalk can be stored;
- and
- a reel within the chamber and mounted for rotation relative to the housing around a first axis,
- the housing having an opening through which a flexible line emanating from the reel can extend to outwardly of the housing for use,
- the reel comprising a spool defining a support against and around which a flexible line can be wrapped,
- the spool rotatable around the first axis and having an axial extent,
- the spool configured so that line wrapped around the support does not have a substantially cylindrical shape centered on the first axis over any substantial portion of the axial extent of the spool.
A chalk line apparatus comprising:
- a housing defining a chamber within which a supply of chalk can be stored;
- and
- a reel within the chamber and mounted for rotation relative to the housing around a first axis,
- the housing having an opening through which a flexible line emanating from the reel can extend to outwardly of the housing for use,
- the reel comprising a spool defining a support against and around which a flexible line can be wrapped,
- the spool rotatable around the first axis and having an axial extent,
- the support configured so that the support does not engage an accumulation of line wrapped around the support substantially continuously in a circular region centered on the first axis over any substantial portion of the axial extent of the spool.
A chalk line apparatus comprising:
- a housing defining a chamber within which a supply of chalk can be stored;
- and
- a reel within the chamber and mounted for rotation relative to the housing around a first axis,
- the housing having an opening through which a flexible line emanating from the reel can extend to outwardly of the housing for use,
- the reel comprising a spool defining a support against and around which a flexible line can be wrapped,
- the support comprising first and second discrete parts against which a flexible line wrapped against and around the support bears.
Dependencies are inferred from the claim text.