Outliner hair trimmer with enhanced water resistant seals
AssigneeWahl Clipper Corporation
InventorSteven Wayne Arndt
Life of this patent
Estimating the term…
Abstract
A hair trimmer includes a trimmer housing having a drive end, a drive shaft projecting from the drive end, a chassis having one end associated with the drive shaft and an opposite end having at least one projecting charging pin, a radial flange at each of the ends, an endcap at each of the ends, each endcap having an axially extending annular skirt, the annular skirt dimensioned to enclose the corresponding chassis end, and a tubular sleeve of heat deformable plastic film dimensioned for slidingly surrounding the chassis and extending axially at least to the flanges, such that upon application of heat, the sleeve deforms around the chassis and the endcaps and forms a watertight enclosure.
Claims9
A hair trimmer, comprising:
- a trimmer housing having a drive end;
- a drive shaft projecting from said drive end;
- a chassis having one end associated with said drive shaft and an opposite end having at least one projecting charging pin;
- a radial flange at each of said ends;
- a tubular sleeve of heat deformable plastic film dimensioned for slidingly surrounding said chassis and extending axially at least to said radial flanges, such that upon application of heat, said tubular sleeve deforms around said chassis and forms a watertight enclosure;
- and
- a pair of endcaps, each endcap of said pair of endcaps placed, prior to installation of said tubular sleeve, at a corresponding end of said chassis and each endcap of said pair of endcaps including an annular skirt projecting axially along said chassis so that said annular skirts extend towards each other to form a bonding point for said tubular sleeve, wherein each endcap of said pair of endcaps includes an interior space bounded by the annular skirt within which the radial flange at each of said ends of said chassis is received, respectively.
A hair trimmer, comprising:
- a trimmer housing having a drive end;
- a drive shaft projecting from said drive end;
- a chassis having one end associated with said drive shaft and an opposite end having at least one projecting charging pin;
- a radial flange at each of said ends;
- an endcap at each of said ends, the endcap at the drive end having a distinct construction from the end cap at said opposite end, each said endcap having an end wall from which axially extends an annular skirt, said annular skirt dimensioned to enclose said corresponding chassis end, said annular skirts at each of said ends extend towards each other, wherein each endcap of said pair of endcaps includes an interior space bounded by the annular skirt within which the radial flange at each of said ends of said chassis is received, respectively;
- and
- a tubular sleeve of heat deformable plastic film dimensioned for slidingly surrounding said chassis and extending axially at least to said radial flanges, such that upon application of heat, said tubular sleeve deforms around said chassis and said annular skirt of endcaps and forms a watertight enclosure.
An encased drive module, comprising:
- a chassis having one end associated with a drive shaft and an opposite end having at least one projecting charging pin;
- a radial flange at each of said ends;
- an endcap of resilient material enclosing each said end of said chassis each said endcap having an end wall from which axially extends an annular skirt, said annular skirt dimensioned to enclose said corresponding chassis end, said annular skirts at each of said ends extend towards each other, wherein each endcap of said pair of endcaps includes an interior space bounded by the annular skirt within which the radial flange at each of said ends of said chassis is received, respectively;
- at said drive shaft end, said endcap is provided with an opening accommodating said drive shaft and a drive shaft seal;
- and
- a tubular sleeve of heat deformable plastic shrink wrap film dimensioned for slidingly surrounding said chassis and said endcaps and extending axially at least to said radial flanges, such that upon application of heat, said tubular sleeve deforms and shrinks around said chassis and said endcaps and forms a watertight enclosure.
Dependencies are inferred from the claim text.