Strain relief boot for an optical connector plug

An optical connector plug comprising:

• (a) a ferrule adapted to be connected to an end portion of an optical fiber conductor of an optical fiber cable;
• (b) a plug body for surrounding and supporting said ferrule;
• (c) stop means inserted in an end of said plug body for preventing said ferrule from coming off said plug body;
• (d) cable retention means engaged in said stop means for retaining said optical fiber cable;
• and
• (e) a strain relief boot connected to said cable retention means for protecting said optical fiber cable,
• said strain relief boot including:
• a first tubular member of an elastomeric material to be connected to said cable retention means, said first member adapted to surround a portion of said optical fiber cable adjacent to said cable retention means;
• and
• a second tubular member of another elastomeric material connected coaxially with said first member, said second member adapted to surround another portion of said optical fiber cable which is continuous to said portion of said optical fiber cable, a hardness of the elastomeric material of said second member being lower than that of the elastomeric material of said first member.

A strain relief boot for an optical connector plug, comprising:

• a first tubular member of an elastomeric material adapted to be connected to an end portion of said optical connector plug, said first member adapted to surround a portion of an optical fiber cable connected to said optical connector plug, said portion being adjacent to said end portion of said optical connector plug;
• and
• a second tubular member of another elastomeric material connected coaxially with said first member, said second member adapted to surround another portion of said optical fiber cable which is continuous to said portion of said optical fiber cable, a hardness of the elastomeric material of said second member being lower than that of the elastomeric material of said first member,
• the elastomeric material of said first member being Nylon 6.6 having a Rockwell hardness of about 85 (ASTM D785, R scale), and the elastomeric material of said second member being thermoplastic polyurethane having a Rockwell hardness of about 45 (ASTM D785, R scale).