Sleeve for concrete slab penetration

A sleeve system comprising:

• an attachment flange configured to be attached to a concrete form around an opening in the concrete form;
• and
• a sleeve body having a bottom end that is attached to the attachment flange and a top end opposite the bottom end, the sleeve body defining a tapered shape along at least a portion of its length such that the top end is wider than the bottom end, wherein:
• the sleeve body is configured to:
• extend through the opening in the concrete form;
• and
• form a tapered channel that is aligned with the opening in a first concrete mixture poured into the concrete form, the tapered channel defining:
• a bottom region adjacent to the opening;
• and
• a top region opposite the bottom region and wider than the bottom region;
• and
• the sleeve system further comprises a tapered plug dimensioned to be positioned in the bottom region of the tapered channel to allow a second concrete mixture to at least partially fill the tapered channel.

A sleeve system comprising:

• an attachment flange configured to be attached to a concrete form around an opening in the concrete form;
• and
• a sleeve body having a bottom end that is attached to the attachment flange and a top end opposite the bottom end, the sleeve body defining:
• a tapered shape along at least a portion of its length such that the top end is wider than the bottom end;
• and
• an opening at the top end of the sleeve body, wherein:
• the sleeve body is configured to:
• extend through the opening in the concrete form;
• and
• form a tapered channel that is aligned with the opening in a concrete mixture poured into the concrete form;
• and
• the sleeve system further comprises:
• a first extension member couplable to the sleeve body and having a first bottom end configured to be received at least partially in the opening at the top end of the sleeve body;
• and
• a second extension member couplable to the first extension member and having a second bottom end configured to be received at least partially in an opening at a top end of the first extension member.