Inventor

PORTER MICHAEL R

US21 patents

⚠️ This page may combine multiple inventors who share the name “PORTER MICHAEL R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PORTER MICHAEL R

PORTER SEWING MACHINES INC

Method and apparatus for assembly of pillow-top mattress covers

Method and apparatus for manipulating and sewing flexible fabrics

Apparatus for assembly of pillow-top mattress covers

Method and apparatus for manipulating and sewing flexible fabrics

High lift sewing machine

Method and apparatus for sewing fabric panels

Method and apparatus for sewing handles on side panels on a box spring

Method and apparatus for join and sew application

Apparatus for assembly of pillow-top mattress covers

Variable walking foot apparatus for a sewing machine for mattresses

Method and apparatus for forming the side panel of a mattress sack

Method and apparatus for closing mattresses

Automatic pocket label stitcher

Method and apparatus for aligning a fabric ply in a sewing machine

Double overlock seamer

Method and apparatus for join and sew application

Method and apparatus for preloading material to be sewn into a sewing machine and for compensating for uneven lengths of such materials

TRI TOOL INC

Method of welding

Configurable dual process welding head and method

PORTER INTERNAT

Method and apparatus for sewing handles on a strip of material

PORTER MICHAEL R

Tube-welding auxiliary