Key holder with swivel cartridge

An apparatus for holding keys, said apparatus comprising:

• a front cover including, at least, a front appendage defining a front transverse passageway;
• a back cover including, at least, a back appendage defining a back transverse passageway;
• and
• a hinge pin means located at least partially within said front and back passageways for functioning as a hinge pin with respect to said front and back covers, said hinge pin means including, at least,
• a key attachment means located at least partially outside said front and back transverse passageways for receiving keys outside said front and back transverse passageways.

An apparatus for holding keys, said apparatus comprising:

• a front cover including, at least, a front appendage defining a front transverse passageway;
• a back cover including, at least, a back appendage defining a back transverse passageway;
• and
• a hinge pin means located at least partially within said front and back passageways for functioning as a hinge pin with respect to said front and back covers, said hinge pin means including, at least,
• a hollow cylindrical casing defining a first end and a second end,
• a key attachment means located at least partially outside said front and back transverse passageways for receiving keys outside said front and back transverse passageways, said key attachment means including, at least,
• a swivel member located at least partially within said casing so as to be capable of rotation with respect to said casing and extending out through said first end of said casing, said swivel member including, at least, a recess accessible from inside said casing,
• a key ring connected to said swivel member, and
• a retractable hook member contacting said swivel member inside said casing and extending out through said second end of said casing, said hook member including, at least, a knob protruding toward said first end of said casing into said recess of said swivel member, and
• a biasing means for biasing said hook member toward said first end of said casing to abut against said swivel member.

An apparatus for attachment to external objects, including keys, said apparatus comprising:

• a first body member including, at least, an appendage defining a transverse passageway;
• and
• a swivel cartridge assembly located at least partially within said transverse passageway and including, at least,
• a hollow cylindrical casing defining a first end and a second end,
• a first attachment means for attaching an external object to said apparatus, said first attachment means being located at least partially within said casing and extending out through said first end of said casing, and
• a second attachment means for attaching an external object to said apparatus, said second attachment means being located at least partially within said casing and extending out through said second end of said casing.