Patent US4432827A successfully refreshed from Google Patents.
US4432827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making cassette holders
Assignee: Blair Industries Inc
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Filing: 1983-04-29
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Granted: 1984-02-21
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Expires: 2003-04-29
Abstract
Abstract A book simulating holder or album for cassettes and the like has a cover with front and rear flaps connected by a wide flexible spine with complementary interfitting trays on the inner faces of the flaps and, if desired, a pocket forming strip overlying the cover secured to the bottom and side edges thereof. The trays are formed from a single sheet of plastics material and a portion of this sheet between the trays overlies the spine of the cover. The plastics sheet is vacuum molded to the desired tray contours. Stiffeners such as cardboard are sandwiched between the bottoms of the trays and the flaps of the cover to rigidify the structure. The cover is also a single sheet of plastics material bonded around its marginal edges to the molded tray sheet and the pocket forming strip is simultaneously bonded to the cover.
Inventors
- 👤 Herbert Graetz
- 👤 Ronald C. Unterreiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:12
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/023; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
122 words
The method of making a book-style album which comprises thermal forming a thermoplastic sheet to define a plurality of pairs of trays and lids in side-by-side relation connected by flexible spines, covering the bottoms of the trays and lids with rigid slabs, covering the slab-receiving side of the thermoplastic sheet with a second thermoplastic sheet, crimping and bonding the sheets together around the margins thereof, providing tear margins around the crimped bond to facilitate severing of the bonded sheets, and severing the bonded sheets along the tear margins to provide a plurality of book-type holders each with rigid flaps, a tray on one flap, a lid on the other flap, and a flexible spine and spine liner connecting the tray and lid.
Claim 2
Independent Claim
122 words
The method of making a book-style album which comprises thermal forming a thermoplastic sheet to define a plurality of pairs of trays and lids in side-by-side relation connected by flexible spines, covering the bottoms of the trays and lids with rigid slabs, covering the slab-receiving side of the thermoplastic sheet with a second thermoplastic sheet, crimping and bonding the sheets together around the margins thereof, providing tear margins around the crimped bond to facilitate severing of the bonded sheets, and severing the bonded sheets along the tear margins to provide a plurality of book-type holders each with rigid flaps, a tray on one flap, a lid on the other flap, and a flexible spine and spine liner connecting the tray and lid.
Claim 3
Independent Claim
144 words
The method of making a book-style album which comprises unwinding a thermoplastic sheet from a roll, heating the sheet, thermal forming the sheet to define a plurality of pairs of trays and lids in side-by-side relation connected by flexible spines, severing the sheet from the roll, depositing the thermal formed severed sheet in the pocket of a receiving station with the bottoms of the trays and lids facing upward, covering said bottoms of the trays and lids with rigid slabs, covering the slab-receiving side of the thermal formed sheet in said pocket with a second thermoplastic sheet, bonding the sheets together around the margins thereof, and severing the bonded sheets to provide a plurality of book-type holders each with rigid flaps, a tray on one flap, a lid on the other flap, and a flexible spine and spine liner connecting the tray and lid.
Claim 4
Independent Claim
144 words
The method of making a book-style album which comprises unwinding a thermoplastic sheet from a roll, heating the sheet, thermal forming the sheet to define a plurality of pairs of trays and lids in side-by-side relation connected by flexible spines, severing the sheet from the roll, depositing the thermal formed severed sheet in the pocket of a receiving station with the bottoms of the trays and lids facing upward, covering said bottoms of the trays and lids with rigid slabs, covering the slab-receiving side of the thermal formed sheet in said pocket with a second thermoplastic sheet, bonding the sheets together around the margins thereof, and severing the bonded sheets to provide a plurality of book-type holders each with rigid flaps, a tray on one flap, a lid on the other flap, and a flexible spine and spine liner connecting the tray and lid.
Claim 5
Dependent Claim
12 words
The method of claim 2 wherein the receiving station is a turntable.
Claim 6
Independent Claim
148 words
The method of making a book-style album which comprises thermal forming a rigid thermoplastic sheet to define a plurality of pairs of adjoining tray and lid portions in side-by-side relation with the tray and lid portion of each pair connected by an integral spine portion between the adjoining sides of the tray and lid portions and with a peripheral margin around each pair of tray and lid portion, covering said thermal formed rigid thermoplastic sheet with a second thermoplastic sheet overlying the bottoms of the tray, lid, spine and margin portions, bonding the sheets together around the peripheral margins of each pair of trays and lids, and severing the bonded sheets along the bonded margins to provide a plurality of book-type holders, each with cover flaps, a tray on one flap, a lid on the other flap, and a spine and spine liner connecting the tray and lid.
Claim 7
Independent Claim
148 words
The method of making a book-style album which comprises thermal forming a rigid thermoplastic sheet to define a plurality of pairs of adjoining tray and lid portions in side-by-side relation with the tray and lid portion of each pair connected by an integral spine portion between the adjoining sides of the tray and lid portions and with a peripheral margin around each pair of tray and lid portion, covering said thermal formed rigid thermoplastic sheet with a second thermoplastic sheet overlying the bottoms of the tray, lid, spine and margin portions, bonding the sheets together around the peripheral margins of each pair of trays and lids, and severing the bonded sheets along the bonded margins to provide a plurality of book-type holders, each with cover flaps, a tray on one flap, a lid on the other flap, and a spine and spine liner connecting the tray and lid.
Claim 8
Dependent Claim
64 words
In the method of claim 4, the steps of thermal forming the side-by-side tray and lid of each pair to interfit and stack together in the closed position of the album, and forming the spine and spine liner with widths greater than the combined stacked height of the interfitted tray and lid for bowing the spine and liner outwardly when the album is closed.
Claim 9
Dependent Claim
39 words
The method of claim 4 including the step of thermal forming the rigid thermoplastic sheet into a panel having a plurality of parallel rows of said pairs of trays and lids with a plurality of pairs in each row.
Claim 10
Independent Claim
128 words
The method of making a book-style album which comprises thermal forming a thermoplastic sheet to define a plurality of pairs of adjoining trays, with the trays of each pair in side-by-side relation and connected by an integral flexible spine and with the pairs of trays connected by peripheral marginal portions, covering the bottoms of the trays with rigid slabs, covering the slab-receiving face of the thermoplastic sheet with a second thermoplastic sheet, bonding the sheets together around the peripheral margin of each pair of trays, and severing the bonded sheets along the margins to separate the pairs of trays and spine and to form a plurality of book-type holders each with rigid flaps, a tray on each flap, and a flexible spine and spine liner connecting the trays.
Claim 11
Independent Claim
128 words
The method of making a book-style album which comprises thermal forming a thermoplastic sheet to define a plurality of pairs of adjoining trays, with the trays of each pair in side-by-side relation and connected by an integral flexible spine and with the pairs of trays connected by peripheral marginal portions, covering the bottoms of the trays with rigid slabs, covering the slab-receiving face of the thermoplastic sheet with a second thermoplastic sheet, bonding the sheets together around the peripheral margin of each pair of trays, and severing the bonded sheets along the margins to separate the pairs of trays and spine and to form a plurality of book-type holders each with rigid flaps, a tray on each flap, and a flexible spine and spine liner connecting the trays.
Claim 12
Dependent Claim
59 words
The method of claim 7 including the step of thermal forming the thermoplastic sheet into a panel having adjacent parallel rows of a plurality of pairs of trays and lids with the trays of one row aligned with the lids of the other row and the lids of the one row aligned with the trays of the other row.
Claim 13
Dependent Claim
19 words
The method of claim 7 wherein the second thermoplastic sheet is more pliable than the thermal formed plastic sheet.
Claim 14
Dependent Claim
31 words
The method of claim 7 including the step of thermal forming pockets in the peripheral portions of the trays sized for receiving said slabs and fitting said slabs in said pockets.
Claim 15
Dependent Claim
45 words
The method of claim 7 which comprises covering a portion of the second thermoplastic sheet with a thermoplastic film and bonding the film to the second sheet along some of the margins to form a pocket with an open side overlying the flaps and spines.
Claim 16
Independent Claim
151 words
The method of making a book style holder which comprises thermal forming a thermoplastic sheet into a shape defining a plurality of pairs of interfitting trays each with hollow upstanding peripheral walls and flat bottoms and with trays of each pair connected in side-by-side relation with a flexible spine portion therebetween and having marginal portions around the periphery thereof, covering the bottoms of said trays with rigid slabs, covering the slab-covered sheet with a second thermoplastic sheet, covering at least a portion of the second thermoplastic sheet with a third thermoplastic sheet, thermal bonding the stacked sheets around the peripheral margin of each pair of trays, and severing the bonded margins between each pair of trays to provide a plurality of book-style holders each with rigid cover flaps having trays on the inner faces connected by a flexible spine and spine liner and a pocket between the second and third sheets.
Claim 17
Independent Claim
151 words
The method of making a book style holder which comprises thermal forming a thermoplastic sheet into a shape defining a plurality of pairs of interfitting trays each with hollow upstanding peripheral walls and flat bottoms and with trays of each pair connected in side-by-side relation with a flexible spine portion therebetween and having marginal portions around the periphery thereof, covering the bottoms of said trays with rigid slabs, covering the slab-covered sheet with a second thermoplastic sheet, covering at least a portion of the second thermoplastic sheet with a third thermoplastic sheet, thermal bonding the stacked sheets around the peripheral margin of each pair of trays, and severing the bonded margins between each pair of trays to provide a plurality of book-style holders each with rigid cover flaps having trays on the inner faces connected by a flexible spine and spine liner and a pocket between the second and third sheets.
Claim 18
Dependent Claim
44 words
The method of claim 12 including the step of forming the flexible spine and spine liner portions each with widths sufficient to bow outwardly and tighten the pocket when the trays are stacked together in interfitting relation in the closed position of the holder.
Claim 19
Independent Claim
137 words
The method of making book style holders which comprises unwinding a first thermoplastic sheet from a roll, thermal forming successive increments of the sheet into panels each having upstanding hollow peripheral walls defining a plurality of pairs of inter-fitting trays with the trays of each pair connected by a flexible spine and surrounded by a marginal portion, covering the underside of the bottoms of the trays of each panel with rigid pieces of cardboard, covering the cardboard covered panel with a second thermoplastic sheet, thermal bonding the sheets together around the margins of each pair of trays and cutting the sheets along the bonded margins to form a plurality of book-style holders each with rigid cover flaps, a flexible spine and spine liner connecting the flaps, and a tray on the inside face of each cover flap.
Claim 20
Independent Claim
137 words
The method of making book style holders which comprises unwinding a first thermoplastic sheet from a roll, thermal forming successive increments of the sheet into panels each having upstanding hollow peripheral walls defining a plurality of pairs of inter-fitting trays with the trays of each pair connected by a flexible spine and surrounded by a marginal portion, covering the underside of the bottoms of the trays of each panel with rigid pieces of cardboard, covering the cardboard covered panel with a second thermoplastic sheet, thermal bonding the sheets together around the margins of each pair of trays and cutting the sheets along the bonded margins to form a plurality of book-style holders each with rigid cover flaps, a flexible spine and spine liner connecting the flaps, and a tray on the inside face of each cover flap.
Claim 21
Dependent Claim
24 words
The method of claim 14 wherein the first thermoplastic sheet is a relatively rigid polyvinyl chloride sheet and the second thermoplastic sheet is plasticized.
Claim 22
Independent Claim
136 words
The method of making a book style album which comprises thermal forming a first thermoplastic sheet to define on one face thereof a pair of raised complimentary interfitting tray portions in side-by-side relation connected by an integral flexible spine portion and surrounded by a flat margin portion, forming the width of the spine portion to be wider than the height of the interfitted tray portions, covering the opposite face of the thermal formed first sheet with a second thermoplastic sheet and bonding the second sheet to the margin portion of the first thermal formed sheet to form the album with cover flaps, a tray portion on the inner face of each flap and a flexible wide spine and spine liner portion that will bow outwardly when the album is closed to interfit the tray portions together.
Claim 23
Independent Claim
136 words
The method of making a book style album which comprises thermal forming a first thermoplastic sheet to define on one face thereof a pair of raised complimentary interfitting tray portions in side-by-side relation connected by an integral flexible spine portion and surrounded by a flat margin portion, forming the width of the spine portion to be wider than the height of the interfitted tray portions, covering the opposite face of the thermal formed first sheet with a second thermoplastic sheet and bonding the second sheet to the margin portion of the first thermal formed sheet to form the album with cover flaps, a tray portion on the inner face of each flap and a flexible wide spine and spine liner portion that will bow outwardly when the album is closed to interfit the tray portions together.
Claim 24
Dependent Claim
59 words
The method of claim 16 including the step of thermal forming the first sheet to define depressed pockets in said opposite face around the tray portions and fitting rigid slabs in said pockets to overlie the bottoms of the tray portions before covering the first sheet with the second sheet to thereby provide the album with rigid tray bottoms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |