US5219453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet binder
Assignee: Canon Inc
•
Filing: 1991-04-22
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Granted: 1993-06-15
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Expires: 2011-04-22
Abstract
Abstract A sheet binder for binding sheets by adhering the sheets to a back of a cover member by a heat-fusible adhesive. The sheet binder includes a supporting member for supporting the cover member having the back, to an inner surface of which the heat-fusible adhesive is applied, a heat generating member disposed in the proximity of the supporting member, and an alternate magnetic field generating device for generating an alternate magnetic field to heat the heat generating member.
Inventors
- 👤 Hideaki Furukawa
- 👤 Naoki Fuei
- 👤 Norio Hikake
- 👤 Kimiaki Hayakawa
- 👤 Shuichi Yabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:23
CPC Classifications
B; B42; B42C; B42C9/00; B42C9/0056; Y; Y10; Y10S; Y10S412/00; Y10S412/902
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
90 words
A sheet binder for binding sheets by adhering sheets to a back of a cover member, comprising: a supporting member for supporting the cover member having the back, to an inner surface of which heat-fusible adhesive is applied; a heat generating member for generating heat, being made of a magnetic material and disposed in said supporting member; and alternate magnetic field generating means for generating an alternate magnetic field, and for applying the magnetic field to said heat generating member to cause said heat generating member to generate the heat.
Claim 2
Dependent Claim
90 words
A sheet binder for binding sheets by adhering sheets to a back of a cover member, comprising: a supporting member for supporting the cover member having the back, to an inner surface of which heat-fusible adhesive is applied; a heat generating member for generating heat, being made of a magnetic material and disposed in said supporting member; and alternate magnetic field generating means for generating an alternate magnetic field, and for applying the magnetic field to said heat generating member to cause said heat generating member to generate the heat.
Claim 3
Dependent Claim
18 words
A sheet binder according to claim 1, wherein said alternate magnetic field generating means comprises an induction coil.
Claim 4
Dependent Claim
45 words
A sheet binder according to claim 1, wherein an excitation frequency of the magnetic field generated by said alternate magnetic field generating means is set to have a value between one of 15 and 19 KHz, 30 and 38 KHz, and 45 and 57 KHz.
Claim 5
Dependent Claim
136 words
A sheet binder for binding sheets by adhering sheets to a back of a cover member, comprising: a supporting member for supporting the cover member having the back, to an inner surface of which heat-fusible adhesive is applied; thickness signal generating means for generating a signal indicative of thickness of the cover member supported by said supporting member; a heat generating member for generating heat, being made of a magnetic material and disposed in said supporting member; alternate magnetic field generating means for generating an alternate magnetic field, and for applying the magnetic field to said heat generating member to cause said heat generating member to generate the heat; and control means for controlling an operation of said alternate magnetic field generating means on the basis of the signal generated by said thickness signal generating means.
Claim 6
Dependent Claim
136 words
A sheet binder for binding sheets by adhering sheets to a back of a cover member, comprising: a supporting member for supporting the cover member having the back, to an inner surface of which heat-fusible adhesive is applied; thickness signal generating means for generating a signal indicative of thickness of the cover member supported by said supporting member; a heat generating member for generating heat, being made of a magnetic material and disposed in said supporting member; alternate magnetic field generating means for generating an alternate magnetic field, and for applying the magnetic field to said heat generating member to cause said heat generating member to generate the heat; and control means for controlling an operation of said alternate magnetic field generating means on the basis of the signal generated by said thickness signal generating means.
Claim 7
Dependent Claim
36 words
A sheet binder according to claim 4, wherein said supporting member comprises a pair of guide members movable toward and away from each other, and said cover member is pinched and held by said guide members.
Claim 8
Dependent Claim
47 words
A sheet binder according to claim 5, wherein said thickness signal generating means comprises a variable resistor associated with the movement of said pair of guide members, and the thickness of said cover member is detected on the basis of a resistance value of said variable resistor.
Claim 9
Dependent Claim
29 words
A sheet binder according to claim 4, wherein said control means sets an operating time of said alternate magnetic field generating means longer, as said cover member becomes thicker.
Claim 10
Dependent Claim
98 words
A sheet binder for binding sheets by adhering sheets to a back of a cover member, comprising: a supporting member for supporting the cover member having the back, to an inner surface of which heat-fusible adhesive is applied; a heat generating member for generating heat being made of a magnetic material and being applied to the inner surface of the back of the cover member; and alternate magnetic field generating means for generating an alternate magnetic field, and for applying the magnetic field to said heat generating member to cause said heat generating member to generate the heat.
Claim 11
Dependent Claim
98 words
A sheet binder for binding sheets by adhering sheets to a back of a cover member, comprising: a supporting member for supporting the cover member having the back, to an inner surface of which heat-fusible adhesive is applied; a heat generating member for generating heat being made of a magnetic material and being applied to the inner surface of the back of the cover member; and alternate magnetic field generating means for generating an alternate magnetic field, and for applying the magnetic field to said heat generating member to cause said heat generating member to generate the heat.
Claim 12
Dependent Claim
17 words
A sheet binder according to claim 8, wherein said heat generating member has a flat plate configuration.
Claim 13
Dependent Claim
18 words
A sheet binder according to claim 8, wherein said alternate magnetic field generating means comprises an induction coil.
Claim 14
Dependent Claim
26 words
A sheet binder according to claim 10, further comprising a plurality of said induction coils, which are disposed along the length of said heat generating member.
Claim 15
Dependent Claim
64 words
A cover assembly comprising: a cover member for pinching a bundle of sheets; a heat-fusible adhesive provided on said cover member for adhering one side of the bundle of sheets to a back of said cover member; and a heat generating member being made of magnetic material and provided on said cover member for fusing said heat-fusible adhesive upon receiving an external alternate field.
Claim 16
Dependent Claim
64 words
A cover assembly comprising: a cover member for pinching a bundle of sheets; a heat-fusible adhesive provided on said cover member for adhering one side of the bundle of sheets to a back of said cover member; and a heat generating member being made of magnetic material and provided on said cover member for fusing said heat-fusible adhesive upon receiving an external alternate field.
Claim 17
Dependent Claim
31 words
A cover assembly according to claim 12, wherein said heat-fusible, adhesive and said heat generating member are one of integrally fixed to the back of said cover member and independently provided.
Claim 18
Dependent Claim
16 words
A cover assembly according to claim 12, wherein said heat generating member has a plate configuration.
Claim 19
Dependent Claim
40 words
A cover assembly according to claim 14, wherein said heat generating member has a plurality of openings formed therein and is independently formed from the back of said cover member and is disposed between said back and said heat-fusible adhesive.
Claim 20
Dependent Claim
24 words
A cover assembly according to claim 14, wherein said heat generating member has a laid U-shaped configuration having bent portions on both sides thereof.
Claim 21
Dependent Claim
79 words
A cover assembly comprising: a cover member for pinching a bundle of sheets; a heat-fusible adhesive provided on said cover member for adhering one side of the bundle of sheets to a back of said cover member; a heat generating member being made of magnetic material and being provided on said cover member for fusing said heat-fusible adhesive upon receiving an external alternate field; and a good heat-conductive member disposed between said heat-fusible adhesive and said heat generating member.
Claim 22
Dependent Claim
79 words
A cover assembly comprising: a cover member for pinching a bundle of sheets; a heat-fusible adhesive provided on said cover member for adhering one side of the bundle of sheets to a back of said cover member; a heat generating member being made of magnetic material and being provided on said cover member for fusing said heat-fusible adhesive upon receiving an external alternate field; and a good heat-conductive member disposed between said heat-fusible adhesive and said heat generating member.
Claim 23
Dependent Claim
44 words
A cover assembly according to claim 17, wherein said heat generating member and said good heat-conductive member have plate-shaped configurations, and said heat generating member, said good heat-conductive member and said heat-fusible adhesive are laminated in order from the back of said cover member.
Claim 24
Dependent Claim
136 words
A sheet binder for binding sheets by adhering sheets to a back of a cover member, comprising: a supporting member for supporting the cover member having the back, to an inner surface of which heat-fusible adhesive is applied; a heat generating member, made of a magnetic material, being applied to the inner surface of the back of the cover member; thickness signal generating means for generating a signal indicative of thickness of the cover member supported by said supporting member; alternate magnetic field generating means for generating an alternate magnetic field, and for applying the magnetic field to said heat generating member to cause said heat generating member to generate the heat; and control means for controlling said alternate magnetic field generating means on the basis of the signal generated by said thickness signal generating means.
Claim 25
Dependent Claim
136 words
A sheet binder for binding sheets by adhering sheets to a back of a cover member, comprising: a supporting member for supporting the cover member having the back, to an inner surface of which heat-fusible adhesive is applied; a heat generating member, made of a magnetic material, being applied to the inner surface of the back of the cover member; thickness signal generating means for generating a signal indicative of thickness of the cover member supported by said supporting member; alternate magnetic field generating means for generating an alternate magnetic field, and for applying the magnetic field to said heat generating member to cause said heat generating member to generate the heat; and control means for controlling said alternate magnetic field generating means on the basis of the signal generated by said thickness signal generating means.
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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) | 1996-06-14 | 1996-12-14 | 1997-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-14 | 2000-12-14 | 2001-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-14 | 2004-12-14 | 2005-06-15 | $7700.00 | Window Closed / Lapsed |