US3990131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping device for use in packaging
Assignee: Panasonic Holdings Corp
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Filing: 1975-05-14
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Granted: 1976-11-09
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Expires: 1995-05-14
Abstract
Abstract The invention discloses a three-piece clamping device especially adapted for clamping together an inner packing box and an outer packing box or clamping together the packing boxes. The clamping device comprises a pair of rectangular retaining members similar in construction and a retaining wedge member with a knob or wing. According to one preferred embodiment, each retaining member has a saucer-shaped flat-bottomed barrel portion formed by a drawing operation, and a flange portion extending outwardly from the periphery of the open end of the barrel portion. An elongated-hexagon-shaped slot is formed through the flat bottom of the barrel portion, a projection is extended outwardly from the outer bottom surface and a recess is formed in the outer bottom surface of the barrel portion. The retaining wedge member has a wedge-shaped portion and a wing- or knob-shaped portion joined to the shorter base of the wedge-shaped portion, the longer base of which is slightly shorter than the length of the elongated-hexagon-shaped slot. The barrel portions of the retaining members are fitted into the holes formed through the side walls of the inner and outer packing boxes in such a manner that the outer bottom surfaces of the barrel portions are made into very close contact with each other and the projections are fitted into the mating recesses. Thereafter the retaining wedge member is inserted into the slots and rotated through 90° so that the retaining members are drawn to each other, thereby clamping the inner and outer packing boxes.
Inventors
- 👤 Kouich Okamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:55
CPC Classifications
A; A44; A44B; A44B99/00; A44B99/005; B; B65; B65D; B65D55/00; B65D55/02; B65D55/10; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/38; Y10S24/41; Y10S24/51; Y10S24/53; Y10T; Y10T24/00; Y10T24/28; Y10T24/42; Y10T24/45; Y10T24/45005; Y10T24/45089; Y10T403/00; Y10T403/75
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
256 words
A three-piece shipping clamping device comprising a. a pair of retaining members similar in construction, each retaining member comprising a saucer-shaped flat-bottomed barrel portion of an elongated oval cross sectional configuration and with an elongated-hexagon-shaped slot formed through the flat bottom, said hexagon-shaped slot being elongated in the direction of the longer axis of the flat bottom of said barrel portion; and a flat flange portion extending outwardly from the periphery of the open end of said barrel portion; the barrel portions of said retaining members being fitted into the holes formed through the side walls of an outer packing box and an inner packing box to be fastened and in alingment with each other in such a way that the outer bottom surfaces of said barrel portions may be made into very close contact with each other and the flat flange portions may be pressed against the inner surface of the side wall of the inner box and the outer surface of the side wall of the outer box, respectively; and b. a retaining knob comprising a wedge-shaped portion, and a knob or wing portion connected to the shorter base of said wedge-shaped portion, the longer base of said wedge-shaped portion being shorter than the length in the elongated direction of said elongated-hexagon-shaped slot, whereby when said retaining knob is inserted into said elongated-hexagon-shaped slots of said pair of retaining members and rotated through 90° said pair of retaining members may be drawn toward each other, thereby fastening together said outer and inner packing boxes.
Claim 2
Dependent Claim
256 words
A three-piece shipping clamping device comprising a. a pair of retaining members similar in construction, each retaining member comprising a saucer-shaped flat-bottomed barrel portion of an elongated oval cross sectional configuration and with an elongated-hexagon-shaped slot formed through the flat bottom, said hexagon-shaped slot being elongated in the direction of the longer axis of the flat bottom of said barrel portion; and a flat flange portion extending outwardly from the periphery of the open end of said barrel portion; the barrel portions of said retaining members being fitted into the holes formed through the side walls of an outer packing box and an inner packing box to be fastened and in alingment with each other in such a way that the outer bottom surfaces of said barrel portions may be made into very close contact with each other and the flat flange portions may be pressed against the inner surface of the side wall of the inner box and the outer surface of the side wall of the outer box, respectively; and b. a retaining knob comprising a wedge-shaped portion, and a knob or wing portion connected to the shorter base of said wedge-shaped portion, the longer base of said wedge-shaped portion being shorter than the length in the elongated direction of said elongated-hexagon-shaped slot, whereby when said retaining knob is inserted into said elongated-hexagon-shaped slots of said pair of retaining members and rotated through 90° said pair of retaining members may be drawn toward each other, thereby fastening together said outer and inner packing boxes.
Claim 3
Dependent Claim
59 words
A three-piece shipping clamping device as set forth in claim 1 wherein said flange portion is formed integral with said barrel portion; said substantially hexagon-shaped slot is formed by punching; and a projection and a recess are formed on the outer bottom surface of said retaining member for engagement with the recess and projection of the other retaining member.
Claim 4
Dependent Claim
31 words
A three-piece shipping clamping device as set forth in claim 1 wherein said wedge portion of said retaining knob is formed integral with said knob or wing portion thereof by punching.
Claim 5
Dependent Claim
26 words
A three-piece shipping clamping device as set forth in claim 1 wherein said barrel portion of said retaining member is in the form of an oval.
Claim 6
Dependent Claim
52 words
A three-piece shipping clamping device as set forth in claim 1 wherein a plurality of pawls for engagement with the side wall of a packing box are formed on the surface of said flange portion of said retaining member which is to be pressed against the side wall of the packing box.
Claim 7
Dependent Claim
54 words
A three-piece shipping clamping device as set forth in claim 1 wherein two pairs of stop projections are extended from the inner bottom surface of said barrel portion on the sides of the vertexes at the shortest diagonal of said elongated hexagon-shaped slot each pair being symmetrical about the extension of said shortest diagonal.
Claim 8
Dependent Claim
34 words
A three-piece shipping clamping device as set forth in claim 1 wherein recesses for engagement with said retaining knob are formed at the vertexes interconnected by the shortest diagonal of said elongaged hexagon-shaped slot.
Claim 9
Dependent Claim
35 words
A three-piece shipping clamping device as set forth in claim 2 wherein the periphery of said elongated hexagon-shaped slot is curved to form the peripheral ridge extended toward the open end of said barrel portion.
Claim 10
Dependent Claim
28 words
A three-piece shipping clamping device as set forth in claim 2 wherein instead of said recess, a through hole is formed through the bottom of said barrel portion.
Claim 11
Dependent Claim
34 words
A three-piece shipping clamping device as set forth in claim 2 wherein said projection comprises a rivet; and instead of said recess, a through hole is formed through the bottom of said barrel portion.
Claim 12
Dependent Claim
166 words
A three-piece shipping clamping device comprising a. a pair of retaining members substantially similar in construction, each retaining member comprising a saucer-shaped flat-bottomed barrel portion, a flange portion extended outwardly from the periphery of the open end of said barrel portion, there being an elongated slot formed through the flat bottom of said barrel portion, a projection extended outwardly from the outer bottom surface of said barrel portion, and a recess formed in the outer bottom surface of said barrel portion, and a peripheral ridge formed along the periphery of said elongaged slot; and b. a retaining knob having a wedge-shaped portion, and a knob or wing portion joined to the shorter base of said wedge-shaped portion, the longer base of said wedge-shaped portion being shorter than the length of said elongated slot, the corners of said retaining knob where the sides of said wedge-shaped portion are joined to said knob or wing portion being undercut for engagement with said peripheral ridge of said elongated slot.
Claim 13
Dependent Claim
166 words
A three-piece shipping clamping device comprising a. a pair of retaining members substantially similar in construction, each retaining member comprising a saucer-shaped flat-bottomed barrel portion, a flange portion extended outwardly from the periphery of the open end of said barrel portion, there being an elongated slot formed through the flat bottom of said barrel portion, a projection extended outwardly from the outer bottom surface of said barrel portion, and a recess formed in the outer bottom surface of said barrel portion, and a peripheral ridge formed along the periphery of said elongaged slot; and b. a retaining knob having a wedge-shaped portion, and a knob or wing portion joined to the shorter base of said wedge-shaped portion, the longer base of said wedge-shaped portion being shorter than the length of said elongated slot, the corners of said retaining knob where the sides of said wedge-shaped portion are joined to said knob or wing portion being undercut for engagement with said peripheral ridge of said elongated slot.
Claim 14
Dependent Claim
57 words
A three-piece shipping clamping device as set forth in claim 11 wherein a stop recess is formed in the bottom of the projection extended inwardly into said barrel portion to define said recess; and a projection for engagement with said stop recess is extended from each end of said knob or wing portion of said retaining member.
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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) | 1979-11-09 | 1980-05-10 | 1980-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-09 | 1984-05-10 | 1984-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-09 | 1988-05-10 | 1988-11-09 | $7700.00 | Window Closed / Lapsed |