Patent US4023675A successfully refreshed from Google Patents.
US4023675A
Expired / Lapsed
US
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Packing for impression material for dental use
Assignee: NICHOLAS-MEPROS BV INDUSTRIEWEG 1 5531 AD BLADEL NETHERLANDS A DUTCH CORP
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Filing: 1976-01-23
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Granted: 1977-05-17
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Expires: 1996-01-23
Abstract
Abstract Packing for impression material for dental use, comprising a container of flexible material divided into two compartments, wherein for the separation of the compartments the walls thereof are locally compressed by a clamping member, wherein the clamping member is adapted to receive the compressed container wall portions according to a labyrinth path.
Inventors
- 👤 Antonius Bernardus Claasen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:01
CPC Classifications
A; A61; A61C; A61C9/00; B; B65; B65D; B65D81/00; B65D81/32; B65D81/3261; B65D81/3266; Y; Y10; Y10S; Y10S366/00; Y10S366/602
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
63 words
A packing container for dental impression material which container comprises in combination, a container portion having walls formed of flexible material and having a restricted area defining two compartments, a clamping means having a passage disposed to encircle the restricted area and having separate means oppositely disposed relative a perpendicular plane through said passage for convolutely clamping the wall portions of the container.
Claim 2
Dependent Claim
63 words
A packing container for dental impression material which container comprises in combination, a container portion having walls formed of flexible material and having a restricted area defining two compartments, a clamping means having a passage disposed to encircle the restricted area and having separate means oppositely disposed relative a perpendicular plane through said passage for convolutely clamping the wall portions of the container.
Claim 3
Dependent Claim
21 words
The packing container of claim 1 wherein the said separate means comprises at least two, oppositely oriented, successive, loop-shaped path sections.
Claim 4
Dependent Claim
38 words
The packing container of claim 1 wherein the clamping means has the passage for the container wall at its center, and the oppositely directed folding means projecting from the passage for receiving folded-back container portions under clamping action.
Claim 5
Dependent Claim
15 words
The packing container of claim 3 wherein the clamping means is formed of sheet-like material.
Claim 6
Dependent Claim
15 words
The packing container of claim 3 wherein the clamping means is formed of flexible material.
Claim 7
Dependent Claim
44 words
The packing container of claim 1 wherein the clamping means has two parts which are lockable with respect to one another and which form each individually or jointly a substantially prismatic body between which parts the restricted area of the container is received clampingly.
Claim 8
Dependent Claim
22 words
The packing container of claim 6 wherein at least one of the two mutually lockable parts is provided with a handle-like extension.
Claim 9
Dependent Claim
12 words
The packing container of claim 7 wherein the extension is a spatula.
Claim 10
Dependent Claim
31 words
The packing container of claim 6 wherein the clamping means comprises two clamping halves which interconnect at one end by a hinge and at the other end by a locking member.
Claim 11
Dependent Claim
28 words
The packing container of claim 9 wherein facing surfaces of the clamping halves include longitudinally extending, engaging ribs and grooves, said ribs and grooves being conical in configuration.
Claim 12
Dependent Claim
24 words
The packing container of claim 10 wherein at least one rib and one corresponding groove are disposed at the center of the facing surfaces.
Claim 13
Dependent Claim
25 words
The packing container of claim 9 wherein the locking member is formed by an annular gripping piece, the inner wall of which is slightly conical.
Claim 14
Dependent Claim
24 words
The packing container of claim 6 wherein the clamping member comprises two mutually rotatable, substantially concentric elements having slots for receiving the container walls.
Claim 15
Dependent Claim
36 words
The packing container of claim 13 wherein the outer wall of the inner portion and the inner wall of the outer portion are provided with one or more raised portions and mating recesses which cooperate snappingly.
Claim 16
Dependent Claim
15 words
The packing container of claim 1 having means adapted to be placed in a shaker.
Claim 17
Dependent Claim
21 words
The packing container of claim 15 wherein the said means include apertures disposed along an edge portion of the packing container.
References Cited (Backward Citations)
US3462070A
Cited
US3741381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |