US3667655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the rapid assembly of diptubes into spray cans and a diptube useful therein
Assignee: Dow Chemical Co
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Filing: 1970-03-30
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Granted: 1972-06-06
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Expires: 1990-03-30
Abstract
Abstract Method for the rapid assembly of long flexible diptubes into spray cans wherein the diptube is fixed into a coiled configuration prior to its insertion into the spray can and regains its normal shape after assembly.
Inventors
- 👤 Herman Knieriem Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/32
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
134 words
A method for the rapid assembly of relatively long, flexible, weighted diptubes into a spray can substantially filled with a sprayable liquid prior to the sealing thereof, the steps which comprise 1. providing a long flexible diptube with a weighted end, and a mounting cup on the opposite end, 2. coiling said diptube intermediate the ends thereof, to provide a coiled and shortened diptube having adjacent coils in substantial contact, 3. fixing said diptube in coiled relationship with a holding means which is soluble in the contents to be dispensed in said spray can and which is compatible with the contents and does not interfere with the spraying function of said spray can, 4. inserting said coiled diptube into said substantially filled spray can, and 5. sealing said mounting cup onto said spray can.
Claim 2
Independent Claim
134 words
A method for the rapid assembly of relatively long, flexible, weighted diptubes into a spray can substantially filled with a sprayable liquid prior to the sealing thereof, the steps which comprise 1. providing a long flexible diptube with a weighted end, and a mounting cup on the opposite end, 2. coiling said diptube intermediate the ends thereof, to provide a coiled and shortened diptube having adjacent coils in substantial contact, 3. fixing said diptube in coiled relationship with a holding means which is soluble in the contents to be dispensed in said spray can and which is compatible with the contents and does not interfere with the spraying function of said spray can, 4. inserting said coiled diptube into said substantially filled spray can, and 5. sealing said mounting cup onto said spray can.
Claim 3
Dependent Claim
20 words
coiling said diptube intermediate the ends thereof, to provide a coiled and shortened diptube having adjacent coils in substantial contact,
Claim 4
Dependent Claim
20 words
coiling said diptube intermediate the ends thereof, to provide a coiled and shortened diptube having adjacent coils in substantial contact,
Claim 5
Dependent Claim
17 words
The method as set forth in claim 1 in which the holding means is a soluble adhesive.
Claim 6
Dependent Claim
28 words
The method as set forth in claim 1 in which the holding means is at least one soluble plastic ribbon disposed axially about the coils of said diptube.
Claim 7
Dependent Claim
42 words
fixing said diptube in coiled relationship with a holding means which is soluble in the contents to be dispensed in said spray can and which is compatible with the contents and does not interfere with the spraying function of said spray can,
Claim 8
Dependent Claim
42 words
fixing said diptube in coiled relationship with a holding means which is soluble in the contents to be dispensed in said spray can and which is compatible with the contents and does not interfere with the spraying function of said spray can,
Claim 9
Dependent Claim
11 words
inserting said coiled diptube into said substantially filled spray can, and
Claim 10
Dependent Claim
11 words
inserting said coiled diptube into said substantially filled spray can, and
Claim 11
Dependent Claim
48 words
The method as set forth in claim 1 in which the sprayable liquid is selected from the group consisting of water based compositions and lower alkanol based compositions and the holding means is an adhesive selected from the group consisting of cellulose ether adhesives and polyvinyl alcohol adhesives.
Claim 12
Dependent Claim
38 words
The method as set forth in claim 1 in which the sprayable liquid is selected from the group consisting of water based compositions and lower alkanol based compositions and the holding means is a ribbon of cellulose ether.
Claim 13
Dependent Claim
8 words
sealing said mounting cup onto said spray can.
Claim 14
Dependent Claim
8 words
sealing said mounting cup onto said spray can.
Claim 15
Dependent Claim
56 words
A diptube for use in spray cans comprising a flexible plastic tube formed into a predetermined number of contiguous coils, and means for holding said coils together which is soluble in the contents of said spray cans and which is compatible with the contents and does not interfere with the spraying function of said spray cans.
Claim 16
Dependent Claim
56 words
A diptube for use in spray cans comprising a flexible plastic tube formed into a predetermined number of contiguous coils, and means for holding said coils together which is soluble in the contents of said spray cans and which is compatible with the contents and does not interfere with the spraying function of said spray cans.
Claim 17
Dependent Claim
21 words
A diptube as set forth in claim 6 in which the means for holding said coils together is a soluble adhesive.
Claim 18
Dependent Claim
34 words
A diptube as set forth in claim 6 in which the means for holding said coils together is at least one plastic ribbon forming a closed loop around the axial length of said coils.
Claim 19
Dependent Claim
15 words
A diptube as set forth in claim 6 which comprises, in addition, a weighted end.
Claim 20
Dependent Claim
25 words
A diptube as set forth in claim 9 in which weighted end comprises a metal body through which said tube passes and is permanently affixed.
Claim 21
Dependent Claim
37 words
A diptube as set forth in claim 6 which comprises, in addition, a mounting cup on one end thereof adapted to retain said diptube in operative relationship after said mounting cup is sealed onto said spray can.
Claim 22
Dependent Claim
46 words
A diptube as set forth in claim 9 which comprises, in addition, a mounting cup on the end remote from said weighted end whereby said mounting cup is adapted to retain said diptube in operative relationship after said mounting cup is sealed onto said spray can.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |