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Patent US3769117A successfully refreshed from Google Patents.
US3769117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser welding plastic tubes
Assignee: Primerica Inc
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Filing: 1971-12-30
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Granted: 1973-10-30
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Expires: 1991-12-30
Abstract
Abstract A method of welding a plastic end member to an unstepped, plastic tubular body which comprises positioning the end member within the body and then irradiating the area to be welded with a laser beam for a specified time sufficient to achieve the desired weld while simultaneously imparting relative rotational motion between the beam and the area to be welded.
Inventors
- 👤 W Bowen
- 👤 C Goehring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:01
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/50; B29C66/65; B29C65/00; B29C65/02; B29C65/14; B29C65/16; B29C65/1629; B29C65/1654; B29C65/1661; B29C65/56; B29C65/567; B29C65/568; B29C66/01; B29C66/02; B29C66/022; B29C66/03; B29C66/034; B29C66/0342; B29C66/05; B29C66/10; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/302; B29C66/3022; B29C66/30223; B29C66/344; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/61; B29C66/612; B29C66/63; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/82; B29C66/826; B29C66/8262; B29C66/8264; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/90; B29C66/93; B29C66/934; B29C66/93451; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0822; B29C65/1603; B29C65/1612; B29C65/1616; B29C65/1619; B29C65/1622; B29C65/1635; B29C65/1641; B29C65/1664; B29C65/1677; B29C66/71; B29C66/72; B29C66/723; B29C66/812; B29C66/8126; B29C66/81266; B29C66/81268; B29C66/939; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/0608; B29K2023/0633; B29K2023/065; B29K2995/00; B29K2995/0018; B29K2995/0026; B29K2995/0027; B29L; B29L2009/00; B29L2009/003; B29L2023/00; B29L2023/20; B29L2023/22
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
75 words
A method of welding a plastic end member to an unstepped, plastic tubular body, comprising: positioning the end member within the body in substantially the same relative position desired in the finished article; irradiating the area to be welded with laser beam for a fraction of a second sufficient to achieve the desired weld while a mandrel simultaneously imparts relative rotational motion of at least 360* between the beam and the area to be welded.
Claim 2
Independent Claim
75 words
A method of welding a plastic end member to an unstepped, plastic tubular body, comprising: positioning the end member within the body in substantially the same relative position desired in the finished article; irradiating the area to be welded with laser beam for a fraction of a second sufficient to achieve the desired weld while a mandrel simultaneously imparts relative rotational motion of at least 360* between the beam and the area to be welded.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein said end member is a squeeze tube head and said body is a sleeve.
Claim 4
Dependent Claim
34 words
The method of claim 2 wherein the outer diameter of the skirt of said head is greater than the inner diameter of the sleeve, thereby producing an interference fit between the head and sleeve.
Claim 5
Dependent Claim
15 words
The method of claim 3 wherein the laser beam has a wavelength of 10.6 microns.
Claim 6
Dependent Claim
18 words
The method of claim 4 wherein the laser beam is elongated in the direction of the weld path.
Claim 7
Dependent Claim
13 words
The method of claim 5 wherein the head and sleeve are both polyetHylene.
Claim 8
Dependent Claim
11 words
The method of claim 1 wherein the fraction is about one-fourth.
Claim 9
Dependent Claim
24 words
The method of claim 7 wherein the rotational motion consists of about seven revolutions of the end member and body relative to the beam.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |