US3673044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing interlayers for antenna type windshields
Assignee: Pilkington North America Inc
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Filing: 1969-09-10
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Granted: 1972-06-27
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Expires: 1989-09-10
Abstract
Abstract A method of and apparatus for preparing plastic sheets, to be used as interlayers in laminated antenna-windshield structures, by feeding a length of wire onto each sheet in a predetermined pattern, progressively heating the plastic in advance of the feeding wire and rolling the fed wire into the heated plastic, and then feeding a second length of wire onto and rolling it into the sheet in an identical but reversed pattern and in close proximity to the first length.
Inventors
- 👤 Alfred H Miller
- 👤 Lee F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:49
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1271; B; B29; B29C; B29C70/00; B29C70/68; B29C70/82; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10376; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; B64C1/1492; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
In apparatus for incorporating wire antenna elements into plastic sheets to be used as interlayers for laminated safety glass, a table, areas on said table for supporting and locating said plastic sheets, a wire laying apparatus including a carriage frame mounted for movement along said table into and out of operative association with each of said support areas, a pair of track templates carried in opposed relationship to one another on said carriage for swinging movement into and out of operative position above a plastic sheet mounted on one of said support areas, a head mounted on each of said track templates for movement therealong, a roll swingably mounted from said head for contacting engagement with said plastic sheet, means resiliently urging said roll toward said sheet, means for heating said roll, a holder for a supply of wire also carried by said head, and means for directing wire from said holder below said roll.
Claim 2
Dependent Claim
155 words
In apparatus for incorporating wire antenna elements into plastic sheets to be used as interlayers for laminated safety glass, a table, areas on said table for supporting and locating said plastic sheets, a wire laying apparatus including a carriage frame mounted for movement along said table into and out of operative association with each of said support areas, a pair of track templates carried in opposed relationship to one another on said carriage for swinging movement into and out of operative position above a plastic sheet mounted on one of said support areas, a head mounted on each of said track templates for movement therealong, a roll swingably mounted from said head for contacting engagement with said plastic sheet, means resiliently urging said roll toward said sheet, means for heating said roll, a holder for a supply of wire also carried by said head, and means for directing wire from said holder below said roll.
Claim 3
Dependent Claim
50 words
Apparatus as defined in claim 1 in which second heads are mounted for movement along said track templates in advance of said first heads, rolls are associated with said second heads and mounted for resilient contact with said plastic sheet, and means is provided for heating said last mentioned rolls.
Claim 4
Dependent Claim
109 words
Apparatus as defined in claim 1 in which means is provided for initiating and automatically performing in timed relation to one another a complete sequence of steps including swinging one of said track templates into operative position after said carriage is in operative association with one of said platforms, driving said head associated therewith along said one track template, swinging said one track template out of operative position, swinging the other of said track templates into operative position, driving said head associated therewith along said other track template, swinging said other track template out of operative position, and moving said carriage into operative association with another of said platforms.
Claim 5
Dependent Claim
38 words
Apparatus as defined in claim 1 in which said support areas are surfaces of platforms carried by said table, and said table is provided with ramps in the path of said rolls leading up to said platform surfaces.
Claim 6
Dependent Claim
64 words
Apparatus as defined in claim 4 in which said platform surfaces have cut out areas also in the path of said rolls which leave plastic sheets carried thereby unsupported beyond the points where said wire is to be laid, and a cutting edge is positioned to be engaged by said rolls as they travel beyond said supporting surfaces and over said cut out areas.
Claim 7
Dependent Claim
36 words
Apparatus as defined in claim 5 in which resilient hold down members are mounted to depend from said track templates in positions to engage said plastic sheets when said track templates are swung into operative position.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |