US3926356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inserts
Assignee: PSM International PLC
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Filing: 1974-06-24
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Granted: 1975-12-16
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Expires: 1994-06-24
Abstract
Abstract Apparatus for installing inserts into a thermoplastic workpiece comprises a reciprocable mandrel for displacing the inserts individually from a supply thereof towards and into a bore in the workpiece which is supported on a support bed of the apparatus. The inserts are accommodated within a shoe of thermal conducting material through which the mandrel passes and the shoe is connected to a heater device so that the inserts are heated both prior to, and during, engagement with the mandrel. To prolong the length of time for heating the inserts, the shoe is coupled with the mandrel for movement towards the workpiece.
Inventors
- 👤 Leslie Ernest Still
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:30
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/47; B29C66/474; B29C65/00; B29C65/02; B29C65/44; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/74; B29C66/742; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C66/812; B29C66/8126; B29C66/81261
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
157 words
Apparatus for installing metallic inserts into a thermoplastic workpiece, comprising a fixed workpiece support bed, a fixed supporting frame, a mandrel reciprocably mounted on the frame, having a tip shaped to fit and carry an insert to be driven thereby, an insert-receiving member reciprocably mounted on the frame, having a passage which is open at both ends and is axially aligned with the mandrel, means for supplying inserts one at a time to said passage, means for heating the insert-receiving member to transmit heat therefrom to the inserts, means for reciprocating the mandrel axially relative to the frame to engage a metallic insert in said passage and to carry and drive the insert into a workpiece supported on the bed, and mechanism for moving the insert-receiving member toward the workpiece before each insert is thus driven into the workpiece, to increase the length of time during which the insert remains in thermal contact with the insert-receiving member.
Claim 2
Dependent Claim
157 words
Apparatus for installing metallic inserts into a thermoplastic workpiece, comprising a fixed workpiece support bed, a fixed supporting frame, a mandrel reciprocably mounted on the frame, having a tip shaped to fit and carry an insert to be driven thereby, an insert-receiving member reciprocably mounted on the frame, having a passage which is open at both ends and is axially aligned with the mandrel, means for supplying inserts one at a time to said passage, means for heating the insert-receiving member to transmit heat therefrom to the inserts, means for reciprocating the mandrel axially relative to the frame to engage a metallic insert in said passage and to carry and drive the insert into a workpiece supported on the bed, and mechanism for moving the insert-receiving member toward the workpiece before each insert is thus driven into the workpiece, to increase the length of time during which the insert remains in thermal contact with the insert-receiving member.
Claim 3
Dependent Claim
44 words
Apparatus according to claim 1 wherein the insert-rceiving member comprises a first section in which said passage is provided and a second section in direct thermal contact with the heating means, said first and second sections being releasably interconnected in good thermal conducting realtionship.
Claim 4
Dependent Claim
36 words
Apparatus according to claim 1 wherein said passage terminates in a portion of reducing cross-section having radially-elastically-deformable walls whereby resistance to displacement of inserts out of the passage obtains adjacent the exit end of said passage.
Claim 5
Dependent Claim
22 words
Apparatus according to claim 1 wherein the insert-receiving member has an insert supply passage which intersects the first-mentioned passage at an angle.
Claim 6
Dependent Claim
55 words
Apparatus according to claim 1 wheren the mechanism for moving the insert-receiving member comprises a spring acting between said member and the frame, urging said member forward, an abutment connected to the mandrel against which said member is urged by the spring, and a stop on the frame which limits forward movement of said member.
Claim 7
Dependent Claim
26 words
Apparatus according to claim 5 wherein said stop is engageable by an abutment on said member which is adjustable to determine the stroke of said member.
References Cited (Backward Citations)
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US1125411A
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US1506788A
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US2343982A
Cited
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |