US3590464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Threaded fastener and method of making the same
Assignee: Gulf Energy and Environmental Systems Inc
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Filing: 1969-03-07
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Granted: 1971-07-06
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Expires: 1989-03-07
Abstract
Abstract A threaded fastener and a method of making the same are provided in which an outer member with an opening therein receives an internally threaded female member which in turn is adapted to receive an externally threaded male member screwed in an entry end of the female member. The female member is disposed at least partially within the opening of the outer member. A time varying magnetic field is established outside of the outer member to compress the outer member, thus simultaneously joining the outer member and the female member and increasing resistance to rotation of the male member in the female member.
Inventors
- 👤 Paul Wildi
- 👤 Lesley L Seyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
B; B62; B62D; B62D19/00; B21; B21D; B21D26/00; B21D26/14; B21D39/00; B21D39/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49606; Y10T29/49803; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T403/00; Y10T403/29; Y10T403/49; Y10T403/4983
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
153 words
A method of making a fastener comprising providing an outer member having an opening therein, providing a hollow threaded female member with a wrenching head adjacent one end thereof for receiving an externally threaded male member inserted into said one end thereof, at least a portion of said wall of said female member being weakened to permit deformation of said wall of said female member, disposing said female member partially within said opening of said outer member with said wrenching head protruding therefrom, and simultaneously permanently joining said outer member to said female member and permanently deforming the threads of said female member disposed within said opening of said outer member to increase resistance to rotation of said male member in said female member by establishing a time varying magnetic field outside of said outer member thereby compressing said outer member against said female member and deforming said wall at said weakened portion.
Claim 2
Independent Claim
153 words
A method of making a fastener comprising providing an outer member having an opening therein, providing a hollow threaded female member with a wrenching head adjacent one end thereof for receiving an externally threaded male member inserted into said one end thereof, at least a portion of said wall of said female member being weakened to permit deformation of said wall of said female member, disposing said female member partially within said opening of said outer member with said wrenching head protruding therefrom, and simultaneously permanently joining said outer member to said female member and permanently deforming the threads of said female member disposed within said opening of said outer member to increase resistance to rotation of said male member in said female member by establishing a time varying magnetic field outside of said outer member thereby compressing said outer member against said female member and deforming said wall at said weakened portion.
Claim 3
Dependent Claim
22 words
A method in accordance with claim 1 whErein said female member is formed of a wall of hard metal with internal threads.
Claim 4
Dependent Claim
20 words
A method in accordance with claim 1 wherein said female member is formed of a wall of a plastic material.
Claim 5
Dependent Claim
14 words
A method in accordance with claim 3 wherein said female member has internal threads.
Claim 6
Dependent Claim
21 words
A method in accordance with claim 1 including controlling said magnetic field to produce a predetermined deformation of said female member.
Claim 7
Dependent Claim
41 words
A method in accordance with claim 1 comprising providing said female member with an annular external groove and positioning said female member so that the edges of said opening in said outer member engage said groove upon establishment of said field.
Claim 8
Dependent Claim
45 words
A method in accordance with claim 1 wherein said female member has an axially elongated shape and wherein said portion of said female member is weakened by providing said female member with an axially extending slot remote from said entry end of said female member.
Claim 9
Dependent Claim
34 words
A method in accordance with claim 1 wherein said female member has chamfered end faces and wherein said portion of said female member is weakened by providing a transverse slot in said female member.
Claim 10
Dependent Claim
35 words
A method in accordance with claim 1 wherein said portion of said female member is weakened by providing a transverse slot in said female member including the step of chamfering the edges forming said slot.
Claim 11
Dependent Claim
24 words
A method in accordance with claim 1 wherein said portion of said female member is weakened by providing a plurality of axially extending slots.
Claim 12
Dependent Claim
26 words
A method in accordance with claim 1 including providing said male member and positioning said male member in said female member before establishing said magnetic field.
Claim 13
Independent Claim
166 words
A method of making a fastener comprising providing an outer member having an opening therein, providing a hollow female member formed of a wall with internal threads with a wrenching head adjacent one end thereof for receiving an externally threaded male member screwed into said one end thereof, disposing said female member partially within said opening of said outer member with said wrenching head protruding therefrom, and simultaneously permanently joining said outer member to said female member and permanently placing some of the threads of said female member disposed within said opening of said outer member out of phase with others of said threads of said female member disposed within said opening of said outer member to increase resistance to rotation of said male member in said female member by establishing a time varying magnetic field outside of said outer member thereby compressing said outer member against said female member and moving a portion of said female member relative to another portion of said female member.
Claim 14
Independent Claim
166 words
A method of making a fastener comprising providing an outer member having an opening therein, providing a hollow female member formed of a wall with internal threads with a wrenching head adjacent one end thereof for receiving an externally threaded male member screwed into said one end thereof, disposing said female member partially within said opening of said outer member with said wrenching head protruding therefrom, and simultaneously permanently joining said outer member to said female member and permanently placing some of the threads of said female member disposed within said opening of said outer member out of phase with others of said threads of said female member disposed within said opening of said outer member to increase resistance to rotation of said male member in said female member by establishing a time varying magnetic field outside of said outer member thereby compressing said outer member against said female member and moving a portion of said female member relative to another portion of said female member.
Claim 15
Dependent Claim
51 words
A method in accordance with claim 2 including moving a portion of said female member relative to another portion of said female member so that said deformation of said threads places some of said threads of said female member out of phase with other of said threads of said female member.
Claim 16
Dependent Claim
51 words
A method in accordance with claim 4 including moving a portion of said female member relative to another portion of said female member so that said deformation of said threads places some of said threads of said female member out of phase with other of said threads of said female member.
Claim 17
Dependent Claim
33 words
A method in accordance with claim 13 wherein said portions of said female member are at least partially separated by a transverse slot through said wall and edges of said portions are chamfered.
Claim 18
Dependent Claim
55 words
A method in accordance with claim 2 wherein said female member comprises two separate coaxial annular portions, said male member is positioned within said female member before said magnetic field is established and said annular portions are so shaped as to rotate in opposite directions without substantial axial movement upon establishment of said magnetic field.
References Cited (Backward Citations)
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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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |