US3898526A
Expired / Lapsed
US
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Static discharge apparatus and several methods for manufacturing the static discharge apparatus
Assignee: Individual
•
Filing: 1973-04-30
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Granted: 1975-08-05
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Expires: 1993-04-30
Abstract
Abstract A static discharge apparatus comprising a rigid body including a discharge tip portion thereon. A plurality of resilient conducting whisker-like fibers are attached to the discharge tip portion and substantially cover the entire surface thereof.
Inventors
- 👤 Charles D Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:37
CPC Classifications
H; H05; H05F; H05F3/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
97 words
A method for manufacturing a static discharge means comprising the steps of: impregnating a matrix material with a plurality of whisker-like conductive particles wherein said whisker-like conductive particles are oriented in a manner such that they extend substantially radially from said matrix material thereby forming a composite material; removing a portion of said composite material whereby said composite material is conformed to a preselected shape whereby said whisker-like conductive particles extend substantially radially; and exposing a plurality of ends of said whisker-like particles by removing a portion of said matrix material thereby forming said static discharge means.
Claim 2
Independent Claim
97 words
A method for manufacturing a static discharge means comprising the steps of: impregnating a matrix material with a plurality of whisker-like conductive particles wherein said whisker-like conductive particles are oriented in a manner such that they extend substantially radially from said matrix material thereby forming a composite material; removing a portion of said composite material whereby said composite material is conformed to a preselected shape whereby said whisker-like conductive particles extend substantially radially; and exposing a plurality of ends of said whisker-like particles by removing a portion of said matrix material thereby forming said static discharge means.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein said matrix material has an operational conductivity greater than approximately 10 8 mohs per meter.
Claim 4
Dependent Claim
27 words
The method of claim 1 wherein said matrix material is coated with a conductive layer having an operational conductivity greater than approximately 10 8 mohs per meter.
Claim 5
Independent Claim
159 words
A method for manufacturing a static discharge means comprising the steps of: forming a flat layer of a matrix material; wrapping conductive wire around a frame structure; placing a layer of matrix material on each side of said wrapped frame to form a sandwich-like structure having two outer layers of said matrix material and an inner layer of conductive wire; compressing said sandwich to form a single composite material wherein said conductive wire is embedded into said matrix material; disecting said composite material into a plurality of composite segments with whisker-like conductive particles embedded therein; stacking a plurality of said composite segments; compressing said stack of composite Segments to form a unitary structure; removing a portion of said composite material of said unitary structure whereby said unitary structure is conformed to a preselected shape; and exposing a plurality of ends of said whisker-like conductive particles by removing a portion of said matrix material thereby forming said static discharge means.
Claim 6
Independent Claim
159 words
A method for manufacturing a static discharge means comprising the steps of: forming a flat layer of a matrix material; wrapping conductive wire around a frame structure; placing a layer of matrix material on each side of said wrapped frame to form a sandwich-like structure having two outer layers of said matrix material and an inner layer of conductive wire; compressing said sandwich to form a single composite material wherein said conductive wire is embedded into said matrix material; disecting said composite material into a plurality of composite segments with whisker-like conductive particles embedded therein; stacking a plurality of said composite segments; compressing said stack of composite Segments to form a unitary structure; removing a portion of said composite material of said unitary structure whereby said unitary structure is conformed to a preselected shape; and exposing a plurality of ends of said whisker-like conductive particles by removing a portion of said matrix material thereby forming said static discharge means.
Claim 7
Dependent Claim
18 words
The method of claim 4 wherein said composite material is removed to form said preselected shape by machining.
Claim 8
Dependent Claim
15 words
The method of claim 5 wherein said matrix material is removed by a wire brush.
Claim 9
Dependent Claim
12 words
The method of claim 4 wherein said conductive coating comprises fluorinated hydrocarbon.
Claim 10
Dependent Claim
20 words
The method of claim 4 wherein said matrix material has a conductivity greater than approximately 10 8 mohs per meter.
Claim 11
Dependent Claim
28 words
The method of claim 8 wherein said matrix material has a high melting point, a high modulus of elasticity, a high body strength and a low chemical reactivity.
Claim 12
Dependent Claim
20 words
The method of claim 9 wherein said conductive wire has a high melting point and a high modulus of elasticity.
Claim 13
Dependent Claim
23 words
The method of claim 9 wherein said conductive wire is selected from the group consisting of tungsten, molybdenum, tantalum, copper, silicon or silver.
Claim 14
Dependent Claim
32 words
The method of claim 11 further comprising the step of connecting said static discharge means to one end of a rigid elongated body, said body being adaptable for connection to an aircraft.
Claim 15
Independent Claim
99 words
A method for manufacturing a static discharge means comprising the steps of: mixing a powdered conductive matrix material with a plurality of whisker-like conductive particles; compressing and sintering said mixture to form a unitary structure of composite material wherein said whisker-like conductive particles are oriented in a manner such that they extend substantially radially from said composite material; removing a portion of said composite material to conform said unitary structure to a preselected shape whereby said whisker-like conductive particles extend substantially radially; and exposing a plurality of ends of said whisker-like conductive particles thereby forming said static discharge means.
Claim 16
Independent Claim
99 words
A method for manufacturing a static discharge means comprising the steps of: mixing a powdered conductive matrix material with a plurality of whisker-like conductive particles; compressing and sintering said mixture to form a unitary structure of composite material wherein said whisker-like conductive particles are oriented in a manner such that they extend substantially radially from said composite material; removing a portion of said composite material to conform said unitary structure to a preselected shape whereby said whisker-like conductive particles extend substantially radially; and exposing a plurality of ends of said whisker-like conductive particles thereby forming said static discharge means.
Claim 17
Dependent Claim
31 words
The method of claim 13 further comprising the step of connecting said static discharge means to one end of a rigid body, said body being adaptable for connection to an aircraft.
Claim 18
Independent Claim
82 words
A method for manufacturing a static discharge means comprising the steps of: forming a matrix material having a preselected shape, said matrix material having an operational conductivity greater than approximately 10 8 mohs per meter; coating said matrix material with an adhesive-like substance; suspending said matrix material over a plurality of whisker-like conductive particles; and applying a high voltage between said matrix material and said whisker-like particles, whereby said whisker-like particles are attracted to said matrix material thereby-forming said static discharge means.
Claim 19
Independent Claim
82 words
A method for manufacturing a static discharge means comprising the steps of: forming a matrix material having a preselected shape, said matrix material having an operational conductivity greater than approximately 10 8 mohs per meter; coating said matrix material with an adhesive-like substance; suspending said matrix material over a plurality of whisker-like conductive particles; and applying a high voltage between said matrix material and said whisker-like particles, whereby said whisker-like particles are attracted to said matrix material thereby-forming said static discharge means.
Claim 20
Dependent Claim
31 words
The method of claim 15 further comprising the step of connecting said static discharge means to one end of a rigid body, said body being adaptable for connection to an aircraft.
Claim 21
Independent Claim
97 words
A method for manufacturing a static discharge means comprising the steps of: forming a discharge tip from a rigid material having a preselectable shape; placing said discharge tip in proximity with a compound of said rigid material; introducing a mixture of gases in said proximity; heating said mixture of gases, said discharge tip and said compound whereby said compound reacts with said gaseous mixture and causes a whisker-like crystalline material to be deposited on said discharge tip; and connecting said whisker-like coated discharge tip to one end of a rod-shaped device thereby forming said static discharge means.
Claim 22
Independent Claim
97 words
A method for manufacturing a static discharge means comprising the steps of: forming a discharge tip from a rigid material having a preselectable shape; placing said discharge tip in proximity with a compound of said rigid material; introducing a mixture of gases in said proximity; heating said mixture of gases, said discharge tip and said compound whereby said compound reacts with said gaseous mixture and causes a whisker-like crystalline material to be deposited on said discharge tip; and connecting said whisker-like coated discharge tip to one end of a rod-shaped device thereby forming said static discharge means.
Claim 23
Dependent Claim
20 words
The method of claim 17 wherein said rigid material comprises copper and wherein said compound comprises a copper halogen compound.
Claim 24
Dependent Claim
13 words
The method of claim 18 wherein said gaseous mixture cOmprises hydrogen and helium.
Claim 25
Dependent Claim
22 words
The method of claim 19 wherein said gaseous mixture, said copper halogen compound and said copper are heated to approximately 650* C.
Claim 26
Dependent Claim
25 words
The method of claim 17 wherein said rigid material is conductive and is selected from the group consisting of copper, stainless steel, tungsten or molybdenum.
Claim 27
Dependent Claim
18 words
The method of claim 17 wherein said rigid material is non-conductive and is coated with a conducting substance.
Claim 28
Independent Claim
151 words
A method for manufacturing a static discharge means comprising the steps of: forming a flat layer of a matrix material; wrapping conductive wire around both surfaces of said layer of matrix material to form a sandwich-like structure having two outer layers of said conductive wire and an inner layer of matrix material; compressing said sandwich to form a single composite material wherein said conductive wire is embedded into said matrix material; dissecting said composite material into a plurality of composite segments with whisker-like conductive particles embedded therein; stacking a plurality of said composite segments; compressing said stack of composite segments to form a unitary structure; removing a portion of said composite material of said unitary structure whereby said unitary structure is conformed to a preselected shape; and exposing a plurality of ends of said whisker-like conductive particles by removing a portion of said matrix material thereby forming said static discharge means.
Claim 29
Independent Claim
151 words
A method for manufacturing a static discharge means comprising the steps of: forming a flat layer of a matrix material; wrapping conductive wire around both surfaces of said layer of matrix material to form a sandwich-like structure having two outer layers of said conductive wire and an inner layer of matrix material; compressing said sandwich to form a single composite material wherein said conductive wire is embedded into said matrix material; dissecting said composite material into a plurality of composite segments with whisker-like conductive particles embedded therein; stacking a plurality of said composite segments; compressing said stack of composite segments to form a unitary structure; removing a portion of said composite material of said unitary structure whereby said unitary structure is conformed to a preselected shape; and exposing a plurality of ends of said whisker-like conductive particles by removing a portion of said matrix material thereby forming said static discharge means.
Claim 30
Dependent Claim
101 words
A static discharge device for use on a high speed aircraft comprising: a body adapted to be secured to said aircraft wherein said body comprises a rigid material having an operational conductivity in excess of 10 8 mohs per meter; a discharge tip located on said body; and a plurality of conducting whisker-like fibers substantially radially embedded in said discharge tip wherein each of said whisker-like fibers is physically spaced apart from each of said other whisker-like fibers in said discharge tip and wherein a plurality of the ends of said whisker-like fibers extend beyond the surface of said discharge tip.
Claim 31
Dependent Claim
101 words
A static discharge device for use on a high speed aircraft comprising: a body adapted to be secured to said aircraft wherein said body comprises a rigid material having an operational conductivity in excess of 10 8 mohs per meter; a discharge tip located on said body; and a plurality of conducting whisker-like fibers substantially radially embedded in said discharge tip wherein each of said whisker-like fibers is physically spaced apart from each of said other whisker-like fibers in said discharge tip and wherein a plurality of the ends of said whisker-like fibers extend beyond the surface of said discharge tip.
Claim 32
Dependent Claim
23 words
The static discharge device of claim 24 wherein said conductive whisker-like fibers have a high melting point and a high modulus of elasticity.
Claim 33
Dependent Claim
101 words
A static discharge device for use on a high speed aircraft comprising: a body adapted to be secured to said aircraft wherein said body comprises an inner core of substantially non-conductive rigid material and an outer layer of conductive material; a discharge tip located on said body; and a plurality of conducting whisker-like fibers substantially radially embedded in said discharge tip wherein each of said whisker-like fibers is physically spaced apart from each of said other whisker-like fibers in said discharge tip and wherein a plurality of the ends of said whisker-like fibers extend beyond the surface of said discharge tip.
Claim 34
Dependent Claim
101 words
A static discharge device for use on a high speed aircraft comprising: a body adapted to be secured to said aircraft wherein said body comprises an inner core of substantially non-conductive rigid material and an outer layer of conductive material; a discharge tip located on said body; and a plurality of conducting whisker-like fibers substantially radially embedded in said discharge tip wherein each of said whisker-like fibers is physically spaced apart from each of said other whisker-like fibers in said discharge tip and wherein a plurality of the ends of said whisker-like fibers extend beyond the surface of said discharge tip.
Claim 35
Dependent Claim
23 words
The static discharge device of claim 26 wherein said conductive whisker-like fibers have a high melting point and a high modulus of elasticity.
Claim 36
Dependent Claim
17 words
The static discharge device of claim 26 wherein said discharge tip and said body are detachably connected.
Claim 37
Dependent Claim
32 words
The static discharge device of claim 26 wherein said discharge tip comprises a rigid material having a conductivity in excess of 10 8 mohs per meter and said whisker-like fibers comprise tungsten.
Claim 38
Dependent Claim
126 words
A static discharge device for use on a high speed aircraft comprising: an elongated, substantially rigid body adapted to be secured to said aircraft, said body having an operational conductivity in excess of 10 8 mohs per meter; a discharge tip connected to said body, said discharge tip having an operational conductivity in excess of 10 8 mohs per meter; and a plurality of resilient conducting whisker-like fibers substantially radially embedded in said discharge tip wherein said fibers substantially cover The entire surface of said discharge tip but wherein each of said fibers are physically spaced apart from each of said other fibers in said discharge tip and wherein a plurality of the ends of said whisker-like fibers extend beyond the surface of said discharge tip.
Claim 39
Dependent Claim
126 words
A static discharge device for use on a high speed aircraft comprising: an elongated, substantially rigid body adapted to be secured to said aircraft, said body having an operational conductivity in excess of 10 8 mohs per meter; a discharge tip connected to said body, said discharge tip having an operational conductivity in excess of 10 8 mohs per meter; and a plurality of resilient conducting whisker-like fibers substantially radially embedded in said discharge tip wherein said fibers substantially cover The entire surface of said discharge tip but wherein each of said fibers are physically spaced apart from each of said other fibers in said discharge tip and wherein a plurality of the ends of said whisker-like fibers extend beyond the surface of said discharge tip.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |