US4538301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device
Assignee: DIERK FILMER
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Filing: 1982-12-30
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Granted: 1985-09-03
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Expires: 2002-12-30
Abstract
Abstract To protect a body sensitive to impact or pressure, e.g. the backbone of a two-wheeled vehicle rider or of an athlete, several, at least partially uniform, essentially compression-resistant elements (1; 1a-1d; 1'), expediently in the form of blocks or loops (1'), are arranged essentially directly adjoining one another and joined flexibly and with high tension strength to one another along their inner surfaces (10a) or edges facing the body. The connection is provided preferably with the aid of a strip-shaped layer (2) of cloth, metal or plastic foil to which the elements (1; 1a-1d; 1') are attached with high tension strength by cementing, tacking or in another manner.
Inventors
- 👤 Harry L. Sawatzki
- 👤 Markus Koller
- 👤 Hansjorg Schaedler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:50
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/10; A; A41; A41D; A41D13/00; A41D13/015; A41D13/0156; A41D31/00; A41D31/04; A41D31/28; A41D31/285; A63; A63B; A63B71/00; A63B71/08; A63B71/12; B32B5/00; B32B5/02; B32B5/022; B32B5/024; B32B5/18; B32B5/22; B32B5/24; B32B5/245; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2305/00; B32B2305/08; B32B2571/00; Y; Y10; Y10S; Y10S428/00; Y10S428/911
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
147 words
In a protective device for dissipating energy delivered by an impact or blow from a certain direction: a series of pressure resistant, stiff elements substantially arranged adjacently to each other, each of said elements having an outer surface extending in a first plane and being exposed to said energy, side surfaces extending each in a plane intersecting said first plane and propping against each other, whereby said elements form a rigid shield which essentially follows the course of the body portion to be protected, and an inner surface opposite to said outer surface; said elements being frusto-pyramidal type elements having a base surface forming said inner surface, said frusto-pyramidal type elements being arranged in at least two rows; and stretch resistant material interconnecting said elements at said inner surfaces to allow said elements to flex against said direction and to rigidly shield against said impact or blow.
Claim 2
Dependent Claim
147 words
In a protective device for dissipating energy delivered by an impact or blow from a certain direction: a series of pressure resistant, stiff elements substantially arranged adjacently to each other, each of said elements having an outer surface extending in a first plane and being exposed to said energy, side surfaces extending each in a plane intersecting said first plane and propping against each other, whereby said elements form a rigid shield which essentially follows the course of the body portion to be protected, and an inner surface opposite to said outer surface; said elements being frusto-pyramidal type elements having a base surface forming said inner surface, said frusto-pyramidal type elements being arranged in at least two rows; and stretch resistant material interconnecting said elements at said inner surfaces to allow said elements to flex against said direction and to rigidly shield against said impact or blow.
Claim 3
Dependent Claim
138 words
In a protective device for dissipating energy delivered by an impact or blow from a certain direction: a series of pressure resistant, stiff elements substantially arranged adjacently to each other, each of said elements having an outer surface extending in a first plane and being exposed to said energy, side surfaces extending each in a plane intersecting said first plane and propping against each other, whereby said elements form a rigid shield which essentially follows the course of the body portion to be protected, said outer surface being formed by a pressure reinforcing layer extending up to the side surfaces, and an inner surface opposite to said outer surface; and stretch resistant material interconnecting said elements at said inner surfaces to allow said elements to flex against said direction and to rigidly shield against said impact or blow.
Claim 4
Dependent Claim
138 words
In a protective device for dissipating energy delivered by an impact or blow from a certain direction: a series of pressure resistant, stiff elements substantially arranged adjacently to each other, each of said elements having an outer surface extending in a first plane and being exposed to said energy, side surfaces extending each in a plane intersecting said first plane and propping against each other, whereby said elements form a rigid shield which essentially follows the course of the body portion to be protected, said outer surface being formed by a pressure reinforcing layer extending up to the side surfaces, and an inner surface opposite to said outer surface; and stretch resistant material interconnecting said elements at said inner surfaces to allow said elements to flex against said direction and to rigidly shield against said impact or blow.
Claim 5
Dependent Claim
14 words
Protective device as claimed in claim 2, wherein the layer consists of fiber-reinforced plastic.
Claim 6
Dependent Claim
23 words
Protective device as claimed in claim 2, wherein the material under said pressure reinforcing layer consists at least in part of structural foam.
Claim 7
Dependent Claim
19 words
Protective device as claimed in claim 4, wherein the elements consist at least in part of integral polyurethane foam.
Claim 8
Dependent Claim
27 words
Protective device as claimed in claim 2, wherein the layer consists of a compression-resistant polyurethane material joined integrally to a polyurethane foam material of the remaining element.
Claim 9
Dependent Claim
45 words
Protective device as claimed in claim 1 or 2, wherein said interconnecting material comprises a layer of non-stretching threads or fibers extending across the plane of at least one of said side surfaces and being connected to the inner surfaces, the fibers consisting of polyimide.
Claim 10
Dependent Claim
13 words
Protective device as claimed in claim 2, wherein the layer consists of metal.
Claim 11
Dependent Claim
45 words
Protective device as claimed in claim 1 or 2, wherein said interconnecting material comprises a layer of non-stretching threads or fibers extending across the plane of at least one of said side surfaces and being connected to the inner surfaces, said fibers consisting of glass.
Claim 12
Dependent Claim
45 words
Protective device as claimed in claim 1 or 2, wherein said interconnecting material comprises a layer of non-stretching threads or fibers extending across the plane of at least one of said side surfaces and being connected to the inner surfaces, said fibers consisting of metal.
Claim 13
Dependent Claim
176 words
In a protective device for dissipating energy delivered by an impact or blow from a certain direction: a series of pressure resistant, stiff elements substantially arranged adjacently to each other, each of said elements having an outer surface extending in a first plane and being exposed to said energy, side surfaces extending each in a plane intersecting said first plane and propping against each other, whereby said elements form a rigid shield which essentially follows the course of the body portion to be protected, and an inner surface opposite to said outer surface; said elements being made from laminated material, each element consisting of a paunchy loop of said material, said paunchy loops being so closely adjacent to each other that said laminated material is in meandering form in cross-sectional view, whereby also in a non-stress condition the side surfaces of the loops prop against each other; and stretch resistant material interconnecting said elements at said inner surfaces to allow said elements to flex against said direction and to rigidly shield against said impact or blow.
Claim 14
Dependent Claim
176 words
In a protective device for dissipating energy delivered by an impact or blow from a certain direction: a series of pressure resistant, stiff elements substantially arranged adjacently to each other, each of said elements having an outer surface extending in a first plane and being exposed to said energy, side surfaces extending each in a plane intersecting said first plane and propping against each other, whereby said elements form a rigid shield which essentially follows the course of the body portion to be protected, and an inner surface opposite to said outer surface; said elements being made from laminated material, each element consisting of a paunchy loop of said material, said paunchy loops being so closely adjacent to each other that said laminated material is in meandering form in cross-sectional view, whereby also in a non-stress condition the side surfaces of the loops prop against each other; and stretch resistant material interconnecting said elements at said inner surfaces to allow said elements to flex against said direction and to rigidly shield against said impact or blow.
Claim 15
Dependent Claim
15 words
Protective device as claimed in claim 11, wherein said laminated material is a metal sheet.
Claim 16
Dependent Claim
16 words
Protective device as claimed in claim 11, wherein said laminated material is a stiff plastic foil.
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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) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |