US4989266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body armor insert
Assignee: Point Blank Body Armor Inc
•
Filing: 1989-10-13
•
Granted: 1991-02-05
•
Expires: 2009-10-13
Abstract
Abstract A body armor insert has a set of ballistic cloth plies made from polyethylene fibers sandwiched between first and second sets of ballistic cloth plies made from aramid fiber. The number of plies in each of the three sets of plies is a function of a level of protection to be provided. Each of the two sets of aramid plies are sewn together along a central region of the set of plies. The set of polyethylene fiber plies are not sewn together except that all three sets of plies are sewn together in a shoulder region of the body armor insert.
Inventors
- 👤 Anthony J. Borgese
- 👤 Gaeton J. Dragone
- 👤 David R. Hand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:19
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0471; F41H5/0485
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
174 words
A body armor set of ballistic material plies consisting essentially of: a first subset of aramid plies, a second subset of aramid plies, a subset of polyethylene plies, said subset of polyethylene plies being sandwiched between said first and second subsets of aramid plies, each of said subsets of aramid plies consisting of multiple plies of ballistic material made from aramid fiber, said subset of polyethylene plies consisting of multiple plies of ballistic material made from polyethylene, a first one of said plies of said first subset and a first one of said plies of said second subset constituting the outer surface plies of said set of plies, each of the rest of said plies of each of said subsets having both first and second faces in full surface contact with a face of an adjacent ply, ballistic resistance being provided by a set of plies in face-to-face contact with each other in sequence from a first surface aramid ply through aramid plies, polyethylene plies and aramid plies to a second surface aramid ply.
Claim 2
Dependent Claim
174 words
A body armor set of ballistic material plies consisting essentially of: a first subset of aramid plies, a second subset of aramid plies, a subset of polyethylene plies, said subset of polyethylene plies being sandwiched between said first and second subsets of aramid plies, each of said subsets of aramid plies consisting of multiple plies of ballistic material made from aramid fiber, said subset of polyethylene plies consisting of multiple plies of ballistic material made from polyethylene, a first one of said plies of said first subset and a first one of said plies of said second subset constituting the outer surface plies of said set of plies, each of the rest of said plies of each of said subsets having both first and second faces in full surface contact with a face of an adjacent ply, ballistic resistance being provided by a set of plies in face-to-face contact with each other in sequence from a first surface aramid ply through aramid plies, polyethylene plies and aramid plies to a second surface aramid ply.
Claim 3
Dependent Claim
28 words
The body armor of claim 1 wherein the total number of aramid plies in said first and second subsets together is greater than the number of polyethylene plies.
Claim 4
Dependent Claim
35 words
The body armor of claim 1 wherein the number of plies in said polyethylene subset of plies is greater than the number of plies in either said first or said second subset of aramid plies.
Claim 5
Dependent Claim
34 words
The body armor of claim 2 wherein the number of plies in said polyethylene subset of plies is greater than the number of plies in either said first or second subset of aramid plies.
Claim 6
Dependent Claim
25 words
The body armor of claim 1 wherein the aramid plies in each of said first and second subsets of plies are sewn to one another.
Claim 7
Dependent Claim
25 words
The body armor of claim 4 wherein the aramid plies in each of said first and second subsets of plies are sewn to one another.
Claim 8
Dependent Claim
27 words
The body armor of claim 5 having a shoulder region, all of said plies of all three of said subsets being sewn together in said shoulder region.
Claim 9
Dependent Claim
27 words
The body armor of claim 6 having a shoulder region, all of said plies of all three of said subsets being sewn together in said shoulder region.
Claim 10
Dependent Claim
178 words
A body armor set of ballistic material plies consisting essentially of: a first subset of aramid plies, a second subset of aramid plies, a subset of polyethylene plies, said subset of polyethylene plies being sandwiched between said first and second subsets of aramid plies, each of said subsets of aramid plies consisting of at least four plies of ballistic material made from aramid fiber, said subset of polyethylene plies consisting of at least six plies of ballistic material made from polyethylene, a first one of said plies of said first subset and a first one of said plies of said second subset constituting the outer surface plies of said set of plies, each of the rest of said plies of each of said subsets having both first and second faces in full surface contact with a face of an adjacent ply, ballistic resistance being provided by a set of plies in face-to-face contact with each other in sequence from a first surface aramid ply through aramid plies, polyethylene plies and aramid plies to a second surface aramid ply.
Claim 11
Dependent Claim
178 words
A body armor set of ballistic material plies consisting essentially of: a first subset of aramid plies, a second subset of aramid plies, a subset of polyethylene plies, said subset of polyethylene plies being sandwiched between said first and second subsets of aramid plies, each of said subsets of aramid plies consisting of at least four plies of ballistic material made from aramid fiber, said subset of polyethylene plies consisting of at least six plies of ballistic material made from polyethylene, a first one of said plies of said first subset and a first one of said plies of said second subset constituting the outer surface plies of said set of plies, each of the rest of said plies of each of said subsets having both first and second faces in full surface contact with a face of an adjacent ply, ballistic resistance being provided by a set of plies in face-to-face contact with each other in sequence from a first surface aramid ply through aramid plies, polyethylene plies and aramid plies to a second surface aramid ply.
Claim 12
Dependent Claim
25 words
The body armor of claim 9 wherein the aramid plies in each of said first and second subsets of plies are sewn to one another.
Claim 13
Dependent Claim
27 words
The body armor of claim 10 having a shoulder region, all of said plies of all three of said subsets being sewn together in said shoulder region.
References Cited (Backward Citations)
US3891996A
Cited
US4287607A
Cited
US4413357A
Cited
US4510200A
Cited
US4483020A
Cited
US4497069A
Cited
US4608717A
Cited
US4623574A
Cited
US4879165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |