US3900778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Archery target mats of staggered corrugated plastic
Assignee: Brunswick Corp
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Filing: 1973-12-07
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Granted: 1975-08-19
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Expires: 1993-12-07
Abstract
Abstract An improved target mat for projectiles comprising a roll of fluted corrugated material. The fluted material has a first corrugated sheet and a second flat sheet secured to the corrugated sheet to define a corrugated layer. This layer is spirally wound whereby layers of corrugations are superimposed to define the roll. Each corrugation has a cross-section such that the projectile can fit therein only by stretching the corrugation. This is made possible because the sheet of corrugated material has a plurality of longitudinally extending rows of staggered corrugations with the individual rows being corrugated along their lengths.
Inventors
- 👤 Ralph C Bruner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:20
CPC Classifications
F; F41; F41J; F41J13/00; F41J3/00; F41J3/0004
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
159 words
A target mat for projectile comprising: a roll of fluted corrugated material, the roll having a core portion, the corrugated material comprising a first flat sheet of material adhered to a second sheet of corrugated material, the first and second sheets having side edges, the corrugated material comprising a plurality of longitudinally extending rows of staggered corrugations along the thickness of the corrugated material, with adjacent corrugations having common boundaries, the corrugations in each row staggered relative to the corrugations in any adjacent row, wherein each corrugation has a cross section such that the projectile of a given diameter can fit therein only by stretching and deforming the corrugation, the corrugated material being spirally bound in the roll, whereby layers of corrugations are superimposed one over the other, means to fasten the layers together to prevent their coming apart, and the side edges of the first and second sheets of the roll defining the target mat surface and back.
Claim 2
Dependent Claim
159 words
A target mat for projectile comprising: a roll of fluted corrugated material, the roll having a core portion, the corrugated material comprising a first flat sheet of material adhered to a second sheet of corrugated material, the first and second sheets having side edges, the corrugated material comprising a plurality of longitudinally extending rows of staggered corrugations along the thickness of the corrugated material, with adjacent corrugations having common boundaries, the corrugations in each row staggered relative to the corrugations in any adjacent row, wherein each corrugation has a cross section such that the projectile of a given diameter can fit therein only by stretching and deforming the corrugation, the corrugated material being spirally bound in the roll, whereby layers of corrugations are superimposed one over the other, means to fasten the layers together to prevent their coming apart, and the side edges of the first and second sheets of the roll defining the target mat surface and back.
Claim 3
Dependent Claim
16 words
The target mat as recited in claim 1, wherein the roll is made of thermoplastic material.
Claim 4
Dependent Claim
19 words
The combination of claim 2, wherein the thermoplastic material is selected from the group consisting of polyolefines and nylon.
Claim 5
Dependent Claim
30 words
The combination of claim 3, wherein the core or center portion of the roll is a cylinder of relatively small diameter comprising compacted fibers extending in a generally axial direction.
Claim 6
Dependent Claim
11 words
The combination of claim 4, wherein the corrugations have open ends.
Claim 7
Dependent Claim
10 words
The combination of claim 5, wherein the core is replaceable.
Claim 8
Dependent Claim
11 words
The combination of claim 4, wheRein the corrugations have closed ends.
Claim 9
Dependent Claim
10 words
The combination of claim 7, wherein the core is replaceable.
Claim 10
Dependent Claim
36 words
The target mat of claim 1, wherein the longitudinally extending rows have transverse corrugations which are transverse to the path of the projectile and which transverse corrugations in different rows are in line with each other.
Claim 11
Dependent Claim
42 words
The combination of claim 9, wherein the roll is made of a material selected from the group consisting of polyolefines and nylon, and wherein the core is a cylinder of relatively small diameter comprising compacted fibers extending in a generally axial direction.
Claim 12
Dependent Claim
10 words
The combination of claim 10, wherein the core is replaceable.
Claim 13
Dependent Claim
13 words
The target mat of claim 1, wherein the staggered corrugations have open ends.
Claim 14
Dependent Claim
12 words
The target mat of claim 1, wherein the corrugations have open ends.
Claim 15
Dependent Claim
116 words
An improved target mat for projectiles having a rol of fluted corrugated material, the fluted material comprising a first flat sheet material adhered to a second sheet of corrugated material to define a corrugated layer, with the corrugated layer being spirally wound whereby layers of corrugations are superimposed to define the roll, the spiral layers fastened at intermittent poins to prevent them from coming apart, each corrugation having a cross-section such that the projectile can fit therein only by stretching the corrugation, the improvement comprising: a plurality of longitudinally extending rows of staggered corrugations along the thickness of the corrugated material with adjacent corrugations having common boundaries and the individual rows are corrugated along their lengths.
Claim 16
Dependent Claim
116 words
An improved target mat for projectiles having a rol of fluted corrugated material, the fluted material comprising a first flat sheet material adhered to a second sheet of corrugated material to define a corrugated layer, with the corrugated layer being spirally wound whereby layers of corrugations are superimposed to define the roll, the spiral layers fastened at intermittent poins to prevent them from coming apart, each corrugation having a cross-section such that the projectile can fit therein only by stretching the corrugation, the improvement comprising: a plurality of longitudinally extending rows of staggered corrugations along the thickness of the corrugated material with adjacent corrugations having common boundaries and the individual rows are corrugated along their lengths.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |