US4308782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated head of plastic sheet material and a synthetic fabric material having random fiber orientation
Assignee: Remo Inc
•
Filing: 1979-10-04
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Granted: 1982-01-05
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Expires: 1999-10-04
Abstract
Abstract A head for a drum or similar musical instrument comprising a synthetic plastic sheet material and a synthetic fabric material having a random fiber orientation which is laminated thereto. The synthetic plastic sheet material remains the primary tension load carrier while the fabric material having nonorientated fibers is laminated thereto to distribute load without transferring stress into the plastic sheet material, thereby reducing the tendency of the plastic sheet material to dent as well as damping undesirable overtones, and to provide an improved brush surface. The synthetic fabric material is preferably impregnated with a water-based resin emulsion system to insure that the nonorientated individual fibers are elastomerically bonded together, thereby increasing the fabric materials' intralaminar integrity and to further enhance the tone quality of the laminated head. Lamination and impregnation in this manner provides a laminated head having an improved sound by increasing resonance and projection with a reduction of harmonic dissonance and provides a playing surface having improved brush response, thereby also resulting in improved brush sound.
Inventors
- 👤 Donald R. Hartry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:15
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B7/00; B32B7/04; B32B7/12; G; G10; G10D; G10D13/00; G10D13/01; G10D13/02; G10D13/10; G10D13/20; B32B2260/00; B32B2260/02; B32B2260/021; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/518; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/21; Y10T428/214; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24959; Y10T428/24967; Y10T442/00; Y10T442/60; Y10T442/674; Y10T442/681
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
36 words
A head for a drum or similar musical instrument comprising a synthetic plastic sheet material laminated to a synthetic fabric material having a random fiber orientation, the plastic sheet material forming the primary tension load carrier.
Claim 2
Dependent Claim
36 words
A head for a drum or similar musical instrument comprising a synthetic plastic sheet material laminated to a synthetic fabric material having a random fiber orientation, the plastic sheet material forming the primary tension load carrier.
Claim 3
Dependent Claim
27 words
A head as in claim 1 wherein the synthetic plastic sheet material is a biaxially oriented film of the condensation polymer of ethylene glycol and terephthalic acid.
Claim 4
Dependent Claim
14 words
A head as in claim 1 wherein the fabric material is a spunbonded olefin.
Claim 5
Dependent Claim
16 words
A head as in claim 1 wherein the synthetic fabric material is a high density polyethylene.
Claim 6
Dependent Claim
19 words
A head as in claim 1 wherein the fabric material is impregnated to elastomerically bond the individual fibers together.
Claim 7
Dependent Claim
21 words
A head as in claim 1 wherein the plastic sheet material has a thickness from about 0.005 to about 0.014 inch.
Claim 8
Dependent Claim
23 words
A head as in claim 1 wherein the fabric material has a weight from about 1.3 to about 1.6 ounces per square yard.
Claim 9
Dependent Claim
35 words
A head as in claim 1 wherein the fabric material distributes the force of impact from an object which strikes the head, thereby reducing deformation of the synthetic plastic sheet material and damping undesirable overtones.
Claim 10
Dependent Claim
22 words
A head as in claim 1 wherein an elastomeric high density polyolefin adhesive laminates the plastic sheet material to the fabric material.
Claim 11
Dependent Claim
90 words
A head for a drum or similar musical instrument comprising a sheet of a biaxially oriented film of the condensation polymer of ethylene glycol and terephthalic acid laminated to a layer of a high density polyethylene fabric material having random fiber orientation, the biaxially oriented film forming the primary tension load carrier and the polyethylene fabric material distributing load from an object which strikes the surface of the head without transferring stress to the biaxially oriented film and wherein the polyethylene fabric is impregnated to elastomerically bond individual fibers together.
Claim 12
Dependent Claim
90 words
A head for a drum or similar musical instrument comprising a sheet of a biaxially oriented film of the condensation polymer of ethylene glycol and terephthalic acid laminated to a layer of a high density polyethylene fabric material having random fiber orientation, the biaxially oriented film forming the primary tension load carrier and the polyethylene fabric material distributing load from an object which strikes the surface of the head without transferring stress to the biaxially oriented film and wherein the polyethylene fabric is impregnated to elastomerically bond individual fibers together.
Claim 13
Dependent Claim
21 words
A head as in claim 10 wherein the biaxially oriented film has a thickness from about 0.005 to about 0.014 inch.
Claim 14
Dependent Claim
24 words
A head as in claim 10 wherein the polyethylene fabric material has a weight from about 1.3 to about 1.6 ounces per square yard.
Claim 15
Dependent Claim
18 words
A head as in claim 10 wherein the polyethylene fabric material is impregnated with a water-based emulsion system.
Claim 16
Dependent Claim
23 words
A head as in claim 10 wherein an elastomeric high density polyolefin adhesive laminates the biaxially oriented film to the polyethylene fabric material.
Claim 17
Dependent Claim
26 words
A head as in claims 9 or 14 wherein the elastomeric high density polyolefin adhesive has a thickness ranging from about 0.001 to about 0.006 inch.
Claim 18
Dependent Claim
138 words
A head for a drum or similar musical instrument comprising a sheet having a thickness from about 0.005 to about 0.014 inch of a biaxially oriented film of the condensation polymer of ethylene glycol and terephthalic acid laminated to a layer of a high density polyethylene fabric material having random fiber orientation and having a weight from about 1.3 to about 1.6 ounces per square yard, the biaxially oriented film forming the primary tension load carrier and the polyethylene fabric material distributing load from an object which strikes the surface of the head without transferring stress into the biaxially oriented film, an elastomeric high density polyolefin adhesive having a thickness ranging from about 0.001 to about 0.006 inch laminating the film to the fabric, and the polyethylene fabric material being impregnated to elastomerically bond the individual fibers together.
Claim 19
Dependent Claim
138 words
A head for a drum or similar musical instrument comprising a sheet having a thickness from about 0.005 to about 0.014 inch of a biaxially oriented film of the condensation polymer of ethylene glycol and terephthalic acid laminated to a layer of a high density polyethylene fabric material having random fiber orientation and having a weight from about 1.3 to about 1.6 ounces per square yard, the biaxially oriented film forming the primary tension load carrier and the polyethylene fabric material distributing load from an object which strikes the surface of the head without transferring stress into the biaxially oriented film, an elastomeric high density polyolefin adhesive having a thickness ranging from about 0.001 to about 0.006 inch laminating the film to the fabric, and the polyethylene fabric material being impregnated to elastomerically bond the individual fibers together.
Claim 20
Dependent Claim
92 words
A head for a drum or similar musical instrument comprising a sheet of biaxially oriented film of the condensation polymer of ethylene glycol and terephthalic acid laminated to a layer of a spun bonded olefin fabric material having random fiber orientation, the biaxially oriented film forming the primary tension load carrier and the spun bonded olefin fabric material distributing load from an object which strikes the surface of the head without transferring stress into the biaxially oriented film, said spun bonded olefin fabric material being impregnated to elastomerically bond individual fibers together.
Claim 21
Dependent Claim
92 words
A head for a drum or similar musical instrument comprising a sheet of biaxially oriented film of the condensation polymer of ethylene glycol and terephthalic acid laminated to a layer of a spun bonded olefin fabric material having random fiber orientation, the biaxially oriented film forming the primary tension load carrier and the spun bonded olefin fabric material distributing load from an object which strikes the surface of the head without transferring stress into the biaxially oriented film, said spun bonded olefin fabric material being impregnated to elastomerically bond individual fibers together.
Claim 22
Dependent Claim
21 words
A head as in claim 17 wherein the biaxially oriented film has a thickness from about 0.005 to about 0.014 inches.
Claim 23
Dependent Claim
26 words
A head as in claim 17 wherein the spun bonded olefin fabric material has a weight from about 1.3 to about 1.6 ounces per square yard.
Claim 24
Dependent Claim
20 words
A head as in claim 17 wherein the spun bonded olefin fabric material is impregnated with a water-based emulsion system.
Claim 25
Dependent Claim
25 words
A head as in claim 17 wherein an elastromeric high density polyolefin adhesive laminates the biaxially oriented film to the spun bonded olefin fabric material.
Claim 26
Dependent Claim
24 words
A head as in claim 21 wherein the elastromeric high density polyolefin adhesive has a thickness ranging from about 0.001 to about 0.006 inch.
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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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |