US4932800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finger gripping device
Assignee: Berol Corp
•
Filing: 1989-05-08
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Granted: 1990-06-12
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Expires: 2009-05-08
Abstract
Abstract A compressible finger gripping device for assembly with the surface portion of an article such as a writing instrument or a shaving instrument or the like. The device includes a substantially cylindrical body formed of a compressible, elastomeric material and defined by a substantially uniform OD and ID along the axial length of the body. A plurality of ribs arranged substantially parallel to the longitudinal axis of the body and substantially equidistantly spaced apart from each other are carried about the I.D. The combination of the selected compressible material, the selected I.D. and OD dimensions of the body and the selected number, depth and thickness of the ribs cooperate and converge to provide a compressibility index (CI) valve for the device between about 1000 to about 18,000 gms/cm.
Inventors
- 👤 Nan J. Lin
- 👤 Richard J. Petrillo
- 👤 John Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:24
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/52; B26B21/522; B43; B43K; B43K23/00; B43K23/004; G; G09; G09F; G09F23/00; G09F2023/0016
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
110 words
A compressible finger gripping device for assembly with a surface portion of an article used for finger manipulation of the article, said device comprising a substantially cylindrical body having a longitudinal axis and formed of a compressible, elastomeric material, said body being defined by a substantially uniform OD and ID along the axial length, a plurality of ribs of substantially uniform depth carried along the ID and arranged substantially parallel to the longitudinal axis and substantially equidistantly spaced apart from each other, the ratio of rib depth to rib thickness being between about 1:16 to about 3:4, said device having a CI value between about 1000 to about 18,000 gm/cm.
Claim 2
Dependent Claim
110 words
A compressible finger gripping device for assembly with a surface portion of an article used for finger manipulation of the article, said device comprising a substantially cylindrical body having a longitudinal axis and formed of a compressible, elastomeric material, said body being defined by a substantially uniform OD and ID along the axial length, a plurality of ribs of substantially uniform depth carried along the ID and arranged substantially parallel to the longitudinal axis and substantially equidistantly spaced apart from each other, the ratio of rib depth to rib thickness being between about 1:16 to about 3:4, said device having a CI value between about 1000 to about 18,000 gm/cm.
Claim 3
Dependent Claim
52 words
A device of claim 1 where said OD is between about 0.6 cm to about 3.0 cm, said ID is between about 0.3 cm to about 2.5 cm, and said ribs are spaced apart from each other by a distance substantially equivalent to between about one-third to about one-twelfth of the ID.
Claim 4
Dependent Claim
19 words
A device of claim 2 where the device has a CI value between about 3600 to about 16,000 gm/cm.
Claim 5
Dependent Claim
29 words
A device of claim 3 where the ribs are spaced apart from each other by a distance substantially equivalent to between about one-fifth to about one-ninth of the ID.
Claim 6
Dependent Claim
13 words
A device of claim 4 where the compressible material is a thermoplastic elastomer.
Claim 7
Dependent Claim
13 words
A device of claim 5 where the compressible material is a block copolymer.
Claim 8
Dependent Claim
25 words
A device of claim 6 where the ribs are spaced apart from each other by a distance substantially equivalent to about one-eighth of the ID.
Claim 9
Dependent Claim
116 words
A writing instrument including a compressible finger gripping device arranged on a surface portion of the instrument normally used for gripping by fingers of the user for manipulation of the instrument, said device comprising a substantially cylindrical body having a longitudinal axis and formed of a compressible, elastromeric material, said body being defined by a substantially uniform OD and ID along the axial length, a plurality of ribs carried about the ID and arranged substantially parallel to the longitudinal axis and substantially equidistantly spaced apart from each other, the ratio of rib depth to rib thickness being between about 1:16 to about 3:4, said device having a CI value between about 1000 to about 18,000 gm/cm.
Claim 10
Dependent Claim
116 words
A writing instrument including a compressible finger gripping device arranged on a surface portion of the instrument normally used for gripping by fingers of the user for manipulation of the instrument, said device comprising a substantially cylindrical body having a longitudinal axis and formed of a compressible, elastromeric material, said body being defined by a substantially uniform OD and ID along the axial length, a plurality of ribs carried about the ID and arranged substantially parallel to the longitudinal axis and substantially equidistantly spaced apart from each other, the ratio of rib depth to rib thickness being between about 1:16 to about 3:4, said device having a CI value between about 1000 to about 18,000 gm/cm.
Claim 11
Dependent Claim
55 words
A writing instrument of claim 8 where said OD of the device is between about 0.6 cm to about 3.0 cm, said ID is between about 0.3 cm to about 2.5 cm, said ribs are spaced apart from each other by a distance substantially equivalent to between about one-third to about one-twelfth of the ID.
Claim 12
Dependent Claim
20 words
A writing instrument of claim 9 where the device has a CI value between about 3600 to about 16,000 gm/cm.
Claim 13
Dependent Claim
33 words
A writing instrument of claim 10 where the ribs of the device are spaced apart from each other by a distance substantially equivalent to between about one-fifth to about one-ninth of the ID.
Claim 14
Dependent Claim
17 words
A writing instrument of claim 11 where the compressible material of the device is a thermoplastic elastomer.
Claim 15
Dependent Claim
14 words
A writing instrument of claim 12 where the compressible material is a block copolymer.
Claim 16
Dependent Claim
29 words
A writing instrument of claim 13 where the ribs of the device are spaced apart from each other by a distance substantially equivalent to about one-eighth of the ID.
References Cited (Backward Citations)
GB190303922A
Cited
US1291972A
Cited
US1598873A
Cited
US1807415A
Cited
DE546632C
Cited
US2173451A
Cited
US2180560A
Cited
US2236194A
Cited
US2594955A
Cited
US2759453A
Cited
US3269399A
Cited
DE2157175A1
Cited
US4035089A
Cited
US4167347A
Cited
US4601598A
Cited
WO1988000002A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |