US3822083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter case
Assignee: SCM Corp
•
Filing: 1973-02-08
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Granted: 1974-07-02
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Expires: 1993-02-08
Abstract
Abstract A double-walled thermoplastic case for a typewriter is provided that prevents damage to the typewriter during transportation and storage. The inner walls of the cover and base are formed to resiliently clamp the typewriter between them. The resilient faces of steps projecting from the inner wall of the base position the typewriter and restrain it against lateral movement and the resilient faces of the inner wall above the steps restrain the typewriter against lateral movement if the steps should be overridden. Resilient feet depending from the inner wall of the cover restrain the keyboard of the typewriter against upward movement and depressions in the inner wall that are nearly in contact with the outer wall resiliently limit the upward movement permitted by the depending feet. In a second embodiment of the invention that is used with a typewriter having a rugged keyboard, the depressions in the inner wall are in contact with the outer wall.
Inventors
- 👤 A Zeamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:59
CPC Classifications
B; B41; B41J; B41J29/00; B41J29/12; B41J29/13; A; A45; A45C; A45C5/00; A45C5/03
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
An improved thermoplastic carrying case for a typewriter having four bottom corners and a top deck, the thermoplastic carrying case having a base with an inner wall and an outer wall, a cover with an inner wall and an outer wall, a hinge between the base and the cover, means for latching the cover to the base, and a handle, wherein the improvement comprises: a. four L-shaped steps integral with and projecting from the inner wall of the base, the four L-shaped steps having lower faces for mating with the four bottom corners of the typewriter when the typewriter is in the thermoplastic carrying case to resiliently restrain the typewriter against lateral movement if the lower faces should be overridden, and b. at least one shoulder integral with and depending from the inner wall of the cover for pressing against the top deck of the typewriter when the typewriter is in the thermoplastic carrying case and the cover is closed to resiliently clamp the typewriter between the inner wall of the cover and the inner wall of the base.
Claim 2
Dependent Claim
179 words
An improved thermoplastic carrying case for a typewriter having four bottom corners and a top deck, the thermoplastic carrying case having a base with an inner wall and an outer wall, a cover with an inner wall and an outer wall, a hinge between the base and the cover, means for latching the cover to the base, and a handle, wherein the improvement comprises: a. four L-shaped steps integral with and projecting from the inner wall of the base, the four L-shaped steps having lower faces for mating with the four bottom corners of the typewriter when the typewriter is in the thermoplastic carrying case to resiliently restrain the typewriter against lateral movement if the lower faces should be overridden, and b. at least one shoulder integral with and depending from the inner wall of the cover for pressing against the top deck of the typewriter when the typewriter is in the thermoplastic carrying case and the cover is closed to resiliently clamp the typewriter between the inner wall of the cover and the inner wall of the base.
Claim 3
Dependent Claim
72 words
The thermoplastic carrying case of claim 1, the typewriter having a keyboard with two front corners, the thermoplastic carrying case further comprising: c. two feet integral with and depending from the inner wall of the cover for opposing the two front corners of the keyboard of the typewriter when the typewriter is in the thermoplastic carrying case and the cover is closed to resiliently restrain movement of the keyboard toward the cover.
Claim 4
Dependent Claim
65 words
The thermoplastic carrying case of claim 2, further comprising: d. first depressions formed in the inner wall of the cover adjacent to the feet and nearly contacting the outer wall of the cover to resiliently stop movement of the keyboard toward the cover when the typewriter is in the thermoplastic carrying case and the cover is closed by contacting the outer wall of the cover.
Claim 5
Dependent Claim
20 words
The thermoplastic carrying case of claim 3, in which the first depressions normally contact the outer wall of the cover.
Claim 6
Dependent Claim
41 words
The thermoplastic carrying case of claim 3, further comprising: e. a second depression formed in the inner wall of the cover adjacent to each shoulder and contacting the outer wall of the cover to increase rigidity of the thermoplastic carrying case.
Claim 7
Dependent Claim
66 words
The thermoplastic carrying case of claim 5, further comprising: f. at least one, third depression formed in the inner wall of the cover and contacting the outer wall of the cover to increase rigidity of the cover and g. at least one, fourth depression formed in the inner wall of the base and contacting the outer wall of the base to increase rigidity of the base.
Claim 8
Dependent Claim
85 words
The thermoplastic carrying case of claim 6, the typewriter having a carriage and in which the upper faces of the L-shaped steps at the rear of the thermoplastic carrying case are set back less than the other upper faces of the L-shaped steps so that the carriage of the typewriter will clear the inner wall of the cover when the cover is closed and the typewriter comes into contact with the upper faces of the L-shaped steps at the rear of the thermoplastic carrying case.
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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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |