Patent US4587676A successfully refreshed from Google Patents.
US4587676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible protecting helmet
Assignee: Individual
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Filing: 1984-01-06
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Granted: 1986-05-13
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Expires: 2004-01-06
Abstract
Abstract A collapsible protecting helmet with inside stuffing and closing and fastening, including two supplemental portions, one top portion and one lower portion, both of these portions are mutually joined at two pivot points and make up the collapsible protecting helmet, engagement component to secure the engaged position the two top and lower portions being dimensioned such as to allow both portions to rotate about the rotating points and engage one inside the other in a folded position.
Inventors
- 👤 Maria A. S. Estadella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:30
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/32; A42B3/322
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
116 words
A collapsible protecting helmet comprising: a body including a first portion and a second portion, said portions abutting along a first line which is substantially parallel to a line which defines the bottom perimeter of the helmet, said portions being pivotable relative to one another between an unfolded position in which they engage one another substantially in the region of said first line, and a folded position in which said first portion is at least partially concealed in said second portion; pivot means pivotably connecting said portions to each other; and engagement means securing said first and second portion with each other in said unfolded position, said engagement means being formed as push-button operated spring-biased means.
Claim 2
Dependent Claim
116 words
A collapsible protecting helmet comprising: a body including a first portion and a second portion, said portions abutting along a first line which is substantially parallel to a line which defines the bottom perimeter of the helmet, said portions being pivotable relative to one another between an unfolded position in which they engage one another substantially in the region of said first line, and a folded position in which said first portion is at least partially concealed in said second portion; pivot means pivotably connecting said portions to each other; and engagement means securing said first and second portion with each other in said unfolded position, said engagement means being formed as push-button operated spring-biased means.
Claim 3
Dependent Claim
23 words
The helmet as defined in claim 1, wherein said first portion is a top portion and said second portion is a bottom portion.
Claim 4
Dependent Claim
23 words
The helmet as defined in claim 1, wherein said first portion is a bottom portion and said second portion is a top portion.
Claim 5
Dependent Claim
16 words
The helmet as defined in claim 1, wherein said pivot means includes two pivoted rotating points.
Claim 6
Dependent Claim
27 words
The helmet as defined in claim 4, wherein said two pivot points are laterally disposed on the helmet and mutually opposed to and coaxial with each other.
Claim 7
Dependent Claim
55 words
The helmet as defined in claim 1, wherein said first and second portions have external surfaces, said engagement means including a resilient engagement having a biasing spring and disposed substantially at said parallel-like line of said external surfaces of said first and second portions and is push button releasable by means of said biasing spring.
Claim 8
Dependent Claim
21 words
The helmet as defined in claim 1, wherein said first and second portions have profiled edges that interlock with each other.
Claim 9
Dependent Claim
27 words
The helmet as defined in claim 7, wherein one of said profiled edges is a tongue and the other one of said profiled edges is a groove.
Claim 10
Dependent Claim
19 words
The helmet as defined in claim 1, wherein said first and second portions have profiled edges that are stepped.
Claim 11
Dependent Claim
30 words
The helmet as defined in claim 1, wherein said first and second portions have inner sides with fillets disposed substantially at said first line so as to achieve better balance.
Claim 12
Dependent Claim
20 words
The helmet as defined in claim 1, further comprising a visor, suitable internal stuffing means, safety equipment and fastening equipment.
Claim 13
Dependent Claim
19 words
The helmet as defined in claim 2, wherein said first portion engages said second portion in said folded position.
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) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |