US3722764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Head load balancer
Assignee: Individual
•
Filing: 1971-06-22
•
Granted: 1973-03-27
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Expires: 1991-06-22
Abstract
Abstract A head load balancer to be worn on the top of the head and including a load support having head engaging means automatically conforming fairly rigidly to the shape of the top of the wearer''s head without any mechanical internal mechanism adjustment. The head engaging means comprises a plurality of circumferentially spaced elements engageable with the top of the wearer''s head at circumferentially spaced points pivotally moveable independently of each other and yet flexibly interconnected and having substantial relative movement to each other so as to automatically conform to the wearer''s head.
Inventors
- 👤 J Kallander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:05
CPC Classifications
A; A45; A45F; A45F5/00; A45F5/12; A63; A63B; A63B23/00; A63B23/025; A63B2208/00; A63B2208/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
A head load balancing device comprising; a. a plurality of relatively rigid elements having terminal ends in a common plane, each having a relatively flat or slightly concave base adapted for releasable engagement with the top portion of a person''s head and an elevated portion spaced from said base providing a relatively point-load contact with said load and adapted for releasable engagement with said load; and b. means flexibly attaching said rigid elements to one another selectively restraining separation of said elements to a predetermined limit. c. said rigid elements and said means attaching said rigid elements are constructed integrally one with another wherein the base of said means forms the base of said elements; and d. said means is a flexible sheet material of concave shape
Claim 2
Dependent Claim
127 words
A head load balancing device comprising; a. a plurality of relatively rigid elements having terminal ends in a common plane, each having a relatively flat or slightly concave base adapted for releasable engagement with the top portion of a person''s head and an elevated portion spaced from said base providing a relatively point-load contact with said load and adapted for releasable engagement with said load; and b. means flexibly attaching said rigid elements to one another selectively restraining separation of said elements to a predetermined limit. c. said rigid elements and said means attaching said rigid elements are constructed integrally one with another wherein the base of said means forms the base of said elements; and d. said means is a flexible sheet material of concave shape
Claim 3
Dependent Claim
19 words
A head load balancing device as described in claim 1 comprising: a. said means is formed with opening therein.
Claim 4
Dependent Claim
26 words
A head load balancing device as described in claim 1 comprising: a. said rigid elements are constructed from a material substantially more rigid than said means.
Claim 5
Dependent Claim
31 words
A head load balancing device as described in claim 1 comprising: a. a rigid load platform pivotally connected to said means adapted for interposition between said rigid elements and said load.
Claim 6
Dependent Claim
21 words
A head load balancing device as described in claim 1 comprising: a. said means being formed with a substantial opening therein.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |