Patent US3758889A successfully refreshed from Google Patents.
US3758889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorbing safety helmet
Assignee: ERB Plastics Inc
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Filing: 1972-12-08
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Granted: 1973-09-18
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Expires: 1992-12-08
Abstract
Abstract A shock absorbing safety or protective helmet of the hard-hat type having a head engaging suspension system which is removably interconnectable in the helmet, incuding free crossed crown straps, a detachable size adjustable headband and nape strap, and a detachable soft pliable sweatband, the entire suspension system being mountable by suspension lugs at the free ends of the crossed straps, the lugs having lateral side shear pins and being slidably suspended in holders on the interior of the helmet shell, the lugs and shear pins serving to resiliently resist seating of the lugs in the holders and thereby increase absorption of impact shocks on the helmet.
Inventors
- 👤 W Erb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:59
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/14; A42B3/145
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
102 words
A shock absorbing safety helmet comprising: A. a shell; B. a head engaging suspension system removably interconnectable in the interior of said shell; C. attachment means for said suspension system including: i. holders in the interior of said shell; ii. suspension lugs on said suspension system engageable in said holders; iii. shear pins on side edges of said suspension lugs, normally spacing said suspension lugs above the bottoms of said holders; and iv. said suspension lugs and said shear pins resiliently resisting seating of said suspension lugs in said holders under impact shocks to the helmet and serving as impact shock absorbers.
Claim 2
Dependent Claim
102 words
A shock absorbing safety helmet comprising: A. a shell; B. a head engaging suspension system removably interconnectable in the interior of said shell; C. attachment means for said suspension system including: i. holders in the interior of said shell; ii. suspension lugs on said suspension system engageable in said holders; iii. shear pins on side edges of said suspension lugs, normally spacing said suspension lugs above the bottoms of said holders; and iv. said suspension lugs and said shear pins resiliently resisting seating of said suspension lugs in said holders under impact shocks to the helmet and serving as impact shock absorbers.
Claim 3
Dependent Claim
43 words
A shock absorbing safety helmet as claimed in claim 1, said suspension system including a plurality of free crossed straps, said suspension lugs being attached to the free ends of said straps, a headband, said suspension lugs being removably attachable to said headband.
Claim 4
Dependent Claim
15 words
A shock absorbing safety helmet as claimed in claim 2, said straps being nylon tapes.
Claim 5
Dependent Claim
64 words
A shock absorbing safety helmet as claimed in claim 2, said headband having upstanding lugs thereon, arms interconnecting at one end thereof with the ends of said straps and having a plurality of connector openings spacedly disposed therein, and an attachment lug on said legs for adjustably interconnecting said legs and said arms through coaction of said lug and connector openings for size adjustment.
Claim 6
Dependent Claim
51 words
A shock absorbing safety helmet as claimed in claim 4, said headband including a forward portion and a rear portion, said rear portion including overlapping relatively adjusting interconnecting free ends and said rear portion being configured and constituting a nape strap adapted for firmly engaging said helmet on a user''s head.
Claim 7
Dependent Claim
77 words
A shock absorbing safety helmet as claimed in claim 5, one said free end of said headband including a plurality of sets of holes therein, the other said free end including a plurality of spaced lugs interengageable in said holes for selective length adjustment of the headband size, said latter free end further including buckle means adapted for slidably engaging with the first said free end of said headband for maintaining adjusted interconnection between said free ends.
Claim 8
Dependent Claim
51 words
A shock absorbing safety helmet as claimed in claim 6, the forward portion of said headband having forwardly directed lugs thereon, a sweatband consisting of soft resilient material with openings therethrough and being engaged about said front portion of said headband with the openings removably attaching said sweatband to said headband.
Claim 9
Dependent Claim
77 words
A shock absorbing safety helmet aS claimed in claim 1, said holders being open ended restricted bottom slots, said suspension lugs being of resilient material and having a resilient frictional sliding fit in said holders, said shear pins extending from opposite side edges and spaced from the bottom edge of said lugs, said shear pins projecting beyond the interior side limits of said holders and normally maintaining said suspension lugs spaced above the bottoms of said holders.
Claim 10
Dependent Claim
52 words
A shock absorbing safety helmet as claimed in claim 2, said straps being three in number and said suspension constituting a six-point suspension with suspension lugs being attached to the six free ends of said straps and said holders being six in number and spaced about the inner periphery of said shell.
References Cited (Backward Citations)
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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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |