Patent US3774952A successfully refreshed from Google Patents.
US3774952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum bumper construction
Assignee: Chemplate Corp
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Filing: 1972-07-10
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Granted: 1973-11-27
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Expires: 1992-07-10
Abstract
Abstract A one-piece bumper assembly for attachment to the rear portion of vehicles comprising a generally vertically extending and concavely shaped face sharply curved to merge with a grooved horizontal step, the free edge of said step being formed so as to optionally receive a generally vertical kickplate, a plurality of ribs integrally formed with and extending longitudinally along the length of, the rear of said bumper face, two of said ribs forming a T-shaped longitudinal slot, in and along which bolts are slidably adjustable for attachment to brackets. These brackets extend from the rear frame of the vehicle and the bumper is attached thereto by means of said slidably adjustable bolts. The bumper is thereby readily fastened to the rear frame of the vehicle regardless of the distance of the brackets from each other. A first aperture is provided substantially in the center of said horizontal step, to accommodate a hitch ball, the threaded stem of which passes through said first aperture. An angularly shaped hitch bracket, having an aperture therein, is securely attached to the underside of the bumper so that the aperture coincides with said first aperture. The hitch bracket is bolted to the underside of the bumper by means of a bolt slidably adjustable in said T-shaped slot.
Inventors
- 👤 E Zorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:29
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/01; B60D1/06; B60R; B60R19/00; B60R19/02; B60R19/48
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
87 words
In a one-piece metal bumper assembly having a generally vertically extending bumper face merging into a generally horizontal portion, the improvement which comprises: an integrally formed fastener slot, extending substantially along the rear of said bumper face, a plurality of fasteners retained against axial withdrawal within said fastener slot, and being slidably adjustable therealong to a desired position, and locking meanfor said fasteners, said bumper assembly being adapted to be readily affixed to brackets by means of said slidably adjustable fasteners and locking means for said fasteners.
Claim 2
Dependent Claim
87 words
In a one-piece metal bumper assembly having a generally vertically extending bumper face merging into a generally horizontal portion, the improvement which comprises: an integrally formed fastener slot, extending substantially along the rear of said bumper face, a plurality of fasteners retained against axial withdrawal within said fastener slot, and being slidably adjustable therealong to a desired position, and locking meanfor said fasteners, said bumper assembly being adapted to be readily affixed to brackets by means of said slidably adjustable fasteners and locking means for said fasteners.
Claim 3
Dependent Claim
15 words
The metal bumper assembly of claim 1 wherein said fastener slot is T-shaped, in cross-section.
Claim 4
Dependent Claim
23 words
The metal bumper assembly of claim 1 wherein said horizontal portion is of sufficient width to provide a step for said bumper assembly.
Claim 5
Dependent Claim
22 words
The metal bumper assembly of claim 1 wherein said fastener slot is T-shaped, in cross section and said fasteners are headed bolts.
Claim 6
Dependent Claim
19 words
The metal bumper assembly of claim 4 wherein said horizontal portion is grooved along a majority of its length.
Claim 7
Dependent Claim
30 words
The metal bumper assembly of claim 1 wherein said fastener slot is formed by a pair of walls which are of substantial thickness to provide substantial bukling resistance to impact.
Claim 8
Dependent Claim
16 words
The metal bumper assembly of claim 1 wherein a hitch ball is affixed to said bumper.
Claim 9
Dependent Claim
61 words
The metal bumper assembly of claim 1 whrein a hitch ball is affixed to said bumper by means of a metal hitch bracket and said hitch bracket is fixedly mounted to said fastener slot of said bumper face by means of a plurality of said fasteners whereby the towing load exerted on said hitch bracket is transmitted to said fastener slot.
Claim 10
Dependent Claim
47 words
The metal bumper assembly of claim 8 wherein said metal of said bumper assembly is extruded aluminum and the metal of said hitch bracket is steel. 10, The metal bumper assembly of claim 1 wherein end cover plates are secured to the ends of said bumper assembly.
Claim 11
Dependent Claim
14 words
THe metal bumper assembly of claim 1 wherein said bumper face is generally concave.
Claim 12
Dependent Claim
125 words
A one piece extruded aluminum bumper assembly, for attachment to a vehicle frame, which comprises: a bumper having a generally vertically extending face, the upper edge of which merges into a generally horizontal grooved step portion; an integrally formed T-shaped slot formed on the rear of said bumper face, and extending substantially along the entire rear of said bumper face, said slot being formed by thickened aluminum walls; a plurality of headed bolts housed within said T-shaped slot, said bolts being slidably adjustable within said T-shaped slot to a desired position; locking means for each of said bolts, said bumper assembly being adapted to be readily affixed to brackets on said vehilce frame by means of said slidably adjustable bolts and said locking means therefor.
Claim 13
Dependent Claim
125 words
A one piece extruded aluminum bumper assembly, for attachment to a vehicle frame, which comprises: a bumper having a generally vertically extending face, the upper edge of which merges into a generally horizontal grooved step portion; an integrally formed T-shaped slot formed on the rear of said bumper face, and extending substantially along the entire rear of said bumper face, said slot being formed by thickened aluminum walls; a plurality of headed bolts housed within said T-shaped slot, said bolts being slidably adjustable within said T-shaped slot to a desired position; locking means for each of said bolts, said bumper assembly being adapted to be readily affixed to brackets on said vehilce frame by means of said slidably adjustable bolts and said locking means therefor.
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |