US4073556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid mobile cabinet for audio-visual aids
Assignee: H WILSON CORP
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Filing: 1976-09-21
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Granted: 1978-02-14
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Expires: 1996-09-21
Abstract
Abstract A mobile utility cabinet for audio-visual aids, adaptable to house and transport video tape, recording, projection and like materials and equipment, and for use as a learning center, said cabinet having a plurality of removable and adjustable interior and exterior shelves and components, all supported by means formed integral with the walls of the cabinet and having vertically adjustable means for selectively supporting said audio-visual aids, the said cabinet being rigidly constructed and having means in its frame cooperating with said adjustable means to resist impact and damage during transport and storage.
Inventors
- 👤 Harry Howard Wilson, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:54
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/06; A47B57/16; A47B55/00; Y; Y10; Y10S; Y10S248/00; Y10S248/917
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
187 words
A mobile utility cabinet having an open front side, comprising a top wall, a back wall, a bottom wall, and spaced end walls, the latter having front and rear edges, a rigid frame connecting the lower portions of the end and back walls, said frame supporting the bottom wall, doors on the open front side of the cabinet, a top rail bridging the open front and connected at its ends to the end walls, said top rail supporting the front edge portion of said top wall, upstanding stringers one adjacent the front edge of each side wall, upstanding stringers one integral with each end of the back wall and disposed at right angles thereto to lie against the inside surface of the related side wall, all of said stringers being welded to the respective side walls, an inwardly turned flange on the rear edge of each side wall having surface contact with and being welded to the back side of the back wall, said flange and related stringer comprising a rigid post-like corner structure, and vertically spaced horizontally aligned shelf supporting means on each of said stringers.
Claim 2
Dependent Claim
187 words
A mobile utility cabinet having an open front side, comprising a top wall, a back wall, a bottom wall, and spaced end walls, the latter having front and rear edges, a rigid frame connecting the lower portions of the end and back walls, said frame supporting the bottom wall, doors on the open front side of the cabinet, a top rail bridging the open front and connected at its ends to the end walls, said top rail supporting the front edge portion of said top wall, upstanding stringers one adjacent the front edge of each side wall, upstanding stringers one integral with each end of the back wall and disposed at right angles thereto to lie against the inside surface of the related side wall, all of said stringers being welded to the respective side walls, an inwardly turned flange on the rear edge of each side wall having surface contact with and being welded to the back side of the back wall, said flange and related stringer comprising a rigid post-like corner structure, and vertically spaced horizontally aligned shelf supporting means on each of said stringers.
Claim 3
Dependent Claim
80 words
The mobile utility cabinet recited in claim 1, wherein an upstanding divider wall is provided within the cabinet in parallel relation to the end walls, said divider wall having a pair of stringers and shelf-supporting means on the stringers, one of said stringers and its shelf-supporting means being aligned with the end wall stringer and its shelf-supporting means, and the other one of said stringers and its shelf-supporting means being aligned with the back wall stringer and its shelf-supporting means.
Claim 4
Dependent Claim
26 words
The mobile utility cabinet recited in claim 2 wherein a shelf is connected to the shelf-supporting means on the divider wall and end and back walls.
Claim 5
Dependent Claim
36 words
The mobile utility cabinet recited in claim 3, wherein there is a depending flange on the top rail adapted to act as a stop for said doors when the doors are brought into cabinet closed position.
Claim 6
Dependent Claim
35 words
The mobile utility cabinet recited in claim 1, in which the top rail has a depending flange adapted to act as a stop for said doors when the doors are brought into cabinet closed position.
Claim 7
Dependent Claim
39 words
The mobile utility cabinet recited in claim 1, wherein said shelf means has a pair of like tongues and notches spaced along each edge of opposed sides, and the tongues and notches are adapted to engage the shelf-supporting means.
Claim 8
Dependent Claim
33 words
The mobile utility cabinet recited in claim 1, wherein castors are secured to the frame and each castor has a castor bracket, and the castor bracket has extensions disposed angularly to said frame.
Claim 9
Dependent Claim
26 words
The mobile utility cabinet recited in claim 2, in which the top rail has a depending tab for securing the divider wall upstanding in the cabinet.
Claim 10
Dependent Claim
36 words
The mobile utility cabinet recited in claim 6, wherein the notches adapted to engage the back wall shelf-supporting means are extended to permit rocking of the shelf in a vertical arc when engaging the shelf-supporting means.
Claim 11
Dependent Claim
20 words
The mobile utility cabinet recited in claim 7, wherein the frame is notched to lock the castor brackets in position.
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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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |