US4600247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing with a dust cover having a pivoted front
Assignee: US Philips Corp
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Filing: 1984-04-11
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Granted: 1986-07-15
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Expires: 2004-04-11
Abstract
Abstract The cover for an open front portion of a housing is slidable rearward to expose the open front portion, and has a pivotal front wall. The front wall has side walls connected to it, forming a front section, and is coupled to the housing and the rest of the cover such that the front section pivots to bring the front wall into a horizontal position during the first part of the rearward sliding movement.
Inventors
- 👤 Hermanus F. Einhaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:41
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/02; G11B33/027
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
325 words
The combination of a housing having opposed side walls, a bottom wall and an open upper side at a front portion of the housing between said side walls, and a dust cover slidable rearward from an open position to a closed position for closing said upper side, wherein said dust cover comprises a sliding section having a central upper portion and two side portions arranged so as to have an inverted U-shaped cross-section, said side portions adjoining the upper portion and having lower edges slidable on the housing near said side walls; and a pivotal front section connected to said sliding section, and in said closed position the front section is in an erect position relative to the bottom wall and closes the sliding section at the front; in said open position the sliding section is slid rearward and said front section is pivoted from said erect position such that at least a part of the front section is in a horizontal position substantially parallel to and adjacent said central upper portion, characterized in that the front section comprises a central front portion and two side portions, arranged to have a U-shaped cross-section, said side portions being slidable on the housing, said housing has two guide slots formed therein near front corners of the housing, extending substantially parallel to the direction of sliding of the front section, said slots having ends arranged to engage said front section side portions to control the pivotal movement of the front section, and the cover comprises coupling means for coupling the front section to the sliding section, arranged such that when said central front section is in said horizontal position the front section and sliding section are slidable over a limited distance with respect to each other in the direction of sliding movement of the sliding section, and slide together over at least a part of the sliding movement of the sliding section between the open and closed positions.
Claim 2
Dependent Claim
325 words
The combination of a housing having opposed side walls, a bottom wall and an open upper side at a front portion of the housing between said side walls, and a dust cover slidable rearward from an open position to a closed position for closing said upper side, wherein said dust cover comprises a sliding section having a central upper portion and two side portions arranged so as to have an inverted U-shaped cross-section, said side portions adjoining the upper portion and having lower edges slidable on the housing near said side walls; and a pivotal front section connected to said sliding section, and in said closed position the front section is in an erect position relative to the bottom wall and closes the sliding section at the front; in said open position the sliding section is slid rearward and said front section is pivoted from said erect position such that at least a part of the front section is in a horizontal position substantially parallel to and adjacent said central upper portion, characterized in that the front section comprises a central front portion and two side portions, arranged to have a U-shaped cross-section, said side portions being slidable on the housing, said housing has two guide slots formed therein near front corners of the housing, extending substantially parallel to the direction of sliding of the front section, said slots having ends arranged to engage said front section side portions to control the pivotal movement of the front section, and the cover comprises coupling means for coupling the front section to the sliding section, arranged such that when said central front section is in said horizontal position the front section and sliding section are slidable over a limited distance with respect to each other in the direction of sliding movement of the sliding section, and slide together over at least a part of the sliding movement of the sliding section between the open and closed positions.
Claim 3
Dependent Claim
79 words
A combination as claimed in claim 1, characterized in that said slots each have respective front and rear ends; each side portion of the front section comprises a tilting projection which, in the erect position of the central front portion, projects into a respective guide slot, and which, upon manual displacement of the front section, slides over the rear end of the respective guide slot to control the pivotal movement toward the horizontal position of the central front section.
Claim 4
Dependent Claim
89 words
A combination as claimed in claim 2, characterized in that the guide slot front ends each have a respective tilting projection; and in that the tilting projections at the front ends of the guide slots and the tilting projections on the side portions are so arranged that, during forward movement of the front section the tilting projections on the side portions abut and subsequently slide on the respective tilting projections at the front ends of the guide slots so as to pivot the front section towards the erect position.
Claim 5
Dependent Claim
59 words
A combination as claimed in claim 1, 2 or 3, characterized in that said coupling means comprises a front section coupling part and a sliding section coupling part which engage each other only when the front section is tilted such that the central front portion is in a position substantially parallel to the upper portion of the sliding section.
Claim 6
Dependent Claim
63 words
A combination as claimed in claim 4, characterized by comprising a grip disposed on the central front portion of the front section, said grip forming part of said coupling means and being disposed such that, when the central front portion is in the horizontal position, during rearward movement of the sliding section said grip abuts a front edge of the central upper portion.
Claim 7
Dependent Claim
105 words
A combination as claimed in claim 1, 2 or 3, characterized in that said side portions of the front section include projections which form part of the coupling means; and in that said side portions of the sliding section comprise edge portions which project toward the respective adjacent front section side portion, said projections and respective projective edge portions being arranged such that sliding forward movement of the front section, from its rearmost position, brings said projections on the front sections into engagement with said projecting edge portions so that further forward sliding movement of the front section causes the sliding section to slide forward.
Claim 8
Dependent Claim
63 words
A combination as claimed in claim 1, 2 or 3, characterized in that said coupling means comprises an arcuate slot formed in one of said sliding and front sections, and a pin on a side portion of the other of said sections, said pin engaging slidably in said slot, said pin and actuate slot also controlling the pivotal movement of the front section.
Claim 9
Dependent Claim
72 words
A combination as claimed in claim 7, characterized in that, viewed perpendicularly to said front section side portions, said front section side portions each have a substantially rhombic shape; and in that said front section side portions are so arranged that, when the central front portion is pivoted to be fully parallel to the central upper portion of the sliding section, the front section is situated almost wholly underneath the sliding section.
Claim 10
Dependent Claim
61 words
A combination as claimed in claim 8, in which the housing has a rear portion and a fixed cover covering said rear portion, characterized in that said side portions of the sliding section have a height such that, in the open position of the dust cover, the sliding section and the front section are situated almost wholly underneath the fixed cover.
Claim 11
Dependent Claim
31 words
A combination as claimed in claim 9, characterized in that said opposing side walls of the housing each have a ridge defining a slot for guiding at least said sliding section.
Claim 12
Dependent Claim
72 words
A combination as claimed in claim 4, characterized in that, viewed perpendicularly to said front section side portions, said front section side portions each have a substantially rhombic shape; and in that said front section side portions are so arranged that, when the central front portion is pivoted to be fully parallel to the central upper portion of the sliding section, the front section is situated almost wholly underneath the sliding section.
Claim 13
Dependent Claim
61 words
A combination as claimed in claim 11, in which the housing has a rear portion and a fixed cover covering said rear portion, characterized in that said side portions of the sliding section have a height such that, in the open position of the dust cover, the sliding section and the front section are situated almost wholly underneath the fixed cover.
Claim 14
Dependent Claim
72 words
A combination as claimed in claim 1, characterized in that, viewed perpendicularly to said front section side portions, said front section side portions each have a substantially rhombic shape; and in that said front section side portions are so arranged that, when the central front portion is pivoted to be fully parallel to the central upper portion of the sliding section, the front section is situated almost wholly underneath the sliding section.
Claim 15
Dependent Claim
61 words
A combination as claimed in claim 13, in which the housing has a rear portion and a fixed cover covering said rear portion, characterized in that said side portions of the sliding section have a height such that, in the open position of the dust cover, the sliding section and the front section are situated almost wholly underneath the fixed cover.
References Cited (Backward Citations)
US1330301A
Cited
US3782801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |