US5765922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable combination chair
Assignee: MTS Products
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Filing: 1997-01-27
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Granted: 1998-06-16
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Expires: 2017-01-27
Abstract
Abstract A portable combination chair includes a seat member having a back slot, a left slot and a right slot, a back supporting member having a left connecting wing and a right connecting wing protruded at the two bottom side thereof, a right arm resting member having a rear slot, and a left arm resting member also having a rear slot. The back supporting member is assembled with the left and right arm resting members by inserting the left and right connecting wings through the two rear slots of the left and right arm resting members respectively, in which the bottom side of each connecting wing has a connecting groove indented thereon for engaging with the two rear slots of the left and right arm resting members. The seat member is assembled by inserting the back supporting member and the left and right arm resting members through the back slot, the left slot and the right slot respectively until a bottom surface of the seat member is rested on at least a supporting shoulder formed on the left and the right arm resting member. Thereby, the portable combination chair can help developing the creativity of the children and provide a stable and tightly constructed chair which can be disassembled and reassembled without affecting the desire connection strength.
Inventors
- 👤 Ben M. Hsia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:10
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/02; A47C4/021; A47C3/00; A47C3/02; A47C3/029; A47C4/03
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
478 words
A portable combination chair, comprising a seat member having an elongate back slot provided at a back side disassembling edge thereof, an elongated left slot and an elongated right slot provided at a left side edge and a right side edge of said seat member respectively; a back supporting member which has an upper back supporting portion and a lower connecting portion extending downwards from said upper back supporting portion, said lower connecting portion having a left and a right connecting wing integrally extended downwardly and outwardly therefrom respectively, said upper back supporting portion having a width and a thickness slightly smaller than a length and a width of said back slot of said seat member respectively, wherein said left and right connecting wings of said lower connecting portion are protruded outwardly from a left side edge and a right side edge of said upper back supporting portion respectively, said left connecting wing having a left connecting groove, which has a predetermined depth and a predetermined width, indented at a bottom end of said left connecting wing and said right connecting wing also having a right connecting groove, which has a predetermined depth and a predetermined width, indented at a bottom end of said right connecting wing; and a pair of left arm resting member and right arm resting member, each of which has an upper arm resting portion extending upwardly, which has a narrowed width defining a front supporting shoulder and a rear supporting shoulder extending frontwardly and rearwardly from a front side and a rear side of said upper arm resting portion respectively, wherein said width of said left and right upper arm resting portions is smaller than a length of said left and said right slot of said seat member respectively, each of said left and right arm resting members further having a rear slot, which has a length longer than a height of said left and said right wing respectively, adapted for enabling said left and right wings to pass through respectively; so that said back supporting member is capable of locking with said left arm resting member and said right arm resting member by downwardly engaging said two connecting grooves of said two connecting wings respectively with a bottom end portion of said rear slot of said left arm resting member and a bottom end portion of said rear slot of said right arm resting member respectively, moreover, said seat member is assembled by inserting said upper back supporting portion of said back supporting member and said upper arm resting portions of said left and right arm resting members through said back slot and said left and right slots of said seat member respectively until a bottom surface of said seat member is rested on said front supporting shoulders and said rear supporting shoulders of said left and right arm resting members respectively.
Claim 2
Dependent Claim
478 words
A portable combination chair, comprising a seat member having an elongate back slot provided at a back side disassembling edge thereof, an elongated left slot and an elongated right slot provided at a left side edge and a right side edge of said seat member respectively; a back supporting member which has an upper back supporting portion and a lower connecting portion extending downwards from said upper back supporting portion, said lower connecting portion having a left and a right connecting wing integrally extended downwardly and outwardly therefrom respectively, said upper back supporting portion having a width and a thickness slightly smaller than a length and a width of said back slot of said seat member respectively, wherein said left and right connecting wings of said lower connecting portion are protruded outwardly from a left side edge and a right side edge of said upper back supporting portion respectively, said left connecting wing having a left connecting groove, which has a predetermined depth and a predetermined width, indented at a bottom end of said left connecting wing and said right connecting wing also having a right connecting groove, which has a predetermined depth and a predetermined width, indented at a bottom end of said right connecting wing; and a pair of left arm resting member and right arm resting member, each of which has an upper arm resting portion extending upwardly, which has a narrowed width defining a front supporting shoulder and a rear supporting shoulder extending frontwardly and rearwardly from a front side and a rear side of said upper arm resting portion respectively, wherein said width of said left and right upper arm resting portions is smaller than a length of said left and said right slot of said seat member respectively, each of said left and right arm resting members further having a rear slot, which has a length longer than a height of said left and said right wing respectively, adapted for enabling said left and right wings to pass through respectively; so that said back supporting member is capable of locking with said left arm resting member and said right arm resting member by downwardly engaging said two connecting grooves of said two connecting wings respectively with a bottom end portion of said rear slot of said left arm resting member and a bottom end portion of said rear slot of said right arm resting member respectively, moreover, said seat member is assembled by inserting said upper back supporting portion of said back supporting member and said upper arm resting portions of said left and right arm resting members through said back slot and said left and right slots of said seat member respectively until a bottom surface of said seat member is rested on said front supporting shoulders and said rear supporting shoulders of said left and right arm resting members respectively.
Claim 3
Dependent Claim
21 words
A portable combination chair, as recited in claim 1, further comprising a securing means for locking the seat member in position.
Claim 4
Dependent Claim
64 words
A portable combination chair, as recited in claim 2, in which said securing means comprises a first set of lockers protruded on a surface of said upper back supporting portion and positioned at a predetermined location higher than said two front and rear supporting shoulders of said left and right arm resting members for a distance equal to a thickness of said seat member.
Claim 5
Dependent Claim
124 words
A portable combination chair, as recited in claim 3, in which said securing means further comprises a second and a third sets of safety lockers which are protruded at a predetermined location on an outer surface of said left upper arm resting portion and an outer surface of said right upper arm resting portions of said left and right arm resting members respectively, said second and third sets of lockers being positioned higher than said front and rear supporting shoulders of said left and right arm supporting members for a distance equal to said thickness of said seat member, so that said seat member is assembled to position between said first, second and third sets of lockers and said front and rear supporting shoulders.
Claim 6
Dependent Claim
35 words
A portable combination chair, as recited in claim 4, in which a distance between said left and right connecting grooves is equal to a distance between said left and right slots of said seat member.
Claim 7
Dependent Claim
25 words
A portable combination chair, as recited in claim 4, in which each of said left and right arm resting members has a curved bottom side.
Claim 8
Dependent Claim
134 words
A portable combination chair, as recited in claim 3, in which said securing means further comprises a second and a third sets of safety lockers which are protruded at a predetermined location on a front and a rear side edge of said left upper arm resting portion and a front and a rear side edge outer surface of said right upper arm resting portions of said left and right arm resting members respectively, said second and third sets of lockers being positioned higher than said front and rear supporting shoulders of said left and right arm supporting members for a distance equal to said thickness of said seat member, so that said seat member is assembled to position between said first, second and third sets of lockers and said front and rear supporting shoulders.
Claim 9
Dependent Claim
35 words
A portable combination chair, as recited in claim 7, in which a distance between said left and right connecting grooves is equal to a distance between said left and right slots of said seat member.
Claim 10
Dependent Claim
25 words
A portable combination chair, as recited in claim 7, in which each of said left and right arm resting members has a flat bottom side.
Claim 11
Dependent Claim
122 words
A portable combination chair, as recited in claim 2, in which said securing means comprises a first and a second sets of safety lockers which are protruded at a predetermined location on an outer surface of said left upper arm resting portion and an outer surface of said right upper arm resting portions of said left and right arm resting members respectively, said first and second sets of lockers being positioned higher than said front and rear supporting shoulders of said left and right arm supporting members for a distance equal to said thickness of said seat member, so that said seat member is assembled to position between said first and second sets of lockers and said front and rear supporting shoulders.
Claim 12
Dependent Claim
71 words
A portable combination chair, as recited in claim 2, in which said securing means comprises a first set of lockers protruded on a left side edge and a right side edge of said upper back supporting portion and positioned at a predetermined location higher than said two front and rear supporting shoulders of said left and right arm resting members for a distance equal to a thickness of said seat member.
Claim 13
Dependent Claim
130 words
A portable combination chair, as recited in claim 2, in which said securing means comprises a first and a second sets of safety lockers which are protruded at a predetermined location on a front and a rear side edge of said left upper arm resting portion and a front and a rear side edge of said right upper arm resting portions of said left and right arm resting members respectively, said first and second sets of lockers being positioned higher than said front and rear supporting shoulders of said left and right arm supporting members for a distance equal to said thickness of said seat member, so that said seat member is assembled to position between said first and second sets of lockers and said front and rear supporting shoulders.
Claim 14
Dependent Claim
35 words
A portable combination chair, as recited in claim 2, in which a distance between said left and right connecting grooves is equal to a distance between said left and right slots of said seat member.
Claim 15
Dependent Claim
25 words
A portable combination chair, as recited in claim 2, in which each of said left and right arm resting members has a curved bottom side.
Claim 16
Dependent Claim
25 words
A portable combination chair, as recited in claim 2, in which each of said left and right arm resting members has a flat bottom side.
Claim 17
Dependent Claim
35 words
A portable combination chair, as recited in claim 1, in which a distance between said left and right connecting grooves is equal to a distance between said left and right slots of said seat member.
Claim 18
Dependent Claim
25 words
A portable combination chair, as recited in claim 16, in which each of said left and right arm resting members has a curved bottom side.
Claim 19
Dependent Claim
31 words
A portable combination chair, as recited in claim 1, in which at least a handle opening is formed at a top area of said upper back supporting portion for hand gripping.
Claim 20
Dependent Claim
25 words
A portable combination chair, as recited in claim 1, in which each of said left and right arm resting members has a curved bottom side.
Claim 21
Dependent Claim
25 words
A portable combination chair, as recited in claim 1, in which each of said left and right arm resting members has a flat bottom side.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-06-15 | 2001-12-15 | 2002-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-15 | 2005-12-15 | 2006-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-15 | 2009-12-15 | 2010-06-16 | $7700.00 | Window Closed / Lapsed |